Quote Originally Posted by Jonathan View Post
I can machine the ballscrew as you've drawn it for £15 plus postage.
Wow, cool Jonathan. Can't go wrong with that. Thanks!

Quote Originally Posted by Robin Hewitt View Post
www.bellevillesprings.com pn: D2812215

You are welcome to half a dozen, just shout.
Robin, yes please, need those.

Quote Originally Posted by Robin Hewitt View Post
suggest you put a thread and one bearing at either end.
Made another draft of X-axis screw. Please is this any good now?
- added a thread to the other end. And also a similar "structure, a fixed mount" for the ballscrew. So there are now two such mounts, one at either end of the screw.
- there are two (2) screws in picture below, but it is the same one single screw.
-- The other one just highlights, what components would fit, and where. Like hand-wheel, pulley, shims, Belleville washers.

Click image for larger version. 

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Not sure about the dynamics, kind of figured out, that with this setup, the Belleville -washers + half nuts at either end of the screw ---> would tension the screw sort of around either end fixed mounts. Please correct if you think one has mis-understood the principle.


Quote Originally Posted by Gary View Post
This is the link to the datasheet for the FDI and FDU type ballnuts and it is 34mm between the flats, so it is actually 6mm difference.
http://www.zappautomation.co.uk%2Fpdf%2FBallscrews%2FFDU-FDI.pdf

Gary, the 34mm height ballnut gets me off the hook. Thanks for pointing out these alternatives. Will speak to you about other components.


Thanks!