How would YOU go about this job.

[Parlo]

Quick question. Would HDPE do,because I have some on hand?

Anything is better than the balls rubbing together. I make linear slides and use polypropylene, it's cheap, durable and the sheet thickness is within a tolerance I can work around. I pitch the balls at 1.5 diameter but would go bigger if I had the room. Piercing the holes gives the cleanest result, I have +0.2mm on diameter, again I would go bigger if I could.

 

[Suzuki4evr]

I check now and it is infact delrin Acetal,I thought it was HDPE.

but you might want to touch it up with a fine sandpaper a bit by hand to take any high spots off.

I was planning on doing that yes.

 

[motormech1]

Anything is better than the balls rubbing together.

I hear you brother!

 

[Suzuki4evr]

I hear you brother!

Only just now saw the sentence

 

[Suzuki4evr]

I finnished the job using my new rotary table 2.0. I had to make the adaptor plate for this occasion, but now I have a new toy.


The top part was soft cast iron,because it was warn through the hardened layer,but the bottom part was hard as rock and ruined the new ballnose cutter,but I eventually got the job done. The pics below are the hard and pitted bottom section.

This is the soft one and came out very nice. I reccomend to the client that it must be re hardened.

I made the ring out of Acetal (delrin) 3mm thick,to keep the balls from rubbing on eachother . It came out good I think.



Thanks for viewing and all advice.

Michael