Ivan,
I have 20mm by 5mm pitch ball screws. Not sure on price as another from the group ordered the parts and I had several items ordered. Will try and get the place they were ordered from for you, somewhere in Asia.
Adam,
Nothing wrong with heading for the beer fridge, but I know what you mean. Are you in Perth? Drop me a PM if you want to get together. Not sure on your problem. I'd need to read the manuals on the different parts. What are you using for a BOB?
Mark |