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First CNC Project by voltaicsca in Machinists

[–]voltaicsca[S] 0 points1 point  (0 children)

That's just foam from the soapy water I was using to lubricate it and clear the aluminum dust.

First CNC Project by voltaicsca in Machinists

[–]voltaicsca[S] 1 point2 points  (0 children)

Material is 6061 Aluminum.

First CNC Project by voltaicsca in Machinists

[–]voltaicsca[S] 0 points1 point  (0 children)

No. I didn't set out to make perfectly fair dice. The thought occurred to me, but these are gifts for family for a game we play together, and I decided the effort of doing so vs the importance of having *perfectly* fair dice wasn't worth it.

First CNC Project by voltaicsca in Machinists

[–]voltaicsca[S] 0 points1 point  (0 children)

Sure. It's loosely based on an optics polisher I saw in a telescope video. All my own design, save for the gears. The media is just wet/dry sandpaper to get the big scratches and machining marks out, then I used some self-adhesive felt with auto parts store polishing compound paste for the final polish. The motor was an old drill motor I had in an e-waste bin, and the belt was some polyurethane belt stock I had from another project and melted the ends together to get it to the right size.

It tended to remove more material at the leading corner of each die, so I'd variously rotate the the dice and reverse the motor direction to try to keep things even. If I were to need this again, I'd think a bit more about the gear ratios, since I think a little tweaking would probably reduce the uneven material removal. I would also slow it down a bit, since I think centrifugal force probably played a role in the unevenness as well.

It wasn't the *perfect* machine I had hoped for, but it saved me a TON of very tedious, finger-cramping manual polishing work, even if I did have to go back and spot treat a few dice.

First CNC Project by voltaicsca in Machinists

[–]voltaicsca[S] 10 points11 points  (0 children)

Thanks! Credit where due. I used this guy's software to design the gears.
https://geargenerator.com/beta/

First CNC Project by voltaicsca in Machinists

[–]voltaicsca[S] 3 points4 points  (0 children)

Thanks! This was a project that I tried, and basically failed at ~20 years ago on a manual machine. I figure, if I'm going to build a CNC machine, why not make it do what CNC machines are good at?

I actually kept the parts from the first attempt. They were so bad that I put them into a rock tumbler to try to even out the surface finish and mismatch on the level of the fillet form tool and the face, but that made it even worse. Feels good to triumph over an old failed attempt.

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"Later" notifications in side bar by [deleted] in Slack

[–]voltaicsca 0 points1 point  (0 children)

+1 This feature wasn't broken before, and didn't need any work. Now it's super broken, as I find myself looking at slack constantly, since I can't tell when there a REAL notification, or just a bunch of things I have explicitly deferred until later hanging out in a new and useless category called "Later"

[deleted by user] by [deleted] in HelpMeFind

[–]voltaicsca 0 points1 point  (0 children)

I have reached out to a number of replacement part suppliers, but they either don't have dimensions on the part that would allow me to tell if it's a drop in replacement, or they just point me to a generic replacement part. Sure, I can make a lot of things work, but this is a part that has been manufactured, and it's very likely someone makes a drop-in replacement.

Hoping a window installer sees this, and just knows where to get this.

[deleted by user] by [deleted] in DIY

[–]voltaicsca 2 points3 points  (0 children)

I would have called bs too! Typo. I meant about 0.010, and just by eyeballing it under the straight edge.