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MTO

Prusa Air 2 Production file

by MTO Dec 20, 2011
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I agree on the slots and wondered why Mecano did it this way, couldn't it be the other way up so that it holds itself together without the squads?

Ray :)

Wow very beautiful!!

how has gone the assembly? Are there strong the joints?

Yes, the red is gorgeous! I am so pleased!

I haven't had a chance to print the rest of the parts yet, so I haven't done anything else but I can think of 3 improvements:

1) the back piece is sort of weird. It locks in place when it slides up, but gravity pulls it down, so assembly is a bit fiddly. It felt like I needed 3 hands, until it oc
curred to me to assemble it upside down, but then it sometimes falls apart when you flip it...
2) all the joints are at right angles, so you could use T-slot connections (see http://wiki.makerbot.com/thingomatic-doc:about-nuts-and-boltshttp://wiki.makerbot.com/thing... for an example)
3) The hook bits on the bottom of the back piec
e are the weakest point. It was surprisingly easy to break one of them off. Acrylic is pretty easy to repair, luckily, and it seems to hold together OK with the broken part.

I've been thinking of trying to convert it all to t-slot and eliminate the hooks. I think that would make the whole structure
more rigid, and I might be able to eliminate the threaded rods that go across the bottom if I replace them with a few more pieces. maybe. The hard part will be learning to use a CAD suitable for the purpose.

He knew the T-slot from MakerBot but didn't use it to simplify the list of parts, I don't think T-slot wiill be a fast and simple connection, for me it don't seem elegant. But the truth is that perfectly fulfills its mission. If you want I can make a version completely connected by T-slots for you.

T-slot connection would be a great design if the printed parts (Scuad 01.stl) is not aviable. :'(