Well, I guess I'm going to bite the bullet and purchase ball screws for my tri-power. Because I'm new to machining, can anyone out there in CNC land tell me the best place to purchase these for all the axis? Shopmaster wants $799 for all three and C&G research which states zero backlash wants over $1200 for all three axis. I want to eliminate backlash as much as possible.
I also have a shopmaster and have the cnc setup straight for shop master and I have been able to make about anything that I have needed and I don't intend to cut down the machine, for what it is intended, it does well. BUT I would recomment spending the extra $400 and getting the zero backlash setup. I heard through maybe Dan M. at Camtronics that someone has a ShopMaster and has increased the table length. If a little more Y axis is appealing, you may want to find out about this before you proceed. But go ahead and get the most percission that you can.
How did you do your extentions? Is this already in a thread from days gone by. I would be interested is having 8 extra inches of travel my self. If it is possible , I love to se a couple of pic's.
Looking at the first picture, it reminds me of a scene from a movie "BladeRunner" where a lasor went wild during a high tech surgery. What exactly is going on in the first pic? With the VDF, it sure cleans out the cabinet. I like the extentions on the table, I would have trouble aligning the new section of dove tail with the existing dovetail on the table. But do the new sections of dovetail actually reach the gib ?
Let me ask a rookie question, What can you do with a power tailstock? Looks like you have added extra bracing to it also.
The first picture is an articulating 4th and 5th axis head. It rotates about the B and C axis. This unit was used when I got it, but have seen turbine blades that it produced.
Dovetail lines up perfectly. Once they are aligned it stays that way. And, yes, they do reach the gibbs.
With a CNC tailstock it makes it really easy for boring and internal threading. Mainly used with a drill bit. It can deep bore while you are doing something else. Feed rate is about 1 ipm with a tailstock and deep boring. You can also set up a peck cycle for it.