UPBOX Hardware problems / teardown.

Support for UP BOX and UP BOX+. To report a bug, post with a title [BUG REPORT]. To request a feature, post with a title [FEATURE REQUEST]
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Owen Sparks aka Marksman
Posts: 610
Joined: Tue Mar 15, 2016 9:56 am

UPBOX Hardware problems / teardown.

Post by Owen Sparks aka Marksman » Tue Apr 25, 2017 10:18 am

Hi guys.

I'm having loads of problems with my printer that is being dealt with via the retailer.

I thought I'd detail some things I found here just in case it helps anyone with similar problems.

Initial problems were huge layer shifts, and layers hanging loose of the sides of prints. Huge mess.
Initial fault.jpg
Initial fault.jpg (1.24 MiB) Viewed 4719 times
(1) A lot of this was down to the magnets in the head carriage. They'd become so weak you could poke the head off with the smallest prod of a little finger. The head was simply shaking loose. After 1 week we had 2 out of 3 magnets replaced with 2nd hand ones and after 5 weeks we had some new magnets :roll: We're told TT have never seen this before. But all 6 of our magnets had become really weak. Anyone else seen this?
Head retention is now better. Print quality is improved. (No stringing on the sides or vertical walls not atached to the in-fill as before.) However prints only work if rotated 45deg. If straight still layer shifts. Pulley marks line up.

With magnets replaced:-
IMG_20170420_094824123.jpg
IMG_20170420_094824123.jpg (849.11 KiB) Viewed 4719 times
Here is the single 1.7mm layer shift:-
IMG_20170420_072707155.jpg
IMG_20170420_072707155.jpg (1.19 MiB) Viewed 4719 times

So we now know the shift is in the front to back direction. I believe this is termed "y" for this machine.

(2) The outer pulley marks on the long shaft still line up so needed to go deeper.
That leaves the inner pulley (On the long shaft that the belt to the stepper is on and the actual sprocket on the stepper. Note the first has a mark on the pulley but then has a 3D printed part next that. There is no second mark but it looks like the join of the 2 printed parts lines up with the balck mark.

Now for the bad stuff. And there is a lot of it.

(3) Black residue surrounding this area, and the stepper.
IMG_20170424_153255421.jpg
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IMG_20170424_153324270.jpg
IMG_20170424_153324270.jpg (949.47 KiB) Viewed 4719 times
It's not obvious to me what the source is. Belt looks OK. Could it be coming out of the stepper itself?

(4) A screw had fallen out from the metal frame corner bracket.

(5) This is the same screw on the other side. Well on the way to falling out too.
IMG_20170424_153930883.jpg
IMG_20170424_153930883.jpg (833.33 KiB) Viewed 4719 times
image

Others are loose. Competent assembly would call for a spring washer or loctite. Neither is used.

(6) This is worse.
IMG_20170424_150119330.jpg
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image
This screw is cross-threaded, and not even close to being seated.

(7) Crack in the bearing holder on the underside of the carriage. Wide enough to get a scalpel blade into and spanning half the block. We have a 2nd UPBox that has already been back as the carriage shattered into bits during a print. After much back and forth TT China told TT UK that you can't in fact fit the new UPBOX+ head to the original UPBOX after all...
IMG_20170424_153835699.jpg
IMG_20170424_153835699.jpg (987.56 KiB) Viewed 4719 times
image

(8) The LED's were a mix of white, red, green, blue and off? Well this might explain it:-
IMG_20170424_165811755.jpg
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IMG_20170424_165840534.jpg
IMG_20170424_165840534.jpg (920.58 KiB) Viewed 4719 times
As you can imagine we're not impressed. Most of this was hidden behind plastic covers so we urge you to check your machines.

Owen S.
Attachments
IMG_20170425_075247015_HDR.jpg
IMG_20170425_075247015_HDR.jpg (982.26 KiB) Viewed 4719 times

Owen Sparks aka Marksman
Posts: 610
Joined: Tue Mar 15, 2016 9:56 am

Re: UPBOX Hardware problems / teardown.

Post by Owen Sparks aka Marksman » Wed Apr 26, 2017 12:15 pm

Printer delivered to Up support 11 am this morning so hopefully all will be good again soon.

Owen S.

Owen Sparks aka Marksman
Posts: 610
Joined: Tue Mar 15, 2016 9:56 am

Re: UPBOX Hardware problems / teardown.

Post by Owen Sparks aka Marksman » Thu May 11, 2017 11:22 am

Quick update.

Well TT support did replace all these bits, extensively test it and send it back. On the very first print immediately there was a new fault, so we've returned the printer to the vendor who have diagnosed a faulty main PCB (one of the parts just replaced).

Creat3d (the vendor) have been very helpful and friendly throughout and have worked with TT support who actually "repaired" the machine, but it's now been over 9 weeks without printing.

We've agreed to one more 7 day attempt to repair (with new parts only) otherwise a replacement or refund.

The other broken UPBOX is also awaiting parts.

Hopefully the next update will be happier

Cheers,

Owen S.

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