Very nice work...!!!
SMF - Just Installed!
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Its a prototype, replace the arm with aluminium and throw some tapered needle bearings at the shafts and with 101mm pulley and 300mm arm length, my math says 0.1mm should be repeatable.
I like it has only 2 big joints, so throw a bit of money at them and non stretchy belts instead of on lots of rods and linear bearings.
It looks to be a very tidy and effective design Ralph and no loss of area.
My only concerns are:
1. The thread pitch looks to be very coarse so isn't backlash an issue? It would have been nice if they had used fine pitch threaded rod giving the tidy 1mm movement per rotation.
2. Also, what is the free play in the sliding plate like; is it enough to cause issues when the the dives accelerate?
No this is not a posted, separate part but you can order it if you want one.
I'm getting a URL link and price from them and will post it here for anyone who is interested in ordering it (I order a lot of laser parts and I cannot remember what I paid for it).