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Alevin · (This post was last modified: 08-23-2023 10:02 AM by Alevin.)

Hi.

After a couple of bad experiences with brass gears, I would like to tell you later, I go for the plastic replacement.

An 3d printed alternative is offered in

https://www.ebay.es/itm/294930335704?has...Sw3cRiAPTN

But aspect seems not very attractive (see pic attached)

I am planing to use RPZ publishsed 3D files to order to shapeways (or the RPZ kidnle offered home made units if still avaible). But some questions arises at this point.

After some years of experience form the last post? Is still the shapeways the fine plastic option the best one,

Has the shapeways 3d model a centered bore hole to drill to the proper size 2/32" or is a solid gear? If solid,the drill can cause a not centered bore hole. Furthermore the EU metric units in drills can also cause some fitting problems. I had to strugle with these issues in the bronze gears.

The 20" wide gear to cut in proper size may be attractive, but is it possible to simple use a XACTO blade to perform the cutting? or some specilized mini saw?

Thanks in advance for your clarifications