LumberJocks

Reply by oldnovice

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Posted on HMWPE runners expanding when screwed (for crosscut jig)

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oldnovice

7475 posts in 3730 days


#1 posted 08-18-2017 06:07 PM

I have to agree with what TheFridge said, this plastic is soft!
No countersink and flathead screws, but counterbore and panhead screws.
Also watch how much you tighten the screws as the material will try to rotate with the scew and when you put in the next screw the material will bow along it’s length; place a straight edge along the length to watch for bowing.

That’s what I do!
Stupid stuff I learned while working with plastics very early in my career.
Don’t even ask me about “cold flow”!

-- "I never met a board I didn't like!"


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