Found a strange slide-assembly

[dar303]

I got given this: CDY1S15H-250 http://www.smc.nu/produkter/4_cylindrar/CDY1S.pdf

Pneumatic/magnetic slide assemly CDY1S15H-250

Is this of any use as it is or should i try to convert it to ballscrew/trade it for something?

[dar303]

ok, i found this thread http://www.cnczone.com/forums/showthread.php?t=17816
It pretty much explains it!

[Elnino]

Interestingly enough, this is almost EXACTLY what i am using for my Z axis. Mine is a 100mm travel item rather than your 250mm. Flex is almost non existent at this length.

Retail price on these things is HUGE - If you're going to sell it, keep it complete.

I converted mine to a threaded type using 2 brass 'plugs' with an internal thread which were then screwed away from each other to get rid of backlash.

They were held in with the original washer and circlip.

Also - they can be cut down if you need to....I done this with another one that i had before i found the 15mm one.

I'll attach a couple of pics for ya to see.

[dar303]

nice work!
I think i have a pair of SKF ballscrews and ballnuts in my partsdrawer, I only need someone brave enough to cut the ballscrew and turn the ends...