I’m planning to build a V3.1 rotator & controller. I found the parts list and I’m working on finding suppliers. I’m currently in Mesa AZ USA, but we will be heading back to Invermere BC Canada in 2 months, so I’m wary of ordering things from China because the shipping might take longer than 2 months.
Where can I order the 40mm x 1.5mm 6063 aluminum tube? I have tried numerous places (Amazon, Ebay, Aliexpress, and others). The closest I could find was 40mm x 2mm x 600mm for US$19, with free shipping in USA. Is that the right ballpark cost? Are there any European sellers that I should check? Also, who sells the 40mm U bolts? or can I just use an Imperial size and bend to fit?
For the T-slot corner connectors, I found these:
They look right, but the unit cost ($0.32) seems ridiculously low; everywhere else they are about a buck each. Also, delivery is estimated at 40 days, so I really need to know if they will work.
From the same supplier as 2) I found a bag of 100 nuts for $7.14. Also seems too good to be true.
Is it the right part?
For all the 3D printed parts, I plan to print them myself. Are there any tips or guidelines or words of experience?
The worm gear says to use an acetone vapor bath to smooth the part. How difficult is that? Is it better to just buy the Shapeway part? What is the cost for the Shapeway part?
Thanks for any advice.