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Protective PINDA Hat for Original Prusa i3 MK2 / MK2S

by TheChrisP, published

Protective PINDA Hat for Original Prusa i3 MK2 / MK2S by TheChrisP Jun 9, 2016


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/!\ /!\ /!\ Being very close to the heater block, use ABS or heat resistant material and DO NOT USE PLA. /!\ /!\ /!\

[EDIT 21/03/17]
Added MK2S version, as the new PINDA holder reduce the available room for the initial version.

[EDIT 05/01/17]
After 6 months, I just created a threaded version. The thread used by the PINDA probe seems to be a ISO M8.1, which is not the same as a M8 rode.
There are two versions, "Pinda-Hat-v2.1.stl" with a standard thread size, and "Pinda-Hat-v2.1 - bigthread.stl" with bigger thread if you have some ABS shrinking much while printing. I personnaly printed the 2.1 version with 0.20 profile and it fits perfectly, screw pretty easily but tighten enough for it to stay on place. Enjoy :)
[/EDIT 05/01/17]

I designed this protective cap for the pinda probe of original Prusa i3 mk2 printer.

This cap is made to avoid the probe to grab unsticked parts or other printing issue above the printed layer, and to make it slide under it.

The center is just the size needed to hold the M8 thread, so I used a threaded rod to make a thread in ABS. Once in place, the black part of the pinda does almost not overreach the central hole, to minimize chance to pull something. No additional space is used below it. It's several mm from the block heater, that's the part I'm not 100 % sure yet.
I used very low resolution (0.05 mm) in order to make it smooth and to be sure to minimize any friction possible.

Print Settings

Printer Brand:



Prusa i3 original MK2






0.20 mm


15 %


Print only using ABS or heat resistant material.

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Made for S, thanks!

Prints perfectly in ABS. Fits perfectly the pinda thread. Thanks! ;)
Now started first print and I think it melted a bit because it touches the screw on the extruder. Might be a good idea to make it a bit smaller.

Thanks for the report. What strange is that I do not have this issue on my mk2.

However I'll make a smaller version. Can you just tell me what distance you have between the protector and the hot part of the extruder ?

Print finished and I looked at it once again and more closely. It did not actually "melt". The ABS is not liquefied like PLA from that guy below my comment ;-) You just clearly see that it gets hot so the area is notched a bit but no tragedy. I think I'll just leave it like that.

Hi Chris,

Unfortunately your probe protector does melt as it is too big and to close to the hot end. Because of this it can damage prints because liquefied filament from the probe hat is drooling onto the bed.

See my make for details...

I remixed this PINDA protector and put it on my TinkerCAD page. I made it so that it has a 20mm diameter and tapers to try and remove any gap that may exist between the tip of the PINDA probe and the inside edge of the PINDA protector.

Hi Crunch3D,

thanks for the feedback.

But as stated in the description, "Being very close to the heater block, I strongly encourage to use ABS or heat resistant material and to avoid PLA"