Does anyone know if these will work on a printrbot metal plus? People are getting great results with the round drylin
bearings on wanhao printers and I would like to give these a shot.
http://www.igus.com/wpck/3555/drylin_t
I mean…you have a 3D printer. There’s not really anything that won’t work if you design correctly.
True. You can certainly hack that sucker! Retrofits are welcome. Don’t expect a quality increase though.
We are moving to all linear rails on the simple v2… The added rigidity of linear movement instead of the possible twist of round bearings is nice. The real benefit of going from round bars to linear rails is in ease of design, part reduction and easier manufacturing.
$35 per carriage and $65/m for the rail. I think the available rail sizes aren’t the kind that match what’s on the machine so you’d have to make changes that I don’t think should be necessary, and given my previous experience with Igus rails, don’t match the square rail systems. The reason why they help the WanHaos is because the stock bearings weren’t that good to start with.
Ok. So is there any bearing cartridges that fit the printrbot rails that are superior to the the stock ones? I been experiencing layer shift in the “Y” axis off an on for about 6 months. I’ve modified the jerk settings, adjusted motor voltage, lubed the rails, adjusted the belt, checked the pulleys and slowed the speed to a crawl but on some models it still happens. I’m almost out of ideas. I plan on changing bearing cartridges and if that doesn’t work the “Y” axis stepper motor.
@Christopher_Seward - how’s the cooling on the Printrboard? If it’s layer shifting and you’ve been through all that, the only thing I can think of is an overheating stepper driver.
@Christopher_Seward does it happen without heated bed on (pla)?
Before you do the following, make sure your carriages are adequately tight. One is actually secured w springs- just visually inspect that one it should be fine. But loosen both carriages on the other side, move the axis then finger tighten both… Check movement again, then tighten one carriage down, check. Then tighten other carriage down, check.
We are eliminating issues here.
To release tension on rails, loosen all rail screws and try moving Y axis… Should be buttery.
Tighten one screw on each rail on the front end and move y axis back and forth again to feel difference. Try to feel any binding.
Now tighten one screw on each rail in the other end. Move y axis to ensure all is well. If satisfied w smooth motion, tighten all screws finger tight. Check by moving axis. Finally, Tighten one screw at a time double checking.
It’s a very methodical approach but when troubleshooting, a slow, methodical approach with constant testing to see if anything changes will eventually reveal the problem.
Btw- only use Teflon lubricants on rails and wipe any excess lube off after you run it back and forth a bunch to work the oil into the bearings.
Good luck!
Brook
@Brook_Drumm I certainly will try that process of elimination. I don’t normally print in PLA but I will give it a shot and report back. When it’s cool the bed seems to move smoothly. I might not call it buttery but as smooth as my other printers. Thanks for the help.