Team Coolspeedbot: first feather weight robot

[Coolspeedbot]

A small achievement with the bodywork, one motor mounted.

[Coolspeedbot]

What is your wedge tip made of? I'm struggling to get a lasting sharp wedge with HDPE so will need to add a metal end when I know how much weight I have to play with.

the plan is to use Hardox plates, the real robot's wedge won't be as sharp and be more rounded as to avoid it catching on the plates of the arena floor

[lowndsy]

What is your wedge tip made of? I'm struggling to get a lasting sharp wedge with HDPE so will need to add a metal end when I know how much weight I have to play with.

[Coolspeedbot]

Oh I see, well hopefully it will be.

[daveimi]

*wedge

[Coolspeedbot]

Edge? not sure what you mean.

[daveimi]

That's pretty much a perfect edge.

[Coolspeedbot]

So after another session of trying to cut the HPDE I decided to reassess the design of the back of the robot as there has been issues. Originally the back of the frame indented slightly to hold the armour were as the front had the armour resting on it so I adjusted the back, removing the indent and made it easier to cut.

[Coolspeedbot]

same here

[R9000]

I need a drill press pretty bad. I just need somewhere to put one. :P

[Coolspeedbot]

I just ordered a new one now I just need to solve my other issue, drilling a hole that doesn't go at an angle.

[R9000]

I got a green one from Argos (not sure of the brand) which worked fine for me. It was like £20 I think.

[Coolspeedbot]

Jigsaw. You need a woodcutting blade, set it fairly slow and take your time. Make sure you always cut on the waste side of the line. Also if you want to be a bit more careful, you can use a regular handsaw or a coping saw for rounded edges, although obviously it takes longer. Might want to get yourself a hand plane to straighten up those edges afterwards too.

I see, going to need to replace the Jigsaw then as my current one has developed a safety issue.

[R9000]

Jigsaw. You need a woodcutting blade, set it fairly slow and take your time. Make sure you always cut on the waste side of the line. Also if you want to be a bit more careful, you can use a regular handsaw or a coping saw for rounded edges, although obviously it takes longer. Might want to get yourself a hand plane to straighten up those edges afterwards too.

[Coolspeedbot]

Well it was a good job I bought a spare 'sheet' of HPDE for Wolf-E as I made a mess of half of the first one .

What do people recommend as the method to cutting 20mm thick HPDE?