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Minor Versionm

by Dozuki System

  1. Attach 2 x ACME-Nut-Blocks to the Y-Plate-Right using 4 x M5-Low-Profile-25mm bolts & 4 x M5-Nyloc-Nuts. On each bolt, in-between the ACME-Nut-Block and Y-Plate-Right, there should be an Aluminium-Spacer-3mm and a Precision-Shim. Only loosely tighten these bolts so the ACME-Nut-Blocks can still move side to side. Double check you have the correct plate. Orientated as the picture, there should be no bearing recess on the same side as the ACME-Nut-Blocks.
    • Attach 2 x ACME-Nut-Blocks to the Y-Plate-Right using 4 x M5-Low-Profile-25mm bolts & 4 x M5-Nyloc-Nuts. On each bolt, in-between the ACME-Nut-Block and Y-Plate-Right, there should be an Aluminium-Spacer-3mm and a Precision-Shim. Only loosely tighten these bolts so the ACME-Nut-Blocks can still move side to side.

    • Double check you have the correct plate. Orientated as the picture, there should be no bearing recess on the same side as the ACME-Nut-Blocks.

    • Thread a Y-ACME-Lead-Screw through both ACME-Nut-Blocks. Tighten the bolts holding one of the ACME-Nut-Blocks, making sure it is square to the Y-Plate-Right.

    • To remove any backlash, pinch the loose ACME-Nut-Block towards the previous one, and tighten the bolts holding it. Leave the Y-ACME-Lead-Screw threaded through the ACME-Nut-Blocks.

  2. First attach the bottom right wheel set; insert a M5-Low-Profile-60mm bolt through the Y-Plate-Right-Assembly from the back. On to this bolt, add an Eccentric-Spacer-6mm, Precision-Shim, Solid-V-Wheel-Xtreme-Assembly, Aluminium Spacer-9mm, Solid-V-Wheel-Xtreme-Assembly, Precision Shim, and a Eccentric-Spacer-6mm in this order. Next, add a Y-Plate-Inner onto the top of this assemblage, and then slightly thread on a M5-Nyloc-Nut. The rounded portion of the Eccentric-Spacer-6mm should be inserted into the hole on either the Y-Plate-Left-Assembly or Y-Plate-Inner (depending on which side it is on).
    • First attach the bottom right wheel set; insert a M5-Low-Profile-60mm bolt through the Y-Plate-Right-Assembly from the back. On to this bolt, add an Eccentric-Spacer-6mm, Precision-Shim, Solid-V-Wheel-Xtreme-Assembly, Aluminium Spacer-9mm, Solid-V-Wheel-Xtreme-Assembly, Precision Shim, and a Eccentric-Spacer-6mm in this order.

    • Next, add a Y-Plate-Inner onto the top of this assemblage, and then slightly thread on a M5-Nyloc-Nut. The rounded portion of the Eccentric-Spacer-6mm should be inserted into the hole on either the Y-Plate-Left-Assembly or Y-Plate-Inner (depending on which side it is on).

    • Repeat for the other wheel set on the bottom row corner.

    • Repeat for the 2 wheel sets on the top row, however for these sets use Aluminium-Spacer-6mms instead of Eccentric-Spacer-6mms.

    • Once all of the wheels are attached the M5-Nyloc-Nuts can be tightened down. Ensure that the Solid-V-Xtreme-Wheels can still rotate freely. On the hexagonal portion of the Eccentric-Spacer-6mm, there will be one face that is marked with ‘6mm’.

    • Using a spanner, adjust each Eccentric-Spacer-6mm so that this face is facing downwards. Doing this maximizes the gap between the top and bottom row of wheels.

  3. Run any piece of C-Beam extrusion in-between the two rows of wheels. Initially, there may be a small amount of play between the C-Beam and wheels. Turn the assembly upside down so the C-Beam is sitting on the row of wheels with the Aluminium-Spacer-6mms.
    • Run any piece of C-Beam extrusion in-between the two rows of wheels. Initially, there may be a small amount of play between the C-Beam and wheels. Turn the assembly upside down so the C-Beam is sitting on the row of wheels with the Aluminium-Spacer-6mms.

    • Starting with one pair of wheels, adjust both Eccentric-Spacer-6mms down onto the C-Beam Extrusion until there is a small amount of friction between both wheels and the C-Beam Extrusion.

    • When adjusting the pair of Eccentric-Spacer-6mms ideally they should be adjusted identically. However, sometimes one will need to be adjusted slightly more than the other to get both wheels engaged with the C-Beam extrusion.

    • Repeat for the other pair of wheels with eccentric spacers.

    • Slide the C-Beam extrusion back and forth through the wheels. This should require a small amount of force, and all wheels should spin as it rolls. Also check there is no wobbling of the extrusion. Once happy, double check the tightness of the M5-Nyloc Nuts.

  4. Repeat the  this section for the Y-Plate-left. As seen above it should be a mirror image of the Y-Plate-Right-Assembly. A NEMA23-Stepper-Motor needs attaching to the Y-Plate-Left. See pictures 2 & 3. Slide the 1/4” side (the side with the smallest hole) of the Flexible-Coupler onto the shaft of the NEMA23-Stepper-Motor. Don’t tighten it down at this point.
    • Repeat the this section for the Y-Plate-left. As seen above it should be a mirror image of the Y-Plate-Right-Assembly.

    • A NEMA23-Stepper-Motor needs attaching to the Y-Plate-Left. See pictures 2 & 3.

    • Slide the 1/4” side (the side with the smallest hole) of the Flexible-Coupler onto the shaft of the NEMA23-Stepper-Motor. Don’t tighten it down at this point.

    • Attach the NEMA23-Stepper-Motor to the threaded holes on the Y-Plate-Left using 4 x M5-Low-Profile-50mm bolts and 4 x Aluminium-Spacer-40mm’s.

    • Orient the NEMA23- Stepper-Motor so that the wire is towards the back of the Y-Plate-Left (the side closet to the small rectangle opening).

Conclusion

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Robert

Member since: 12/03/2018

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10 Comments

I'‘m in the process of assembling workbee 1500x1500. In this instruction 4 pair of wheels are shown. In the Openbuilds youtube video for workbee 1000x1000 they are using 3 pairs of wheels more (1 pair more on the bottom and 2 pairs more in the upper side). Shouldn’t I have it too in such big machine?

Hodo - Reply

Hi there, i do not believe you have included all the parts. In the diagram for the Y PLATE inner and left. It shows there to be a Y-ACME-Screw for each set up..

I have not recieved this in my kit. i have only recieved one screw labled Z-acme- screw.

Nothing seems to be in the correct boxes. do you have an inventory list of everything i should hae in this kit please?

i cannot carry on with my build until this is resolved. Very disappointed after spending over £2000

jimi barker - Reply

You have probably figured this out by now but its not the Z acme-screw you should be using,, thats for the Z axis.. so you only need one of those. The Y-acme screws are the longer ones. the diagram is just showing a section of the screw to illustrate where it goes! My machine is 1500 x 1500mm so the 3 longer ACME screws weren’t labelled as they are all the same size!

Joe Johnson -

It would be useful to say which packets/boxes the parts are in to save me opening everything.

Brian Trowbridge - Reply

Even with the eccentric nuts st to fully loose, the C-beam is still tight. Is this normal?

Brian Trowbridge - Reply

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