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Originally Posted by
Sapele
Linearmotionbearings2008 does not have an option coarser than 10mm pitch. I did learn that he can provide 32mm diameter screws. I did not ask the price. The nook calculator and adjusting the length closer to my need produces
That is true but varies with the wood and other parameters. Frankly you can see this in most wood machining processes that are done manually. For example running Cherry through a table saw or other machine to slow will lead to burning. You can even see what happens with a handheld router if you go to slow in the material you are working on.
This does not seem fast compared to other peoples machines.
What you need to determine is the common feed rates for the materials you expect to work on. Note I said feed rates not rapid movement rates. Just be careful that the suggestions aren't for high performance industrial machines.
I was under the impression that most ball screw suppliers can build to print - for a price.
By the way, once you start talking about large diameter screws you really should be looking at the inertia to see if that will be a problem. Many of the solutions you see in the forums here are in a sense canned, that is the mechanical performance is well understood, once you start looking at solutions outside the norm you really need to consider doing the engineering to see if you have a workable solution.
Thanks for the link to Atlanta Drives. That integrated rail/rack is very elegant!
Interesting, I have to wonder about the cost though. You will also be looking at a servo for this axis but that might be the case anyway.