Rambo Cover/Electrical Printed Parts Material
 
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Caskeid
(@caskeid)
New Member
Rambo Cover/Electrical Printed Parts Material

Hi there,

I recently built my Prusa i3 MK2 kit, and so far it's been going really well. One issue I'm seeing however is that the Rambo cover/case doesn't seem to be threaded properly, so I can't use the 40mm screw to close it. I was hoping to print a new version, but noticed that the material used was clearly different from the other parts, and didn't seem like it was ABS (at first glance seems to be PETG?).

Anyway, I was hoping I could get an answer as to which material was used to print out the electronics-related parts of the kit, including the Rambo case and power supply mount. I have some black PETG around so was hoping that would do the trick. Thanks in advance!

--Casey

Veröffentlicht : 25/02/2017 8:12 am
JoanTabb
(@joantabb)
Veteran Member Moderator
Re: Rambo Cover/Electrical Printed Parts Material

doesn't the 40mm screw use a captive nut

regards Joan

I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK

Veröffentlicht : 25/02/2017 10:40 am
Caskeid
(@caskeid)
New Member
Themenstarter answered:
Re: Rambo Cover/Electrical Printed Parts Material

It totally does! I guess I missed it at that step in the manual, thanks. That said, it oddly seems to indicate you should use a normal hex nut instead of the included square nut on the step 8 box/illustration ( says to use 5x m3n nuts) - might be worth changing that.

Would still love to hear the material if anyone knows. I'm considering modifying it to add a raspberry pi holder or sometime in the future :).

Veröffentlicht : 25/02/2017 8:46 pm
StephanK
(@stephank)
Reputable Member
Re: Rambo Cover/Electrical Printed Parts Material

Rambo cover is PETG, yes..
Orange parts are ABS

Veröffentlicht : 25/02/2017 8:59 pm
gabriele.s2
(@gabriele-s2)
Estimable Member
Re: Rambo Cover/Electrical Printed Parts Material

Any particular reason to use PETG there? Does the RAMBO board get particularly hot?

- Gab

Veröffentlicht : 26/02/2017 12:05 am
StephanK
(@stephank)
Reputable Member
Re: Rambo Cover/Electrical Printed Parts Material

Last i heard was that supposedly Josef Prusa himself said even PLA would be OK for the MK2 parts.

Never tried to to prove/disprove this.

I did reprint my Rambo lid in PLA no problems there, but i am still using the "original" PETG bottom part of the cover.

Veröffentlicht : 26/02/2017 12:40 am
Caskeid
(@caskeid)
New Member
Themenstarter answered:
Re: Rambo Cover/Electrical Printed Parts Material

I actually think it's due to flexibility. When I was messing around with the hinges and trying to get the cover closed I definitely flexed the case a bit. I'm not 100% sure PETG is more flexible, but it did feel the ABS printed parts were a bit more rigid.

Veröffentlicht : 01/03/2017 7:17 am
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