new build atom

[ady]

Yes please sam!!

[ady]

Quick question, when building a chassis out of hdpe, should I use threaded inserts on all joins? Including inner bulkheads and floor, or do some people use wood screws in places. To go into a full combat event

[RogueTwoRobots]

Neither ideally. The screws will wear down over time and the threaded inserts pull out. Barrel nuts and bolts are the way to go for HDPE.

[ady]

Ok thanks for advice

[overkill]

For places where barrel nuts won't fit, you can use Tee nuts:



They are a type of nut insert that is pressed in from the far side of the HDPE and will not pull out. I have used them for years without problems.

[ady]

ooooohhhh I forgot about these! :-)

[ady]

I'm stuck with mounting a small titanium scoop/lip to front of robot, I'm mounting it too hdpe, any ideas what would be the best option for full combat

[overkill]

Lots and lots of screws with a nylock nut and a wide fender washer on the back. If the titanium is thick enough, use countersunk screws; vertical spinners love to bite the heads off screws.

[ady]

Ok thanks I was using 5 mm. It's to get the front to give zero ground clearance

[overkill]

For 5mm thick material you can use at least an M6 countersink screw. Depending on how thick the HDPE is you could use those Tee nuts I mentioned earlier to save space.