¶ Step 1 - Tools for this section of the guide
- The following tools are required for this section of the guide:
- Allen key / hex wrenches in the following sizes: 2mm, 4mm & 5mm
- Avoid using ball end hex wrenches where possible as they are more prone to damaging the heads of smaller screws
- Spanners / wrenches in the following size: 8mm
- The following tools are recommended for this guide:
- A tape measure
- Masking tape / painters tape / scotch tape / sticky tape
¶ Step 2 - Prepare the lower left stepper motor assembly parts
- 1x Lower left stepper motor plate assembly (Set aside during frame assembly)
- 1x NEMA 17 Stepper Motor - HT - 48mm (SKU: HW3448EC)
- 1x vc4_motor_spacer_left Printed Part (SKU: PP000268)
- 1x Timing Pulley - 2GT - 20 Tooth - For 9mm Belt (SKU: HW1654WC)
- 3x M3x6 Countersink Screw (SKU: HW3414SC)
- 1x M5x45 Cap Head Screw (SKU: HW2074SC)
- 1x M5x85 Cap Head Screw (SKU: HW3671SC)
¶ Step 3 - Assemble the lower left stepper motor - Part 1
- Lower left stepper motor plate assembly
- Orient the assembly as shown
- 2x T-Nut Drop-in for 30 series - M6
- Remove both of the marked T-nuts from the M6x12 Cap Head Screws
- 2x M6x12 Cap Head Screw
- Remove both of the marked M6x12 Cap Head Screws
- Set the two M6 T-nuts and the two M6x12 Cap Head Screws aside until step 5
¶ Step 4 - Assemble the lower left stepper motor - Part 2
- Prepared lower left stepper motor plate assembly from the previous step
- 1x NEMA 17 Stepper Motor - HT - 48mm
- Orient the stepper motor so that the wiring faces towards the remaining two M6x12 Cap Head Screws as shown
- Insert the stepper motor shaft through the largest hole in the stepper motor plate assembly as shown
- The stepper motor should sit flush with the plate
- 3x M3x6 Countersink Screw
- Insert an M3x6 Countersink Screw into each of the three marked holes on the stepper motor plate assembly and fully tighten them
¶ Step 5 - Assemble the lower left stepper motor - Part 3
- vc4_motor_spacer_left Printed Part
- Align the printed part with the stepper motor assembly as shown. Make sure that the holes line up correctly with the holes in the plate
- 2x M6x12 Cap Head Screw from step 3
- Insert each M6x12 Cap Head Screw through the printed part and the stepper motor plate in the two positions shown
- 2x T-Nut Drop-in for 30 series - M6 from step 3
- Loosely thread a T-Nut onto each of the two M6x12 Cap Head Screws. Do not tighten them at this point
¶ Step 6 - Assemble the lower left stepper motor - Part 4
- 1x Timing Pulley - 2GT - 20 Tooth - For 9mm Belt
- Install the timing pulley on to the stepper motor shaft as shown
- If the timing pulley does not fit over the stepper motor shaft, make sure to slightly loosen both of set screws within the timing pulley. Do not remove them
- Make sure that one of the set screws within the timing pulley faces the flat on the shaft of the stepper motor
- Flat on the stepper motor shaft
- Position the timing pulley so that the distance from the stepper motor plate to the inner-bottom face of the timing pulley is 15mm
- Finger-tighten both set screws within the timing pulley. There is no need to fully tighten them at this point as the position will be finalised later in the guide
¶ Step 7 - Assemble the lower left stepper motor - Part 5
- 1x M5x45 Cap Head Screw
- Insert the M5x45 Cap Head Screw into the front hole in the vc4_motor_spacer_left printed part
- 1x M5x85 Cap Head Screw
- Insert the M5x85 Cap Head Screw into the rear hole in the vc4_motor_spacer_left printed part
- It may take a little force to press the M5 Cap Head Screws fully into the printed part
- Masking tape / painters tape / scotch tape / sticky tape
- The printed part is designed to help hold the M5 Cap Head Screws in place during assembly. Due to variances in printing tolerances, it is possible that the printed part does not hold the screws. In this case, place some tape over the screw heads as shown to hold them in place
- Place this assembly aside until step 15
¶ Step 8 - Prepare the lower right stepper motor assembly parts
- 1x Lower right stepper motor plate assembly (Set aside during frame assembly)
- 1x NEMA 17 Stepper Motor - HT - 48mm (SKU: HW3448EC)
- 1x vc4_motor_spacer_right Printed Part (SKU: PP000269)
- 1x Timing Pulley - 2GT - 20 Tooth - For 9mm Belt (SKU: HW1654WC)
- 3x M3x6 Countersink Screw (SKU: HW3414SC)
- 1x M5x45 Cap Head Screw (SKU: HW2074SC)
- 1x M5x85 Cap Head Screw (SKU: HW3671SC)
¶ Step 9 - Assemble the lower right stepper motor - Part 1
- Lower right stepper motor plate assembly
- Orient the assembly as shown
- 2x T-Nut Drop-in for 30 series - M6
- Remove both of the marked T-nuts from the M6x12 Cap Head Screws
- 2x M6x12 Cap Head Screw
- Remove both of the marked M6x12 Cap Head Screws
- Set the two M6 T-nuts and the two M6x12 Cap Head Screws aside until step 11
¶ Step 10 - Assemble the lower right stepper motor - Part 2
- Prepared lower right stepper motor plate assembly from the previous step
- 1x NEMA 17 Stepper Motor - HT - 48mm
- Orient the stepper motor so that the wiring faces towards the remaining two M6x12 Cap Head Screws as shown
- Insert the stepper motor shaft through the largest hole in the stepper motor plate assembly as shown
- The stepper motor should sit flush with the plate
- 3x M3x6 Countersink Screw
- Insert an M3x6 Countersink Screw into each of the three marked holes on the stepper motor plate assembly and fully tighten them
¶ Step 11 - Assemble the lower right stepper motor - Part 3
- vc4_motor_spacer_right Printed Part
- Align the printed part with the stepper motor assembly as shown. Make sure that the holes line up correctly with the holes in the plate
- 2x M6x12 Cap Head Screw from step 9
- Insert each M6x12 Cap Head Screw through the printed part and the stepper motor plate in the two positions shown
- 2x T-Nut Drop-in for 30 series - M6 from step 9
- Loosely thread a T-Nut onto each of the two M6x12 Cap Head Screws. Do not tighten them at this point
¶ Step 12 - Assemble the lower right stepper motor - Part 4
- 1x Timing Pulley - 2GT - 20 Tooth - For 9mm Belt
- Install the timing pulley on to the stepper motor shaft as shown
- If the timing pulley does not fit over the stepper motor shaft, make sure to slightly loosen both of set screws within the timing pulley. Do not remove them
- Make sure that one of the set screws within the timing pulley faces the flat on the shaft of the stepper motor
- Flat on the stepper motor shaft
- Position the timing pulley so that the distance from the stepper motor plate to the inner-top face of the timing pulley is 12mm
- Finger-tighten both set screws within the timing pulley. There is no need to fully tighten them at this point as the position will be finalised later in the guide
¶ Step 13 - Assemble the lower right stepper motor - Part 5
- 1x M5x45 Cap Head Screw
- Insert the M5x45 Cap Head Screw into the front hole in the vc4_motor_spacer_left printed part
- 1x M5x85 Cap Head Screw
- Insert the M5x85 Cap Head Screw into the rear hole in the vc4_motor_spacer_left printed part
- It may take a little force to press the M5 Cap Head Screws fully into the printed part
- Masking tape / painters tape / scotch tape / sticky tape
- The printed part is designed to help hold the M5 Cap Head Screws in place during assembly. Due to variances in printing tolerances, it is possible that the printed part does not hold the screws. In this case, place some tape over the screw heads as shown to hold them in place
- Place this assembly aside until step 19
¶ Step 14 - Prepare the idler pulleys and spacers
- 6x Rat Rig V-Core 4 - Heavy Duty Idler Pulley (SKU: HW3870WC)
- 5x Shim - Mini Precision Shim - 8x5x1mm (SKU: HW1630NC)
- 3x Aluminium Spacer - 5x8x4mm (SKU: HW3760NC)
- 1x Aluminium Spacer - 5x8x14mm (SKU: HW3761NC)
- 1x Aluminium Spacer - 5x8x17mm (SKU: HW3762NC)
¶ Step 15 - Install the lower left stepper motor idlers - Part 1
- Lower left stepper motor assembly from step 7
- Install the following components in order on to the rear M5x85 Cap Head Screw:
- 1x Shim - Mini Precision Shim - 8x5x1mm
- 1x Rat Rig V-Core 4 - Heavy Duty Idler Pulley
- 1x Shim - Mini Precision Shim - 8x5x1mm
- 1x Rat Rig V-Core 4 - Heavy Duty Idler Pulley
- 1x Aluminium Spacer - 5x8x4mm
¶ Step 16 - Install the lower left stepper motor idlers - Part 2
- Lower left stepper motor assembly from the previous step
- Install the following components in order on to the front M5x45 Cap Head Screw:
- 1x Aluminium Spacer - 5x8x14mm
- 1x Rat Rig V-Core 4 - Heavy Duty Idler Pulley
- 1x Aluminium Spacer - 5x8x4mm
- It is important to verify that all spacers and idlers are correctly placed. Failure to do so will cause issues later in the guide
¶ Step 17 - Install the lower left stepper motor - Part 1
- V-Core 4.1 frame assembly - Rear left corner
- Lower left stepper motor assembly from the previous step
- Align the lower left stepper motor assembly with the rear left extrusion as shown
- Raise the assembly upwards until the plate is flush with the extrusions above
- Make sure the assembly is fully seated against the vertical 3030 extrusion and that all four T-nuts are slotted into the upper extrusion slots
¶ Step 18 - Install the lower left stepper motor - Part 2
- Tighten the four M6x12 Cap Head Screws to secure the lower left stepper motor assembly to both extrusions
- Be careful not to overtighten the screws as you can damage the printed part
¶ Step 19 - Install the lower right stepper motor idlers - Part 1
- Lower right stepper motor assembly from step 13
- Install the following components in order on to the rear M5x85 Cap Head Screw:
- 1x Shim - Mini Precision Shim - 8x5x1mm
- 1x Rat Rig V-Core 4 - Heavy Duty Idler Pulley
- 1x Shim - Mini Precision Shim - 8x5x1mm
- 1x Rat Rig V-Core 4 - Heavy Duty Idler Pulley
- 1x Aluminium Spacer - 5x8x4mm
¶ Step 20 - Install the lower right stepper motor idlers - Part 2
- Lower right stepper motor assembly from the previous step
- Install the following components in order on to the front M5x45 Cap Head Screw:
- 1x Shim - Mini Precision Shim - 8x5x1mm
- 1x Rat Rig V-Core 4 - Heavy Duty Idler Pulley
- 1x Aluminium Spacer - 5x8x17mm
- It is important to verify that all spacers and idlers are correctly placed. Failure to do so will cause issues later in the guide
¶ Step 21 - Install the lower right stepper motor - Part 1
- V-Core 4.1 frame assembly - Rear right corner
- Lower right stepper motor assembly from the previous step
- Align the lower right stepper motor assembly with the rear right extrusion as shown
- Raise the assembly upwards until the plate is flush with the extrusions above
- Make sure the assembly is fully seated against the vertical 3030 extrusion and that all four T-nuts are slotted into the upper extrusion slots
¶ Step 22 - Install the lower right stepper motor - Part 2
- Tighten the four M6x12 Cap Head Screws to secure the lower right stepper motor assembly to both extrusions
- Be careful not to overtighten the screws as you can damage the printed part
¶ Step 23 - Prepare the lower stepper motor spacer parts
- 2x vc4_dual_motor_spacer Printed Part (SKU: PP000267)
- 1x Rat Rig V-Core 4.0 - Motor Plate - Upper Left v1.1 (SKU: HW3769PC)
- 1x Rat Rig V-Core 4.0 - Motor Plate - Upper Right v1.1 (SKU: HW3770PC)
- 8x T-Nut Drop-in for 30 series - M6 (SKU: HW1361NC)
- 2x Ball Bearing - F695-2RS (SKU: HW2947WC)
- 2x Hex Locking Nut - M5 (SKU: HW1039NC)
- 2x Aluminium Spacer - 3x6x30mm (SKU: HW3501NC)
- 2x M3x40 Countersink Screw (SKU: HW3627SC)
¶ Step 24 - Install the lower left stepper motor - Part 3
- V-Core 4.1 frame assembly - Rear left corner
- 4x T-Nut Drop-in for 30 series - M6
- Insert two M6 T-nuts into the left 3030 extrusion slot as shown
- Insert two M6 T-nuts into the rear 3030 extrusion slot as shown
- Align the T-nuts so that the marked distances measure roughly as follows:
- 15mm
- 23mm
- 36mm
¶ Step 25 - Install the lower left stepper motor - Part 4
- 1x Rat Rig V-Core 4.0 - Motor Plate - Upper Left v1.1
- Make sure that the motor plate is oriented correctly with the countersink hole facing upwards
- Align the marked hole with the tip of the M5x85 Cap Head Screw
- Slide the motor plate downwards until it rests on top of the 3030 extrusions
- Look through the four holes in the motor plate to check that the previously installed T-nuts are correctly aligned
- If the T-nuts have moved, it is possible to use the end of a hex key or a pair of tweezers to nudge them back into place
¶ Step 26 - Install the lower left stepper motor - Part 5
- 1x Ball Bearing - F695-2RS
- Insert the bearing into the marked hole on the stepper motor plate as shown. Make sure that the flange of the bearing sits flush with the stepper motor plate
- 1x Hex Locking Nut - M5
- Thread the M5 Hex Locking Nut onto the M5x45 Cap Head Screw as shown and then fully tighten it
¶ Step 27 - Install the lower left stepper motor - Part 6
- 1x Aluminium Spacer - 3x6x30mm
- Insert the aluminium spacer between the upper and lower motor plates as shown
- Align the aluminium spacer with the marked hole
- 1x M3x40 Countersink Screw
- Insert the M3x40 Countersink Screw through the hole in the upper motor plate, the aluminium spacer, lower motor plate, and then into the stepper motor
- Fully tighten the M3x40 Countersink Screw to secure the assembly together
¶ Step 28 - Install the lower left stepper motor - Part 7
- 1x vc4_dual_motor_spacer Printed Part
- Align the marked hole with the tip of the M5x85 Cap Head Screw
- Slide the vc4_dual_motor_spacer Printed Part downwards until it rests on top of the motor plate
- Make sure that the vc4_dual_motor_spacer printed part is sitting flush with the motor plate as shown
¶ Step 29 - Install the lower right stepper motor - Part 3
- V-Core 4.1 frame assembly - Rear right corner
- 4x T-Nut Drop-in for 30 series - M6
- Insert two M6 T-nuts into the right 3030 extrusion slot as shown
- Insert two M6 T-nuts into the rear 3030 extrusion slot as shown
- Align the T-nuts so that the marked distances measure roughly as follows:
- 15mm
- 23mm
- 36mm
¶ Step 30 - Install the lower right stepper motor - Part 4
- 1x Rat Rig V-Core 4.0 - Motor Plate - Upper Right v1.1
- Make sure that the motor plate is oriented correctly with the countersink hole facing upwards
- Align the marked hole with the tip of the M5x85 Cap Head Screw
- Slide the motor plate downwards until it rests on top of the 3030 extrusions
- Look through the four holes in the motor plate to check that the previously installed T-nuts are correctly aligned
- If the T-nuts have moved, it is possible to use the end of a hex key or a pair of tweezers to nudge them back into place
¶ Step 31 - Install the lower right stepper motor - Part 5
- 1x Ball Bearing - F695-2RS
- Insert the bearing into the marked hole on the stepper motor plate as shown. Make sure that the flange of the bearing sits flush with the stepper motor plate
- 1x Hex Locking Nut - M5
- Thread the M5 Hex Locking Nut onto the M5x45 Cap Head Screw as shown and then fully tighten it
¶ Step 32 - Install the lower right stepper motor - Part 6
- 1x Aluminium Spacer - 3x6x30mm
- Insert the aluminium spacer between the upper and lower motor plates as shown
- Align the aluminium spacer with the marked hole
- 1x M3x40 Countersink Screw
- Insert the M3x40 Countersink Screw through the hole in the upper motor plate, the aluminium spacer, lower motor plate, and then into the stepper motor
- Fully tighten the M3x40 Countersink Screw to secure the assembly together
¶ Step 33 - Install the lower right stepper motor - Part 7
- 1x vc4_dual_motor_spacer Printed Part
- Align the marked hole with the tip of the M5x85 Cap Head Screw
- Slide the vc4_dual_motor_spacer Printed Part downwards until it rests on top of the motor plate
- Make sure that the vc4_dual_motor_spacer printed part is sitting flush with the motor plate as shown
¶ Step 34 - Prepare the upper stepper motor assembly parts
- 1x Rat Rig V-Core 4.0 - Motor Plate - Lower Left v1.0 (SKU: HW3606PC)
- 1x Rat Rig V-Core 4.0 - Motor Plate - Lower Right v1.0 (SKU: HW3607PC)
- 2x NEMA 17 Stepper Motor - HT - 48mm (SKU: HW3448EC)
- 2x Shim - Mini Precision Shim - 8x5x1mm (SKU: HW1630NC)
- 2x Timing Pulley - 2GT - 20 Tooth - For 9mm Belt (SKU: HW1654WC)
- 6x M3x6 Countersink Screw (SKU: HW3414SC)
- 4x M5x45 Cap Head Screw (SKU: HW2074SC)
¶ Step 35 - Assemble the upper left stepper motor - Part 1
- 1x Rat Rig V-Core 4.0 - Motor Plate - Lower Right v1.0
- Please note: Despite being the upper left stepper motor assembly, this plate is the lower right variant as the assembly is installed upside down
- Orient the plate as shown with the countersink holes facing upwards
- 1x NEMA 17 Stepper Motor - HT - 48mm
- Orient the stepper motor so that the wiring faces towards the edge of the plate with the wider spaced M6 holes as shown
- Insert the stepper motor shaft through the largest hole in the stepper motor plate assembly as shown. The stepper motor should sit flush with the plate
- 3x M3x6 Countersink Screw
- Insert an M3x6 Countersink Screw into each of the three marked holes on the stepper motor plate assembly and fully tighten them
¶ Step 36 - Assemble the upper left stepper motor - Part 2
- 1x Timing Pulley - 2GT - 20 Tooth - For 9mm Belt
- Install the timing pulley on to the stepper motor shaft as shown
- If the timing pulley does not fit over the stepper motor shaft, make sure to slightly loosen both of set screws within the timing pulley. Do not remove them
- Make sure that one of the set screws within the timing pulley faces the flat on the shaft of the stepper motor
- Flat on the stepper motor shaft
- Position the timing pulley so that the distance from the stepper motor plate to the inner-bottom face of the timing pulley is 9mm
- Finger-tighten both set screws within the timing pulley. There is no need to fully tighten them at this point as the position will be finalised later in the guide
¶ Step 37 - Assemble the upper left stepper motor - Part 3
- 1x M5x45 Cap Head Screw
- 1x Shim - Mini Precision Shim - 8x5x1mm
- Install the mini precision shim onto the M5x45 Cap Head Screw
- Insert the M5x45 Cap Head Screw into the marked hole on the plate
- 1x M5x45 Cap Head Screw
- Insert the second M5x45 Cap Head Screw into the marked hole on the plate
- Make sure that the two M5x45 Cap Head Screws do not fall out of the assembly
¶ Step 38 - Assemble the upper left stepper motor - Part 4
- It is strongly recommended to use some tape to hold the two M5x45 Cap Head Screws in place
- Upper left stepper motor assembly from the previous step
- Masking tape / painters tape / scotch tape / sticky tape
- Apply some tape over the heads of both M5x45 Cap Head Screws to prevent them from falling out
- Set this assembly aside until step 44
¶ Step 39 - Assemble the upper right stepper motor - Part 1
- 1x Rat Rig V-Core 4.0 - Motor Plate - Lower Left v1.0
- Please note: Despite being the upper right stepper motor assembly, this plate is the lower left variant as the assembly is installed upside down
- Orient the plate as shown with the countersink holes facing upwards
- 1x NEMA 17 Stepper Motor - HT - 48mm
- Orient the stepper motor so that the wiring faces towards the edge of the plate with the wider spaced M6 holes as shown
- Insert the stepper motor shaft through the largest hole in the stepper motor plate assembly as shown. The stepper motor should sit flush with the plate
- 3x M3x6 Countersink Screw
- Insert an M3x6 Countersink Screw into each of the three marked holes on the stepper motor plate assembly and fully tighten them
¶ Step 40 - Assemble the upper right stepper motor - Part 2
- 1x Timing Pulley - 2GT - 20 Tooth - For 9mm Belt
- Install the timing pulley on to the stepper motor shaft as shown
- If the timing pulley does not fit over the stepper motor shaft, make sure to slightly loosen both of set screws within the timing pulley. Do not remove them
- Make sure that one of the set screws within the timing pulley faces the flat on the shaft of the stepper motor
- Flat on the stepper motor shaft
- Position the timing pulley so that the distance from the stepper motor plate to the inner-bottom face of the timing pulley is 9mm
- Finger-tighten both set screws within the timing pulley. There is no need to fully tighten them at this point as the position will be finalised later in the guide
¶ Step 41 - Assemble the upper right stepper motor - Part 3
- 1x M5x45 Cap Head Screw
- 1x Shim - Mini Precision Shim - 8x5x1mm
- Install the mini precision shim onto the M5x45 Cap Head Screw
- Insert the M5x45 Cap Head Screw into the marked hole on the plate
- 1x M5x45 Cap Head Screw
- Insert the second M5x45 Cap Head Screw into the marked hole on the plate
- Make sure that the two M5x45 Cap Head Screws do not fall out of the assembly
¶ Step 42 - Assemble the upper right stepper motor - Part 4
- It is strongly recommended to use some tape to hold the two M5x45 Cap Head Screws in place
- Upper right stepper motor assembly from the previous step
- Masking tape / painters tape / scotch tape / sticky tape
- Apply some tape over the heads of both M5x45 Cap Head Screws to prevent them from falling out
- Set this assembly aside until step 48
¶ Step 43 - Prepare the upper idler pulleys and spacers
- 1x Rat Rig V-Core 4.0 - Motor Plate - Upper Left v1.1 (SKU: HW3769PC)
- 1x Rat Rig V-Core 4.0 - Motor Plate - Upper Right v1.1 (SKU: HW3770PC)
- 4x Rat Rig V-Core 4 - Heavy Duty Idler Pulley (SKU: HW3870WC)
- 8x Aluminium Spacer - 5x8x4mm (SKU: HW3760NC)
- 4x Aluminium Spacer - 5x8x10mm (SKU: HW3764NC)
- 2x Ball Bearing - F695-2RS (SKU: HW2947WC)
- 2x Hex Locking Nut - M5 (SKU: HW1039NC)
¶ Step 44 - Assemble the upper left stepper motor - Part 5
- Upper left stepper motor assembly from step 38
- Install the following components in order onto the rear M5x45 Cap Head Screw:
- 2x Aluminium Spacer - 5x8x4mm
- 1x Rat Rig V-Core 4 - Heavy Duty Idler Pulley
- 1x Aluminium Spacer - 5x8x10mm
¶ Step 45 - Assemble the upper left stepper motor - Part 6
- Upper left stepper motor assembly from the previous step
- Install the following components in order onto the front M5x45 Cap Head Screw:
- 2x Aluminium Spacer - 5x8x4mm
- 1x Rat Rig V-Core 4 - Heavy Duty Idler Pulley
- 1x Aluminium Spacer - 5x8x10mm
¶ Step 46 - Assemble the upper left stepper motor - Part 7
- 1x Rat Rig V-Core 4.0 - Motor Plate - Upper Right v1.0
- Please note: Despite being the upper left stepper motor assembly, this plate is the upper right variant as the assembly is installed upside down
- Make sure that the motor plate is oriented correctly with the countersink hole facing upwards
- Align the marked holes with the tips of the M5x45 Cap Head Screws
- Slide the motor plate downwards until it rests on top of the assembly
- 1x Hex Locking Nut - M5
- Thread the M5 Hex Locking Nut onto the front M5x45 Cap Head Screw as shown and then fully tighten it
- If you applied tape to the screw heads in step 38, you will need to remove it from the front M5x45 Cap Head Screw to secure it in place. Do not remove the tape from the rear M5x45 Cap Head Screw at this point
¶ Step 47 - Assemble the upper left stepper motor - Part 8
- 1x Ball Bearing - F695-2RS
- Insert the bearing into the marked hole on the stepper motor plate as shown. Make sure that the flange of the bearing sits flush with the stepper motor plate
- Set this assembly aside until step 53
¶ Step 48 - Assemble the upper right stepper motor - Part 5
- Upper right stepper motor assembly from step 42
- Install the following components in order onto the rear M5x45 Cap Head Screw:
- 2x Aluminium Spacer - 5x8x4mm
- 1x Rat Rig V-Core 4 - Heavy Duty Idler Pulley
- 1x Aluminium Spacer - 5x8x10mm
¶ Step 49 - Assemble the upper right stepper motor - Part 6
- Upper right stepper motor assembly from the previous step
- Install the following components in order onto the front M5x45 Cap Head Screw:
- 2x Aluminium Spacer - 5x8x4mm
- 1x Rat Rig V-Core 4 - Heavy Duty Idler Pulley
- 1x Aluminium Spacer - 5x8x10mm
¶ Step 50 - Assemble the upper right stepper motor - Part 7
- 1x Rat Rig V-Core 4.0 - Motor Plate - Upper Left v1.0
- Please note: Despite being the upper right stepper motor assembly, this plate is the upper left variant as the assembly is installed upside down
- Make sure that the motor plate is oriented correctly with the countersink hole facing upwards
- Align the marked holes with the tips of the M5x45 Cap Head Screws
- Slide the motor plate downwards until it rests on top of the assembly
- 1x Hex Locking Nut - M5
- Thread the M5 Hex Locking Nut onto the front M5x45 Cap Head Screw as shown and then fully tighten it
- If you applied tape to the screw heads in step 42, you will need to remove it from the front M5x45 Cap Head Screw to secure it in place. Do not remove the tape from the rear M5x45 Cap Head Screw at this point
¶ Step 51 - Assemble the upper right stepper motor - Part 8
- 1x Ball Bearing - F695-2RS
- Insert the bearing into the marked hole on the stepper motor plate as shown. Make sure that the flange of the bearing sits flush with the stepper motor plate
- Set this assembly aside until step 58
¶ Step 52 - Prepare the upper spacers and fasteners
- 8x M6x50 Cap Head Screw (SKU: HW3670SC)
- 8x Aluminium Spacer - 6x10x30mm (SKU: HW3626NC)
- 2x Aluminium Spacer - 3x6x30mm (SKU: HW3501NC)
- 2x M3x40 Countersink Screw (SKU: HW3627SC)
- 2x Hex Locking Nut - M5 (SKU: HW1039NC)
¶ Step 53 - Install the upper left stepper motor - Part 1
- Upper left stepper motor assembly from step 47
- 1x Aluminium Spacer - 3x6x30mm
- Insert the aluminium spacer between the upper and lower motor plates as shown
- Align the aluminium spacer with the marked hole
- 1x M3x40 Countersink Screw
- Insert the M3x40 Countersink Screw through the hole in the upper motor plate, the aluminium spacer, lower motor plate, and then into the stepper motor
- Fully tighten the M3x40 Countersink Screw to secure the assembly together
¶ Step 54 - Install the upper left stepper motor - Part 2
- Orient the upper left stepper motor assembly from the previous step as shown
- 4x Aluminium Spacer - 6x10x30mm
- Insert the aluminium spacers between the upper and lower motor plates as shown
- Align the aluminium spacers with the marked holes
- 4x M6x50 Cap Head Screw
- Insert an M6x50 Cap Head Screw through each marked hole in the lower motor plate, passing them through the aluminium spacers, and then the upper motor plate as shown
- If you applied tape to the screw heads in step 42, you will need to remove the remaining tape at this point
¶ Step 55 - Install the upper left stepper motor - Part 3
- V-Core 4.1 frame assembly - Rear left corner
- Upper left stepper motor assembly from the previous step
- Align the upper left stepper motor assembly with the rear left extrusion as shown
- Make sure that the tip of the M5x85 Cap Head Screw in the lower left stepper motor assembly is aligned with the tip of the M5x45 Cap Head Screw in the upper left stepper motor assembly
- Slowly lower the upper left stepper motor assembly
- Allow the M5x85 Cap Head Screw to push the M5x45 Cap Head Screw out of the idler and spacer stack
- The M5x45 Cap Head Screw is no longer required and can be stored away
¶ Step 56 - Install the upper left stepper motor - Part 4
- V-Core 4.1 frame assembly - Rear left corner
- Make sure the upper motor assembly is fully seated against the vertical 3030 extrusion as shown
- 4x M6x50 Cap Head Screw
- Slowly and carefully thread each of the M6x50 Cap Head Screws into the T-nuts which were installed and aligned in step 25. Do not tighten them at this point
- Once all four M6x50 Cap Head Screws have engaged with the T-nuts, fully tighten them to secure the upper motor assembly to the frame
¶ Step 57 - Install the upper left stepper motor - Part 5
- 1x Hex Locking Nut - M5
- Thread the M5 Hex Locking Nut onto the M5x85 Cap Head Screw as shown and fully tighten it
- If you applied tape to the screw heads in step 7, you will need to remove any remaining tape on the left side to secure the M5x85 Cap Head Screw in place
- Be careful not to overtighten the screw as you can damage the printed part
- Completed upper and lower left motor assembly
¶ Step 58 - Install the upper right stepper motor - Part 1
- Upper right stepper motor assembly from step 51
- 1x Aluminium Spacer - 3x6x30mm
- Insert the aluminium spacer between the upper and lower motor plates as shown
- Align the aluminium spacer with the marked hole
- 1x M3x40 Countersink Screw
- Insert the M3x40 Countersink Screw through the hole in the upper motor plate, the aluminium spacer, lower motor plate, and then into the stepper motor
- Fully tighten the M3x40 Countersink Screw to secure the assembly together
¶ Step 59 - Install the upper right stepper motor - Part 2
- Orient the upper right stepper motor assembly from the previous step as shown
- 4x Aluminium Spacer - 6x10x30mm
- Insert the aluminium spacers between the upper and lower motor plates as shown
- Align the aluminium spacers with the marked holes
- 4x M6x50 Cap Head Screw
- Insert an M6x50 Cap Head Screw through each marked hole in the lower motor plate, passing them through the aluminium spacers, and then the upper motor plate as shown
- If you applied tape to the screw heads in step 38, you will need to remove the remaining tape at this point
¶ Step 60 - Install the upper right stepper motor - Part 3
- V-Core 4.1 frame assembly - Rear right corner
- Upper right stepper motor assembly from the previous step
- Align the upper right stepper motor assembly with the rear right extrusion as shown
- Make sure that the tip of the M5x85 Cap Head Screw in the lower left stepper motor assembly is aligned with the tip of the M5x45 Cap Head Screw in the upper right stepper motor assembly
- Slowly lower the upper right stepper motor assembly
- Allow the M5x85 Cap Head Screw to push the M5x45 Cap Head Screw out of the idler and spacer stack
- The M5x45 Cap Head Screw is no longer required and can be stored away
¶ Step 61 - Install the upper right stepper motor - Part 4
- V-Core 4.1 frame assembly - Rear right corner
- Make sure the upper motor assembly is fully seated against the vertical 3030 extrusion as shown
- 4x M6x50 Cap Head Screw
- Slowly and carefully thread each of the M6x50 Cap Head Screws into the T-nuts which were installed and aligned in step 30. Do not tighten them at this point
- Once all four M6x50 Cap Head Screws have engaged with the T-nuts, fully tighten them to secure the upper motor assembly to the frame
¶ Step 62 - Install the upper right stepper motor - Part 5
- 1x Hex Locking Nut - M5
- Thread the M5 Hex Locking Nut onto the M5x85 Cap Head Screw as shown and fully tighten it
- If you applied tape to the screw heads in step 13, you will need to remove any remaining tape on the left side to secure the M5x85 Cap Head Screw in place
- Be careful not to overtighten the screw as you can damage the printed part
- Completed upper and lower right motor assembly
¶ Step 63 - Prepare the tensioner arm parts
- 4x Rat Rig V-Core 4.0 - Tensioner Arm v1.0 (SKU: HW3615PC)
- 4x Rat Rig V-Core 4 - Heavy Duty Idler Pulley (SKU: HW3870WC)
- 8x Shim - Mini Precision Shim - 8x5x1mm (SKU: HW1630NC)
- 4x M5x22 Countersink Screw (SKU: HW3638SC)
¶ Step 64 - Assemble the tensioner arms
- 1x Rat Rig V-Core 4.0 - Tensioner Arm v1.0
- Assemble the idler pulley assembly in the following order, and then insert it into the tensioner arm as shown:
- 1x Shim - Mini Precision Shim - 8x5x1mm
- 1x Rat Rig V-Core 4 - Heavy Duty Idler Pulley
- 1x Shim - Mini Precision Shim - 8x5x1mm
- 1x M5x22 Countersink Screw
- Insert the M5x22 Countersink Screw through the top of the tensioner arm and the idler pulley assembly, then tighten it fully
- Prepare four tensioner arm assemblies and then set them aside
¶ Step 65 - Prepare the tensioner body parts
- 1x Rat Rig V-Core 4.0 - Tensioner Body - Left v1.0 (SKU: HW3613PC)
- 1x Rat Rig V-Core 4.0 - Tensioner Body - Right v1.0 (SKU: HW3614PC)
- 6x M4x30 Cap Head Screw (SKU: HW3637SC)
- 4x M4x20 Cap Head Screw (SKU: HW1621SC)
- 4x M4x6 Set Screw (SKU: HW3639SC)
¶ Step 66 - Assemble the left tensioner - Part 1
- V-Core 4.1 frame assembly - Front left corner
- Locate the three M4 screw holes within the 3030 extrusion slot
- 3x M4x30 Cap Head Screw
- Insert an M4x30 Cap Head Screw in to each of the three screw holes as shown
¶ Step 67 - Assemble the left tensioner - Part 2
- 1x Rat Rig V-Core 4.0 - Tensioner Body - Left v1.0
- Orient the tensioner body as shown
- Align the three M4 screw threads in the tensioner body with the tips of the three M4x30 Cap Head Screws
- Thread all three M4x30 Cap Head Screws into the tensioner body but do not tighten them. The tensioner body should remain slightly loose so that is can be correctly aligned before being fully fastened to the frame assembly
¶ Step 68 - Assemble the left tensioner - Part 3
- Press the tensioner body against the 3030 extrusion whilst pushing it towards the front of the frame assembly as shown
- Continue to hold the tensioner body in this position until it is fully fastened
- Carefully and progressively fasten all three M4x30 Cap Head Screws, swapping from one to the other to uniformly secure the tensioner body to the frame
- Make sure that all three M4x30 Cap Head Screws are fully fastened
¶ Step 69 - Assemble the left tensioner - Part 4
- 1x M4x20 Cap Head Screw
- Fully insert the M4x20 Cap Head Screw into the lower front hole on the tensioner body, as shown
- 1x Tensioner arm assembly from step 64
- Partially thread the M4x20 Cap Head Screw into the tensioner arm assembly
- It is important to only partially thread the M4x20 Cap Head Screw into the tensioner as this will allow for the greatest range for tensioning the belts during commissioning
¶ Step 70 - Assemble the left tensioner - Part 5
- 1x M4x20 Cap Head Screw
- Fully insert the M4x20 Cap Head Screw into the upper front hole on the tensioner body, as shown
- 1x Tensioner arm assembly from step 64
- Partially thread the M4x20 Cap Head Screw into the tensioner arm assembly
- It is important to only partially thread the M4x20 Cap Head Screw into the tensioner as this will allow for the greatest range for tensioning the belts during commissioning
¶ Step 71 - Assemble the left tensioner - Part 6
- 2x M4x6 Set Screw
- Partially thread an M4x6 Set Screw into each of the marked holes on the tensioner body
- Do not fully thread or tighten the M4x6 Set Screws, they will be used to retain the tensioner arms during commissioning and must remain loose for now
¶ Step 72 - Assemble the right tensioner - Part 1
- V-Core 4.1 frame assembly - Front right corner
- Locate the three M4 screw holes within the 3030 extrusion slot
- 3x M4x30 Cap Head Screw
- Insert an M4x30 Cap Head Screw in to each of the three screw holes as shown
¶ Step 73 - Assemble the right tensioner - Part 2
- 1x Rat Rig V-Core 4.0 - Tensioner Body - Right v1.0
- Orient the tensioner body as shown
- Align the three M4 screw threads in the tensioner body with the tips of the three M4x30 Cap Head Screws
- Thread all three M4x30 Cap Head Screws into the tensioner body but do not tighten them. The tensioner body should remain slightly loose so that is can be correctly aligned before being fully fastened to the frame assembly
¶ Step 74 - Assemble the right tensioner - Part 3
- Press the tensioner body against the 3030 extrusion whilst pushing it towards the front of the frame assembly as shown
- Continue to hold the tensioner body in this position until it is fully fastened
- Carefully and progressively fasten all three M4x30 Cap Head Screws, swapping from one to the other to uniformly secure the tensioner body to the frame
- Make sure that all three M4x30 Cap Head Screws are fully fastened
¶ Step 75 - Assemble the right tensioner - Part 4
- 1x M4x20 Cap Head Screw
- Fully insert the M4x20 Cap Head Screw into the lower front hole on the tensioner body, as shown
- 1x Tensioner arm assembly from step 64
- Partially thread the M4x20 Cap Head Screw into the tensioner arm assembly
- It is important to only partially thread the M4x20 Cap Head Screw into the tensioner as this will allow for the greatest range for tensioning the belts during commissioning
¶ Step 76 - Assemble the right tensioner - Part 5
- 1x M4x20 Cap Head Screw
- Fully insert the M4x20 Cap Head Screw into the upper front hole on the tensioner body, as shown
- 1x Tensioner arm assembly from step 64
- Partially thread the M4x20 Cap Head Screw into the tensioner arm assembly
- It is important to only partially thread the M4x20 Cap Head Screw into the tensioner as this will allow for the greatest range for tensioning the belts during commissioning
¶ Step 77 - Assemble the right tensioner - Part 6
- 2x M4x6 Set Screw
- Partially thread an M4x6 Set Screw into each of the marked holes on the tensioner body
- Do not fully thread or tighten the M4x6 Set Screws, they will be used to retain the tensioner arms during commissioning and must remain loose for now
¶ Step 78 - Remove the Y-axis plastic linear rail stops
- Left-hand Y-axis linear rail plastic stop
- Right-hand Y-axis linear rail plastic stop
- The plastic stops are no longer required and can be discarded
¶ Step 79 - Next guide
- Continue with the next guide: Bed Assembly