Originally Posted by B NEGATIVE
Fast fate has already made a complete loop from threaded acrylic,you can buy the lengths pre threaded in 5mm increment lengths,you will have to go back the the thread to find the link tho.
This is true, but I used the already threaded lengths.(I did start another loop in my SM8 but project changed direction and now took parts out of it for another build)
Abandoned SM8 Threaded Acrylic Loop (Click to show)
The loop pictured below has been running now like this for a couple of months I guess (except now the coolant is lemon yellow with the magic green mist through it)
Went for a hard industrial look using fittings and straight acrylic lengths so.....
I neither bent any or threaded any - BUT I'll certainly be trying my hand with this at some stage as I like the look of the threaded acrylic.EDIT
- Just measured the acrylic tube I have that is pre-threaded....
OD = 17.5mm (converted = 11/16)
ID = 10.5mm (converted = 13/32)
leaving wall thickness of 3.5mm (converted = 9/64)
Werm and others considering this option please consider the following very carefully.You will have to be extremely accurate with your bends and cuts
with this method guys !!
If not virtually perfect the acrylic will always crack at the thread - ALWAYS - maybe not on the first day or even first week, but it will crack, it's happened to me.
Cutting the threads creates two weak points on the tube, and if the tube is forced to flex even a little, eventually the thread will crack.
You must use a rotary fitting on at least one end to fit the tube length, and must screw together nicely without needing to use any manipulation / force. Edited by fast_fate - 4/11/14 at 6:34am