P.I.N.D.A. probe protector
Hi there.. I've tried to print the probe protector from the site. I've seen too late that must be printed in abs.. I may think is abs to cope with the print temperature once you assemble the protector..
Btw, I've used pla, setting up the temp with the live adjustment functionality, but even if the print was a success the part is waaay too large for the probe thread. Is it because abs tends to shrink when cooling down? May I print it with petg instead of abs? I prefer to avoid using ABS because the printer is in my living room and it smells too bad.
Cheers,
D
Re: P.I.N.D.A. probe protector
Hi Malo,
which version did you print, the one available from Prusa or my version from Thingiverse ?
If it's my version, you need to use a M8 screw or threaded pole and turn it inside the hole to make a thread, and then put it in place by screwing it (it's a bit tricky since it's hard to maintain the Pinda probe while screwing it).
However I would not recommend to print it with PLA, it's really close to the heater block and PLA glass transition temperature is pretty low, it will deform quickly. The Prusa version seems a bit smaller and maybe a little less sensitive, being a bit less close to the extruder.
I'm like Jon Snow, I know nothing.
Re: P.I.N.D.A. probe protector
So far, I've found ColorFabb HT as a good alternative to ABS. Similar temperatures and characteristics, but no foul smell.
and an 8 inch (200mm) or greater caliper is recommended.
Re: P.I.N.D.A. probe protector
Hello Christophe,
I downloaded the one i though official for mk2 ( http://www.prusa3d.com/prusa-i3-printable-parts/ ), didn't know there was one different on thingiverse.
It's quite strange because is narrower that the one in picture (which is yours, I think http://www.thingiverse.com/thing:1617374 ), and is already threaded. The stl looks different either than this http://www.thingiverse.com/thing:1657811 ) . I just put the gcode in the sdcard, reduced the temperature for the PLA and let it print. I'll attach a picture later
I realize that PLA wasn't good thinking about it after printing. But I'm just not fond of ABS, and i've Prusa PETG with me, which should be stable at higher temperatures.
But still.. Seems like the gcode is definitely wrong or there is something I'm missing, because the piece slips through the probe thread with a 1/2 mm tolerance. Could make sense if needs to be printed with ABS and that thing shrinks a lot when cooling down
Re: P.I.N.D.A. probe protector
Hi Malo,
Yes the first Thingiverse link is mine. Comparing to the PR official version, the central hole is a bit more narrow and need to be threaded using a screw or a threaded pole.
I never printed the official one (I made mine before it was available 😉 ) but I'm not sure how ABS shrink may explain such a size difference.
I'm like Jon Snow, I know nothing.
Re: P.I.N.D.A. probe protector
Official PINDA protector printed from ABS fits precisely. The hole is more narrow in bottom side, so the probing end of the probe fits there very tight. M8 thread is cut only half way inside.
Re: P.I.N.D.A. probe protector
Thank you david.t2 I've also printed at 0.2mm and maybe the threads didn't print really well. I'll give it a go 0.05 with petg and I'll let you know the results 😉
Re: P.I.N.D.A. probe protector
I had the same issue. Both, the posted STL and gcode, of the PINDA protector printed out way too large. I had to scale the STL down to 96% of the original size to get it to fit the PINDA thread nicely. I hope that helps someone trying to get this work until its fixed.
Re: P.I.N.D.A. probe protector
Ok, I just printed the protector in PETG scaled down to 96%. I must confess that it fits, but is more like an interference fit that a screw in fit.
Btw, seems ok 😉
Re: P.I.N.D.A. probe protector
Ok, I just printed the protector in PETG scaled down to 96%.
Thanks for that. I, too, printed it that way with PET+ and it fits much better than the ABS that I printed with the gcode Prusa supplied. Not only that but the temps in the gcode were too high and I had the devil of a time getting theirs off the bed.
Bill W
"Even old dogs can learn new tricks!"
Re: P.I.N.D.A. probe protector
I've printed the protector in ABS using the supplied GCODE file dropped directly into Octoprint.
It has printed way to large too fit the probe. The screw thread hole is a lot wider than the actual probe.
Re: P.I.N.D.A. probe protector
For anybody else that runs into this issue, ignore the official one from the Prusa site and download this one as an STL and slice it in Slic3r.
https://www.facebook.com/groups/Prusai3users/permalink/632559426928542/
Printed in ABS and the size is almost perfect (though this time a little tight).