From The Ground Up (Advice Thread)

[Max]

Re: From The Ground Up (Advice Thread)

I'm half an hour away near tunbridge wells but I haven't even finished my first robot yet so I'm not a lot of use to you

[Roland]

Re: From The Ground Up (Advice Thread)

Would that be Crowborough then?

[Max]

Re: From The Ground Up (Advice Thread)

Yes

[Roland]

Re: From The Ground Up (Advice Thread)

I have a friend who lives there, so I've been driven the distance before
What jigsaw setup would be best for HDPE? Steel, Aluminium or Wood?

[psycho_fling]

Re: From The Ground Up (Advice Thread)

wood is best but if you run it too fast the plastic will melt and clog the blade up, a hand saw is much easier for the big cuts

[Roland]

Re: From The Ground Up (Advice Thread)

I read a manual that said Aluminium blades were best? As long as you constantly spray it with water and move the jigsaw slowly. The trouble with hacksaws is it's hard to get a straight cut. Why would the Wood saw be better? I'll trust your judgement but curiosity wouldn't kill the cat in this circumstance.

[psycho_fling]

Re: From The Ground Up (Advice Thread)

well a wood blades teeth are much more spread out so your less likely to clog up imo

[Roland]

Re: From The Ground Up (Advice Thread)

Got the first piece done, rasped down the sides and now I've just got to angle the front edge at 45 degrees.
The amount of swarf you get off the stuff! It's ridiculous!

[Roland]

Re: From The Ground Up (Advice Thread)

Got all the pieces cut now, Jigsaw plus constant water spray worked ruddy well and it was quick!

[Roland]

Re: From The Ground Up (Advice Thread)

Blue wheels FINALLY arrived, after 1 and a half weeks of waiting!

Should I be able to slip them onto the drills easily or do I need to clamp the axle because at the moment they aren't going the whole way in?

Plus: I can't find a design for a motor mount, does anyone have one or can describe one to me that I might use? Thanks

[harry hills]

Re: From The Ground Up (Advice Thread)

i just stick a screwdriver in the end of the motor so it cant move and screw the wheel on.

as for mounts what i do is drill lots of holes so they make a 3 by 2.5cm rectangle then it remove the center and file it untill a drill motor can fit in, then its only a case of using a hole saw on another bit of plastic for the end of the motor to slot in. total cost of about 5 quid.

[Anttazz]

Re: From The Ground Up (Advice Thread)

Cicatrix' motors are entirely supported by the gearbox end as Harry described in the first half of his description then further held in using plates from the drill being screwed in through the plastic from the wheel end.

[Roland]

Re: From The Ground Up (Advice Thread)

Aaah! Yes I remember now, there was a video of that setup being built, but I don't have the link?

Thanks again! Got some of the holes drilled and countersunk, one went wrong so we had to use some synthetic metal to fix it, but such is life not being a robot

[Roland]

Re: From The Ground Up (Advice Thread)

Found it! http://teamorr.com/how-tos/how-to-bu...rweight-robot/

[Roland]

Re: From The Ground Up (Advice Thread)

All finished with the body, total weight is about 7.5kg Gonna take it back to good ol' Lewes to do the wiring, has anyone any advice or know how on modifying NiMh batteries? I have 6 8.4v battery packs and I want to convert them so I have 4 9.2v