SC8UU & SC10UU linear bearing blocks

Anyone here used these on a reprap? [www.aliexpress.com] looks like an easy carriage build and they aren't all that expensive.
Might have to design some x-ends to use them too.

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Richmond, New Zealand
Thingiverse ~ YouTube

At $2.75/piece (USD, qty 12) including shipping, they are a bit more expensive than Chinese LM8UU's. There's no reason you couldn't use them, especially for the Y axis. It would make for an easy Y axis build, and could work well with the Z axis too. The only issue with the X axis carriage is that the SC8UU's are fairly wide, which is going to limit space for the hotend. This may not be an issue with narrower hotends such as the J-Head, but could be problematic for the Acrol.hu type hotends, unless you made the carriage wider.

Edited 1 time(s). Last edit at 09/10/2012 03:45PM by NewPerfection.

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Yes I did eventually look them up on Aliexpress too and have saved a few options. They do look easy for the Y-axis but I'll probably stick with LM10UU's for the Z and LM8UU's for the X. Just wondering if anyone had used them before.

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Richmond, New Zealand
Thingiverse ~ YouTube

I am interested in SC10UU bearings...
Is there an advantage to using these bearings with an Aluminium framed i3 ?

I'm using graphite impregnated nylon bushes at the mo which have been successful. I do, however, like the idea of going the "LM" route but hear so many conflicting reports about them - dunno what to do to be honest

I have lm8uu

They are louder than bushes, as you have a number ball bearing moving in them. And you have to lubricate them.

Lm8uu also seem to have more movement in them. So its good if your machine is a fraction out, but bad as belt ringing is transfered to your print (this on is just my own thoughts of what seem to be happening.)

I've got some linear (ball) bearings on my delta at the moment and they are the noisest part of the machine by far. Go plastic!