1 Topic by accusedmonk

  • accusedmonk
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  • Registered: 2013-10-22
  • Posts: 253

Topic: PTFE Direct Feed Guide

I'm still debating on switching to bowden or not, but it will only gain speed.  I wanted a simple fix for the yanking it does on Y moves.  I bought the E3D bowden version just in case I ended up switching so it came with PTFE.  I modeled up a quick stick to hold the end of the PTFE above the filament.  The other end neatly fits in Lawsy's extruder.  The only problem so far is that the PTFE tries to retain its curled shape it was shipped in.  Any methods I can relieve its memory?

The performance so far I'm excited about.  The head has completely free movement, and the spool smoothly rolls on the back.  This will probably fix having to keep slack in the Ninjaflex which I will have to see how that goes.

http://i.imgur.com/0mEtKHe.jpg

http://i.imgur.com/PvjrKf6.jpg

Bowden SD3, Rumba, E3D hotend, Mk5 with RtRyder changes, Direct drive Y axis and bearings, GT2 pulleys and braided fishing line, Lawsy linear bearing conversion, M3 Z screw.

2 Reply by n2ri

  • n2ri
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  • From: St Louis MO USA area
  • Registered: 2013-02-03
  • Posts: 2,539

Re: PTFE Direct Feed Guide

I had issues with curling on plastic barrel lids when trying to use them for making a rudder for a pedal boat project once, and remembered an electrician buddy using heat lamps in a box to saften plastic conduit then pulling it out with welding gloves and bending to position and holding it til cool. also didnt want to buy all that and risk melting so like sun does through winshield on vinyle etc. I laid the piece out on flat surface in hot sun with a wheight on it for a couple days. it stayed flat.

so take tube and using a length of angle bracket tape tube into corner then lay it facing sun several hours and let it cool then see if it works for you

Solidoodle 2 with Deluxe kit cover & glass bed with heater. and 2nd board SD2 used not 3rd and alum platform not installed yet still wood. also need cooling fan installed to board. use Repetier Host couple vers. Slic3r also have all free ware STL programs