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Avatar of Mitchell Lichtenberg
Mitchell Lichtenberg
@mitchell-lichtenberg
Eminent Member
Joined: Jul 8, 2025
Last seen: Jul 14, 2025
Topics: 1 / Replies: 25
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RE: AR2 from Italy

Hi Alessandro, Wow, you're going to make the parts yourself! Please post pictures of your setups; I looked into this and studied the type of fix...

11 months ago
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RE: Mitch's AR2 Build Log

Yeah, I'm very pleased with how it came out. It was a great excuse for me to go meet the andodizers; they sponsor our FIRST team (we anodize most of t...

11 months ago
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RE: Mitch's AR2 Build Log

I think the color scheme is going to work :-) I have access to a laser cutter, so I might cut the flat covers out of translucent green or solid ...

11 months ago
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RE: Mitch's AR2 Build Log

More printing underway tonight, attempting to print both J5 side spacers at the same time, we'll see what happens. Meanwhile I have cut the flat...

11 months ago
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RE: Mitch's AR2 Build Log

Hmm. Looks like I won’t be able to heat the material to get the bearings to fit. Heating anodized aluminum will cause the finish to crack since the co...

11 months ago
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RE: Mitch's AR2 Build Log

Looks like, at least for my aluminum kit, the hole for the cut-off square head M8 screw is not tapped in the J1 Platform part. You might want to...

11 months ago
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RE: Mitch's AR2 Build Log

Happy New Year All! I'm making good progress on my build; after a little research and some experimentation with some other anodized parts, I tri...

11 months ago
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RE: Mitch's AR2 Build Log

Assembly has been smooth so far .... Actobotics timing pulley installed Starting to look like a robot!

11 months ago
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RE: Mitch's AR2 Build Log

The J2 spindle is putting up a fight to get the 30206 bearing onto it. Trying a more extreme temperature difference, but I may need to throw it on the...

11 months ago
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RE: Mitch's AR2 Build Log

Wow, that J2 spindle is a real troublemaker! :-). I turned it down in the lathe, then found out that the non-flange end is not tapped for M3. Yo...

11 months ago
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RE: Mitch's AR2 Build Log

Greetings Chris, It's possible that the anodizing killed the threads, but it didn't affect any of the the other M3s there. Andoizing does add th...

11 months ago
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RE: Mitch's AR2 Build Log

Final status report for New Year's day: I believe I have finally won my battle with J2 Spindle, I was able to get it mounted on the lathe and ce...

11 months ago
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RE: Mitch's AR2 Build Log

Here in the Silcon Valley (South SF Bay) I paid $120 to have 24 pieces anodized. It was the minimum charge from the vendor, mostly to cover the setup ...

11 months ago
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RE: Mitch's AR2 Build Log

Couple of things for the next manual update: - (pg47) : My keyed shaft is 50.24mm long, so it is a little hard to cut down to 53mm. I think that...

11 months ago
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RE: Mitch's AR2 Build Log

Absolutely no need to apologize fore anything; part of the "open source" bit means we get to contribute too! I'll collect my notes and the places wher...

11 months ago
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