Just how good are printed linear bearings?
Posted by epicepee
|
Just how good are printed linear bearings? April 17, 2015 12:23PM |
Registered: 12 years ago Posts: 471 |
|
Re: Just how good are printed linear bearings? April 17, 2015 12:55PM |
Registered: 11 years ago Posts: 1,401 |
If you design them yourself and take the time to get them right, they are as good as an standard LM8UU, life span is shorter and will depend on material and amount of use.
One of my printers is a CTC replicator and I redesigned to use nylon printed bushings, you can find it on thingiverse.
I'm working on a split design for easy of replacement.
One thing you will love about them is their quiet and smooth operation.
One of my printers is a CTC replicator and I redesigned to use nylon printed bushings, you can find it on thingiverse.
I'm working on a split design for easy of replacement.
One thing you will love about them is their quiet and smooth operation.
|
Re: Just how good are printed linear bearings? April 18, 2015 09:08PM |
Registered: 13 years ago Posts: 253 |
|
Re: Just how good are printed linear bearings? April 20, 2015 11:48AM |
Registered: 11 years ago Posts: 469 |
I have been contemplating running printed bearings on alu and copper piping. I am thinking about a design that uses grease entrapment to glide. One thing I can say is that no matter how acurate your printer is, you will been some finishing on the 3d printed parts if you want to get that extra 100micron out of them.
My Personal Blog. Build blog.
[engineerd3d.ddns.net]
Modicum V1 sold on e-bay user jaguarking11
My Personal Blog. Build blog.
[engineerd3d.ddns.net]
Modicum V1 sold on e-bay user jaguarking11
|
Re: Just how good are printed linear bearings? April 21, 2015 07:20PM |
Registered: 11 years ago Posts: 483 |
|
Re: Just how good are printed linear bearings? April 21, 2015 07:29PM |
Registered: 12 years ago Posts: 471 |
|
Re: Just how good are printed linear bearings? April 21, 2015 07:31PM |
Registered: 12 years ago Posts: 76 |
|
Re: Just how good are printed linear bearings? April 21, 2015 08:21PM |
Registered: 12 years ago Posts: 553 |
I designed a linear slide for aluminum extrusion that used pieces of PTFE tubing as a bearing surface. Worked great once it was dialed in.
Here's a pic of the x carriage on the printer.
greghoge.com
HUGE 3D PRINTER PARTS SALE!!!
Here's a pic of the x carriage on the printer.
greghoge.com
HUGE 3D PRINTER PARTS SALE!!!
|
Re: Just how good are printed linear bearings? April 21, 2015 08:54PM |
Registered: 11 years ago Posts: 483 |
Quote
epicepee
etfrench, how much force can those take?
Probably a lot more than a 3d printer will generate
I know of at least one benchtop mill (bigger than a mini-mill) that uses PTFE bearings encased in a metal sleeve. I'm using PTFE tubing in a custom camera slider and it has been working nicely. It doesn't have any trouble making movements under 5 microns. PTFE can flow over time if it isn't encased in something, so your design should take this into account.I should mention that PTFE plumbers tape probably won't work.
|
Re: Just how good are printed linear bearings? December 07, 2019 07:23PM |
Registered: 5 years ago Posts: 2 |
|
Re: Just how good are printed linear bearings? December 08, 2019 12:58AM |
Registered: 13 years ago Posts: 5,801 |
Have you considered just drilling a hole in a block of PTFE? One cut with a saw can make the bearing adjustable. PTFE is pretty cheap (cheaper than filament) if you shop carefully.
Ultra MegaMax Dominator 3D printer: [drmrehorst.blogspot.com]
Ultra MegaMax Dominator 3D printer: [drmrehorst.blogspot.com]
|
Re: Just how good are printed linear bearings? December 10, 2019 04:50PM |
Registered: 11 years ago Posts: 483 |
Sorry, only registered users may post in this forum.