Printed Extruder Motor Mount Broke

[ProjectBox]

Greetings,

Below is a video I made about it but what I really want to know if this has happened to anyone else. I found out that my last print was ruined and when I went to investigate I saw that my Printed Extruder Motor Mount was broken. I have no idea what happened.

https://www.youtube.com/watch?v=L6-q1So ... 84umnuwRWQ

Any ideas?

Luckily it looks like my zip ties are working.

[jsc]

That has happened to several people on the forum.

If you have ABS filament and epoxy, you can try to glue up your broken mount to the point where you can print yourself a new one, preferably with a high infill.

Otherwise, apply to MakerGear support for a replacement.

[jimc]

as jin said just hold it together long enough to print a new one. here is one for you. i think this is the stock makergear one without that hole. it likes to break right at the hole. all the printed parts on the m2 should be done in abs at a high infill. in anycase, its not uncommon. its a printed part...$hit happens. i would suggest you get on makergear's github and download all the printed part files and print a spare of everything to have on hand so your not screwed next time something fails. i dont have the github link. perhaps jin has it.

http://www.thingiverse.com/thing:354424

[jsc]

https://github.com/MakerGear/M2/tree/ma ... 0Parts/STL

[Tim]

I'm one of those people who had that happen to me. I glued my motor mount back together with 2-part epoxy, and I even used it that way for several months. Eventually it cracked in another place, and it was a bit of work to get a replacement part printed at that point. So, yes, glue it together and print a replacement as soon as you can. Both ABS and PET+ seem to be good choices for material to print the motor mount with. I used PET+. I had serious problems trying to print PET+ at very high infill density and had to dial it back a bit, I think to 70%, but that's still higher than the original was printed with.

By the way, there is a hole in the motor mount that is possibly meant to make it easier to get a hex driver to reach the screws at the bottom. I found that to be a weak point; that's where my motor mount cracked. I've seen one version of the motor mount that didn't have the hole, and I printed that for my replacement. Although the second time my motor mount cracked, it was at the bottom and had nothing to do with the hole.

[jdacal]

I had this happen today. Broke near the hole. Unfortunately I had not printed replacements yet since I'd heard so many horror stories about ABS I was trying to get my practice on PLA first. Didn't think it would go out so soon, about 20 hours of run time I guess it had on it.

Anyway, what to do! I removed the motor, put blue Loc-Tite around the area that the motor mount contacts. Put two super tight ty-wraps around the mount, then used a Craftsman Micro Clamp on it. The clamp is pretty light weight (all plastic except for the aluminum fingers and shaft, so it doesn't seem to be a big load to the belt motor, and gets a good grip with its rubber boots on. Its currently printing what appears to be a flawless motor mount (thanks to the rsilvers FFF file). The clamp by itself probably would have been enough, but I remembered I had purchased it after already putting on the Loc-Tite. Here's the picture with the clamp on, I'll add a picture of the finished product (if it finishes :

2014-08-03 21.01.36_1.jpg (188.45 KiB) Viewed 11210 times

[Capt. John]

rsilver's abs S3D file works great if you do not alter it in anyway, especially the infill.