Ultimaker rev.3 assembly: X & Y motors
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| Mechanical assembly of the Ultimaker revision 3 (click for an overview) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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2. X-Y motors |
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Click here for a detailed photo series of the construction on our flickr account.
Contents |
What you'll need
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Time needed: About 20 to 40 minutes. |
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Tools needed:
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| Qty. | Description | Notes |
|---|---|---|
| 3 | Motors with simple round axles | the one with the short wire is for the Z-axis, the 2 other for X and Y. The fourth one is for the extruder later. |
| 2 | Wooden part 7C | For the X & Y motors. |
| 4 | Wooden part 7B | For the X & Y motors. |
| 8 | Bolts 20 MM | For the X & Y motors. |
| 4 | Bolts 10 MM | For the Z-motor. |
| 2 | Short timing belts | For the X & Y motors. |
| 8 | Washers | Should fit on the bolts |
| 2 | Pulleys | For the X & Y motors. |
| 1 | Resiliert coupling | For the Z-motor. |
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The BLACK/GREEN wire pair and RED/BLUE wire pair should be twisted. |
Step 1: X and Y motor assembly
| Qty. | Description | Notes |
|---|---|---|
| 2 | Motors with simple round axles | the one with the short wire is for the Z-axis, the 2 other for X and Y |
| 2 | Wooden part 7C | For the X & Y motors. |
| 4 | Wooden part 7B | For the X & Y motors. |
| 2 | Short timing belts | For the X & Y motors. |
| 2 | Pulleys | For the X & Y motors. |
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for this step you have to take 2 motors with long wires. |
1. Prepare the motors by placing the 5mm internal diameter pulleys on the two motors.
2. Keep the thin part against the motor.
3. Keep a tiny gap in between the motor and pulley and fasten it.
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Because of the tiny gap, the pulley should rotate freely. |
You need to do the following steps 2 times, one time for each motor.
4. Take the motor and put it on its back side.
5. Take part 7C and lay it on top of one of the motors and guide the wires like in the picture.
6. Take part 7B and place it on top of 7C.
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There is a thin side of the U shaped 7B part and a thick side. The thin side should wind up in the corner after assembly |
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In particular, note the little groove on the U-shaped spacer parts. The grooves should be placed so that they are all pointing inward (they don't need to line up exactly).
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7. Lay the timing belt around the pulley.
8.Take another part 7B and place it on top again of the other 7B.
9. Do the same with the other motor.
Step 2: Mounting the X and Y motor
| Qty. | Description | Notes |
|---|---|---|
| 8 | Bolts 20 MM | For the X & Y motors. |
| 8 | Washers | Should fit on the bolts |
1.Put 4 bolts (20mm) with washers through the holes on the back side of the machine on the place where the motor needs to be mounted.
2. Put the motor in place. Make sure the wires of the motor, the wires of the limit switches and the timing belt don't get stuck!
3. Tighten the 4 bolts of the motor just a little bit, so it can slide up and down a little. These bolts will be tightened later when all axes are in place.
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Mounting the washers You should use 4 washers on the bolts in the X and Y motors to ensure that the motors will not slide upward. This helps maintain belt tension for the short belts. If you somehow do not have 3mm washers in the nuts and bolts pack, you can use any 3mm (or 1/8 inch) washer from the hardware store. |
4. Do the same for the Y motor and mount this one to the left panel.
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5. Push the wires through the cable ducts and out through the bottom panel.
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Step 3: Z-motor
| Qty. | Description | Notes |
|---|---|---|
| 1 | Motors with simple round axles | the one with the short wire. |
| 4 | Bolts 10 MM | For the Z-motor. |
| 1 | Resiliert coupling | For the Z-motor. |
1.Take the third motor (with the shortest wires) and mount on the underside of the bottom panel. Use 4 bolts of 10mm. Make sure that the wires stick out towards the center of the bottom panel.
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Because there is no clearance between the motor and the back, be sure to force the motor face to seat flat on the bottom. |
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2.Place the Resiliert coupling on top of the motor.
3. Use the hex key to set the coupling at the right height. The coupling has 2 different sides, a 5mm and an 8mm.
4. Put the 5mm side on top of the motor and tighten the little screws, only at the bottom of the coupling.
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On to the next section:
| Mechanical assembly of the Ultimaker revision 3 (click for an overview) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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2. X-Y motors |
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If you'd like to read older comments for troubleshooting, most of them are at the bottom of the previous revision's page.
