Print settings for Mk2 parts.
I have to reprint several parts for my Mk2 build, (I know Josef has said that several of the printed parts were out of tolerance on the first batch or two shipped. which has since been corrected)
Unfortunately i seem to have one of those kits, The X-axis pieces in particular have some difficulties. The linear bearings are impossible to get in at all. and the square nuts do not fit into the holes (holes way to small)
Thankfully i can reprint the needed parts and get me back to building in a few hours. Just would like to use the same settings used by the factory if it all possible 😀 Anyway you guys can tell me the info? ( shells, infill, material , etc. )
Re: Print settings for Mk2 parts.
Posting pictures for reference
As you can see the whole for the square nut is to small (not the worst problem i could fix with a little shaving.
But the spot where the bearing goes is just WAY to small. It would not go in with even ALOT of force. (the slot were the gap was was originally not there, i cut the gap open with a exacto knife to try to open it up a little. (see picture of the other side of the X -axis to see what im talking about.
Re: Print settings for Mk2 parts.
Erron
Don't know what PR use for printing, but I have printed replacement parts in PLA @ 0.2mm, 3 loops and 16.6% infill (octagonal or round).
When I have printed the parts I try to get the perimeter printed first as this ensures accurate sizing - but you can't always do this on parts with overhangs.
Peter
Please note: I do not have any affiliation with Prusa Research. Any advices given are offered in good faith. It is your responsibility to ensure that by following my advice you do not suffer or cause injury, damage…
Re: Print settings for Mk2 parts.
Erron
Don't know what PR use for printing, but I have printed replacement parts in PLA @ 0.2mm, 3 loops and 16.6% infill (octagonal or round).
When I have printed the parts I try to get the perimeter printed first as this ensures accurate sizing - but you can't always do this on parts with overhangs.
Peter
Yea, cracking one the peices apart (i have to reprint it anyway :P) it looks like around 20ish % infill, and 3 layers. id still like to get the offical word 😛 but i may just start reprinting them now. Im impatient.
Havent had any problems with using PLA vs ABS PJR?
Re: Print settings for Mk2 parts.
Havent had any problems with using PLA vs ABS PJR?
Nah. Josef mentioned a while back that PLA could be used for all printed parts
Peter
Please note: I do not have any affiliation with Prusa Research. Any advices given are offered in good faith. It is your responsibility to ensure that by following my advice you do not suffer or cause injury, damage…
Re: Print settings for Mk2 parts.
I am contrite. Yes PLA is Ok in normal circumstances for Prusa 3D parts. I apologise to Peter. I was wrong.
ABS will be abandoned soon as Josef suggests. Ngen FTW. I have used it in the past on my 3mm printers. I have just got hold of a 1.75mm Ngen 2KG spool from ColorFabb in grey. For my Prusa. Currently rolling on my Hobbyling Fabrikator large. It has a spool holder that can accommodate the large 2KG spool.
Getting the settings right with replacement parts or starting from scratch is the key with PLA.
Nigel
Life is keeping interested and excited by knowledge and new things.
Re: Print settings for Mk2 parts.
I had the same problem (glad it was just not me), I had pry open bearing holder with a plastic tool so that I could get the bearing in. Also had to hand cut some of the nut holders to get them to fit in also....
The printer does work now, with a couple of issues...
Re: Print settings for Mk2 parts.
Yeah, seems to be all fixed now. My kit was shipped out last Wednesday and arrived today. All sorted and printing perfectly. Except the pre-sliced files on the SD card are the previous release which cause the printer to calibrate twice before a print.
Peter
Please note: I do not have any affiliation with Prusa Research. Any advices given are offered in good faith. It is your responsibility to ensure that by following my advice you do not suffer or cause injury, damage…
Re: Print settings for Mk2 parts.
Hi Erron,
For the x-axis piece, the top side is slightly conical. Once all the perimeter of the bearing is inside the location, you can push it using the palm of your hand. Once this side is done, the other side is more easy, the first bearing having enlarged the hole.
I had an issue with the extruder body, the nozzle didn't fit well and I pulled off the square bolt, breaking the piece apart. I reprint it with ABS, using 200 nm, 5 perimeters layer (probably overkill) and 25% infill.
I'm like Jon Snow, I know nothing.
Re: Print settings for Mk2 parts.
Hi Erron,
For the x-axis piece, the top side is slightly conical. Once all the perimeter of the bearing is inside the location, you can push it using the palm of your hand. Once this side is done, the other side is more easy, the first bearing having enlarged the hole.
I had an issue with the extruder body, the nozzle didn't fit well and I pulled off the square bolt, breaking the piece apart. I reprint it with ABS, using 200 nm, 5 perimeters layer (probably overkill) and 25% infill.
Extruder parts should be the only parts where ABS is still recommended. PLA should be fine for any other piece.
I'm like Jon Snow, I know nothing.
Re: Print settings for Mk2 parts.
Hi Erron,
For the x-axis piece, the top side is slightly conical. Once all the perimeter of the bearing is inside the location, you can push it using the palm of your hand. Once this side is done, the other side is more easy, the first bearing having enlarged the hole.
I had an issue with the extruder body, the nozzle didn't fit well and I pulled off the square bolt, breaking the piece apart. I reprint it with ABS, using 200 nm, 5 perimeters layer (probably overkill) and 25% infill.
oh trust me , it had to be reprinted 😛
I was able to get all sides in, but it would not insert any more.. even with putting all my weight into it 🙂
no worries, though i have it all setup now
Re: Print settings for Mk2 parts.
Are the parts in the MK2 kit printed from ABS or PLA? I'm planning on purchasing a spool of filament of the "Safety Orange" color in case I ever need to repair or upgrade parts, but I see that colour is available on both PLA and ABS.
Re: Print settings for Mk2 parts.
Hi,
parts are printed from ABS. Some parts are printed from black PETG (rambo cover, PSU cover, YtoPSU part, LCD wire holders, etc.).
(info based on parts in my kit)
Re: Print settings for Mk2 parts.
Thanks for the reply - I've never printed with PETG before, is it stronger than PLA/ABS?
Re: Print settings for Mk2 parts.
where are you getting parts from my extruder motor side broke when building and need to print one.
the only one i can find does not have the sensor bit on it
Re: Print settings for Mk2 parts.
where are you getting parts from my extruder motor side broke when building and need to print one.
the only one i can find does not have the sensor bit on it
https://github.com/prusa3d/Orignal-Prusa-i3/tree/MK2/Printed-Parts/stl
//Anders
Re: Print settings for Mk2 parts.
thankyou very much. stupid question time......how do i download to print 😳
Re: Print settings for Mk2 parts.
thankyou very much. stupid question time......how do i download to print 😳
https://github.com/prusa3d/Orignal-Prusa-i3/archive/MK2.zip
Re: Print settings for Mk2 parts.
david
thank you very much
Re: Print settings for Mk2 parts.
Is it okay to print extruder parts of out PETG?