3 Axis CNC router

[JoeHarris]

That's most likely to be alignment issue not sticky seals. To be honest I've fitted 100's ballscrews and never had sticky seal on the ballnut(presume you mean ballnut seal)

Now what can happen is often the spacers on the BK bearings are not long enough and the seal in BK bearing can rub on the screw.
This tends to happen mostly on cheap BK bearings. Also on cheap BK bearings, like what Chai Sells, the bearings are not always shimmed correctly or even in wrong way round so when tightening the nut they will bind.

Joe If BK's came from Fred at BST then you can tighten them fully and they won't bind. Fred BK bearings are light years better than Chai's.

My Hiwins came from Fred but ballscrews and bk/bf bearings from chai.... not wild about taking them apart especially now!

[Desertboy]

I hadn't squared the gantry up at this point so very possible it was alignment, if would be about the same time. It has taken me ages to get dual homing working.

Hmm interesting with the bearings will have a look, I have a spare BK12/BF12 fitting to strip down. But will make sure I buy my bearings from Fred next time I keep seeing his name mentioned.

[Clive S]

It has taken me ages to get dual homing working.

If you have this now working with 2.8 master would you mind posting the hal & ini files.

[Desertboy]

If you have this now working with 2.8 master would you mind posting the hal & ini files.

Will do, not at work today but will go in to play in a bit I'll post them up then.

I almost went loony toons setting it up lol.