2040 x axis

I have been working on removing the reliance on laser cut acrylic. has anyone tried 2040 for the x axis?


also has anyone printed y axis end plates?

Have you seen the aluminium X-arm and rib from DaveK? [forums.reprap.org] I have a set and they are excellent.

My concern with printed end plates is that they might not be as stable as the acrylic ones.

Edited 2 time(s). Last edit at 09/26/2014 10:04AM by dc42.

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Large delta printer [miscsolutions.wordpress.com], E3D tool changer, Robotdigg SCARA printer, Crane Quad and Ormerod

Disclosure: I design Duet electronics and work on RepRapFirmware, [duet3d.com].

The position of the Y axis ground rods is critical - they must be perfectly parallel and at 90 deg to the X and Z axis as well as being held tightly. Printed Y axis end plates could be designed to grip the rods (like the X end plate does), but are then unlikely to have the necessary precision, though it should be possible to make them adjustable (and so will require mechanical adjustment which may not be a bad thing). I should think that after adjustment they will be at least as stable as acrylic so long as the printed part is thick enough.

If however you decide to design such a mod, it will probably be necessary to move the position of the Y motor, so get some new toothed belt in case the existing one is then too short.

Dave

yeah to be honest it would have been cheaper to just get some cut out of alu as shipping the 2040 here was a bit of a hassle but point was more to replace the need for laser cut parts. As the 2040 was used in the kit anyway and is easily cut it seemed like a good option.

for the end plate i think something like this should work although once i have printed one if i am still not happy i will increase the size of the base and add some gussets

Quote
dmould
it should be possible to make them adjustable (and so will require mechanical adjustment which may not be a bad thing).
Dave

yeah i agree on the need for them to be parallel so stop the bearing binding.
The orthogonal alignment is already relying on printed non adjustable parts so i dont see this as an issue

the current motor position is the same but i will add some belt tensioner to the other side so may end up with a different belt size but i have plenty of mxl belt here.

Edited 1 time(s). Last edit at 09/26/2014 10:54AM by zeb00.