Thursday, 23 April 2009

Hmmm - interesting

Marking onto PTFE turned out to be interesting - pencil didn't work at all, and trying to make small measurements marks with a ball-point pen was a bit hit and miss, but marking lines with the pen was largely fine.

I don't know how long to make these PTFE strips (they're 0.5 " wide), but the instructions (http://www.reprap.org/bin/view/Main/McWire_Cartesian_Bot_1_2) say there are 12 of them, and the total number listed in the BOM is 24...


In the pictures they look about 2.5 " long, judging against the size of the stages.
Meanwhile, the BOM under (http://parts.reprap.org/uniqueparts) states 24 " of PTFE strip - although that may just be the size of the supplier's part.


So, I'm going to go with 2 " per piece of PTFE.
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3 comments:

  1. Demented Chihuahua26 April 2009 at 11:58

    2" is more than enough. I ended up using about an inch myself. However, I didn't bolt them to the stages as Zach's instrucitons show. I super glued them. Then again, I was using plexiglass for my x-y stages. Not much sticks to PTFE but superglue is one of those things.

    Good to see someone building something!

    Demented

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  2. Hazel27 April 2009 at 15:04

    Ah, yes, it was probably your comments I'd read on the forum somewhere, and had noted that superglue was the way to go.
    Thanks

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  3. Demented Chihuahua28 April 2009 at 08:35

    No problem! Glad someone read them and found them useful.

    Demented

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