Re: [CAD_CAM_EDM_DRO] "Homemade moglice", ideas?!

I cast some bearings around some socket head shoulder screws this way...
They seemed to work OK, although it was a bit messy. The bearings ended
up being quite tight.

I used West Systems Epoxy (105/205) with 423 graphite powder,
and a MS122AD PTFE release agent. I tried several ratios
of graphite, and they all seemed to work pretty much the same.

I thought about also casting a zero backlash feednut, but I figured
that the natural small tolerances in the threads (I'm not using
a precision leadscrew) would result in too much binding.

HTH,
Mike

Jon Elson wrote:

> efraimbarkbit wrote:
>
>>What about making a batch out of: quality epoxy resin, graphite powder
>>and atomized (at least very fine!)PTFE? Any ideas on proportions etc.?
>>I can get all of the above within reasonable financial limits, and
>>could do a trial run of let's say 10 batches for making zerobacklash
>>feednuts. It should be possible to make something similar to
>>Mogliceputty (or injectable Moglice)
>
> Graphite can be quite abrasive, depends on how it is made.
> Moglice has Molybdenum diSulfide, not graphite, as the
> lubricating element.
>
> Jon
>