Nozzle impossible to unscrew?
Hello everyone. About a month ago, I assembled a Prusa MK3 kit and I have been extremely happy with it. Currently, I am attempting to switch to a 0.25 nozzle for high precision prints (such as miniatures). However, while trying to follow the instructions to change the nozzle on the prusa help site, I get stuck at step 5, unscrewing the nozzle. Now, I will say that I do not have a spanner for the nozzle. I am holding the heating block with an adjustable wrench, and I am trying to unscrew the nozzle with the supplied pliers. It simply will not come off. I fear that if I use more force that I am already using I may damage the nozzle - I believe I may have made a few scratches already.
Are the pliers supposed to be enough to unscrew the stock nozzle? If not the instructions should reflect that better. If so, what could I be doing wrong?
Thank you for your help.
RE: Nozzle impossible to unscrew?
Make sure nozzle heated above highest temperature fillament used
Please help me out by downloading a model it's free and easy but really helps me out https://www.printables.com/@Hello_474427/models
RE: Nozzle impossible to unscrew?
Make sure nozzle heated above highest temperature fillament used
Yes, I used the built-in function to heat the nozzle hot end to 280°C.
RE: Nozzle impossible to unscrew?
Contact prusa through live chat they can step by step on how to do it and any problem they will help you
Please help me out by downloading a model it's free and easy but really helps me out https://www.printables.com/@Hello_474427/models
RE: Nozzle impossible to unscrew?
After spending a $1000+ on a printer, you really don't want to skim on the tools. Buy some proper sized wrenches, and/or print one of the 3Nm torque wrenches here: https://www.printables.com/model/24539-torque-wrench-handles-from-10nm-up-to-30nm
And of course, @hello's suggestion to contact Prusa support makes sense to find someone who can talk you through it.
Formerly known on this forum as @fuchsr -- until all hell broke loose with the forum software...
RE: Nozzle impossible to unscrew?
also make sure you are not trying to tighten it.
RE:
yes.. +1.. I was inadvertantly tightening it when I did mine.. .. (lefty loosey) .. and use a socket for the nozzle, not an adjustable..
also make sure you are not trying to tighten it.