I have a lathe and I am not afraid to use it! This pic is the Jhead that came with my MendelMax, and it had all of those scratches when it showed up. The threaded section was bent and it had been crossthreaded. I really wanted to root for this company I got it from because they made it so cheap, but now I know why. So the pathway is open over 3mm at the top and about 8mm in there is a lip that holds the PTFE sleeve from slideing up the heatsink. it Jams up regularly right at this bump, and it is kind of a no brainer that it shouldn't be there. So I am thinking of drilling it up and getting a longer PTFE tube to run the length of the jhead. Is the PTFE tube supposed to bottom out on the nozzle? Can it take that heat? Would I just be wasteing my time trying to get this piece of crap working, and I should just order a good Jhead? Do all jheads work in all printers or are there certain ones I should be looking at? What is the best kind?
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