Extruders still killing me

General discussion of 3D printers

Re: Extruders still killing me

Postby JeremyBP » Sun Mar 03, 2013 3:28 pm

Well, there is a procedure to convert them to 1.75mm. It's on the reprap wiki, along with everything else you may have ever wondered about the J head.
http://reprap.org/wiki/J_Head_Nozzle#1.75mm_Conversion
Looks doable. The normal metal hollow-lock screws are fairly cheap from McMaster-Carr, as is the PTFE tubing. It looks like you shouldn't have to machine anything to get it done.
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Re: Extruders still killing me

Postby roberlin » Mon Mar 04, 2013 2:44 am

tmccafferty wrote:Looks like everybody is out of stock. Argh!

hotends.com seems to be pretty consistently in stock on Friday afternoons if you can wait.

But if it were me, I would probably just contact Reifsnyder and ask him exactly what I need to order from him to do the conversion.
I imagine he would be happy to help.
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Re: Extruders still killing me

Postby tmccafferty » Mon Mar 04, 2013 5:40 pm

Brian at hotends.com is taking care of me.... Good man!
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Re: Extruders still killing me

Postby tmccafferty » Sun Mar 10, 2013 5:10 am

Got the new extruders in the mail this evening. Ya...hoo! Got it installed and the resistor potting is drying. Hopefully will be squirting plastic by morning :D
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Re: Extruders still killing me

Postby tmccafferty » Mon Mar 11, 2013 3:07 am

The proper size extruder works great. Calibrated fine and consistently extrudes without jamming. Great! I can now squirt plastic.

Now, if I can only figure out how to get it to stick to the bed. :oops:
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Re: Extruders still killing me

Postby Enraged » Mon Mar 11, 2013 3:10 am

I had good luck after level my print bed, then using a piece of paper to set my Z, and using blue painters tape to print on.
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