mk2 -> mk2s upgrade - pinda nut removal problem
 
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prusayo
(@prusayo)
Reputable Member
mk2 -> mk2s upgrade - pinda nut removal problem

I'm at the disassembly stage:
Step 8 Extruder disassembly (Part 1)
"Use pliers to release the nut holding P.I.N.D.A. sensor. Proceed carefully since this nut is glued!"

I used blue loctite. I don't see how it's possible to remove the nut since the probe rotates when I attempt to rotate nut. I tried using a razor to remove the loctite, what else can I do?

Posted : 26/05/2017 10:15 pm
PJR
 PJR
(@pjr)
Antient Member Moderator
Re: mk2 -> mk2s upgrade - pinda nut removal problem

You have my sympathy...

I have not glued any part unnecessarily, so I didn't suffer this issue. The only thing I can suggest to to hold the probe body with pliers and hope that the probe survives.

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…

Posted : 26/05/2017 10:51 pm
Nigel
(@nigel)
Honorable Member
Re: mk2 -> mk2s upgrade - pinda nut removal problem

Blue Loctite should be easily removed mechanically as said on many websites. You just need the right tools. A top and bottom spanner didn't work for me with my Blue Loctited Pinda probe nuts. Try using a heatgun. It worked for me. I borrowed the heatgun from my wife. She does crafts and I use it mostly for heatshrink. Its a gentle heatgun.

Nigel
Life is keeping interested and excited by knowledge and new things.

Posted : 27/05/2017 2:14 am
corey.a
(@corey-a)
Trusted Member
Re: mk2 -> mk2s upgrade - pinda nut removal problem

And once you get it off, grind down a flat washer on one side and add that and a lock washer under the nut. Screw that loctite!

Posted : 27/05/2017 4:53 am
prusayo
(@prusayo)
Reputable Member
Topic starter answered:
Re: mk2 -> mk2s upgrade - pinda nut removal problem

You have my sympathy...

I have not glued any part unnecessarily, so I didn't suffer this issue. The only thing I can suggest to to hold the probe body with pliers and hope that the probe survives.

Peter
That's what I ended up doing, thread got partially dented. Hopefully it should still screw in. Thanks.

Posted : 27/05/2017 6:44 am
prusayo
(@prusayo)
Reputable Member
Topic starter answered:
Re: mk2 -> mk2s upgrade - pinda nut removal problem

Blue Loctite should be easily removed mechanically as said on many websites. You just need the right tools. A top and bottom spanner didn't work for me with my Blue Loctited Pinda probe nuts. Try using a heatgun. It worked for me. I borrowed the heatgun from my wife. She does crafts and I use it mostly for heatshrink. Its a gentle heatgun.
Interesting, didn't realize that would work.

Posted : 27/05/2017 6:45 am
Nigel
(@nigel)
Honorable Member
Re: mk2 -> mk2s upgrade - pinda nut removal problem

Update protect the Pinda probe rubber end with aluminium foil if using a heat gun to free the Pinda Probe. Most Loctite secured mechanical parts can be freed by using heat. Red, Blue and whatever.

Nigel
Life is keeping interested and excited by knowledge and new things.

Posted : 28/05/2017 4:56 am
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