Building a 3D Printer, RepRap Mendel Prusa2 by craynerd

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j45on:

--- Quote from: craynerd on July 12, 2012, 04:39:16 AM ---What is your hotend wrapped in?
--- End quote ---

Not sure , it feels like silicone and has a woven cloth liner ( my hot end came pre-assembled )
Did a quick google and I believe it is some thing like pyrojacket http://www.google.co.uk/search?q=high+temperature+cable+insulation&hl=en&client=safari&rls=en&prmd=imvns&source=lnms&tbm=isch&sa=X&ei=tET_T_HsOYSn0QXk_dGgBw&ved=0CEYQ_AUoAQ&biw=1540&bih=1248#hl=en&client=safari&rls=en&tbm=isch&sa=1&q=pyrojacket&oq=pyrojacket&gs_l=img.3..0i24l2.27782.31009.2.31220.10.9.0.1.1.0.77.374.9.9.0...0.0.huioW0SureY&pbx=1&fp=1&biw=1540&bih=1248&bav=on.2,or.r_gc.r_pw.r_qf.,cf.osb&cad=b&sei=iUX_T8OVFemw0AWrofCfBw

jgroom:
Chris - My thought was that the 6mm might resist warping better, but I tend to way over engineer things. :loco: I think when the time comes I'll try the 3mm. Thanks. :thumbup:

Jason - Just received my hot end kit from MakerGear this AM and it uses the same insulation. I think you're right that it's pyrojacket. Funky feeling stuff, described in the parts list as 'rubber coated fiberglass insulation'.

Well I have all the parts now, just need to finish 'some assembly required'. :D

Cheers

Jeff

Monkey with a mill:
Greetings. I have been along time visitor and just now registered. I have a question about the ramps 1.4. I am building a reprap as well, and am using the same electronic package as you. When I turned it on however, the z axes dos not work properly. With 1 stepper motor attached, the motor will rotate when prompted to by pronterface, however with two z axes stepper motors applied , they will not rotate, instead there is some chatter, and finally they stop responding and the system must be reset to get them to work. The steppers are not physically attached to the threaded rods, so it is not mechanical binding. This only occurs on the z axes. Have you experienced anything like this and have any advice?

shipto:

--- Quote from: Monkey with a mill on August 02, 2012, 02:25:46 AM ---Greetings. I have been along time visitor and just now registered. I have a question about the ramps 1.4. I am building a reprap as well, and am using the same electronic package as you. When I turned it on however, the z axes dos not work properly. With 1 stepper motor attached, the motor will rotate when prompted to by pronterface, however with two z axes stepper motors applied , they will not rotate, instead there is some chatter, and finally they stop responding and the system must be reset to get them to work. The steppers are not physically attached to the threaded rods, so it is not mechanical binding. This only occurs on the z axes. Have you experienced anything like this and have any advice?

--- End quote ---
Welcome btw
Not speaking with any authority but it sounds like you may have the motors working against each other.

jgroom:
Have you tried adjusting the trim pot on the z-axis board? Sounds like you just need a little more juice.

And welcome to MM! :wave:

Cheers

Jeff

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