Drills

Dont know if you have read this already but after skimming over the Mini EV Overvoltage topic on the US Robot Fighting League forum it confirms that Mini EVs dont like being overvolted and at 18v you would be pushing it because a hard impact at that voltage will break the brush holders on the motors unless they are well supported.

Also you might want to read up on the Mini-Walt its a Mini Ev combined with a 18v DeWalt drill transmission making a combo more faster, smoother and cooler drive with neutral timed and more torque compared to the 18v DeWalts running on 24v . The page also provides some good insight and modifications to improve the Mini Ev motor.

Chris - http://www.featherweights.org/forum

The MiniWalt - http://www.2badbots.com/miniwalt.htmhttp://www.2badbots.com/miniwalt.htm

Chris - http://www.featherweights.org/forum Im So Evil Im Worshipped By The Devil

Hi, just fount some wheels from Clas Ohlson and i think that those could be screwed straight to drill shaft like the red wheels
those retail fot 1.75‚, have 8mm center hole and 100mm diameter, here is a pic-- http://www.clasohlson.se/images/products/S/lo/B/308303_B_2004-06-30_143918.jpghttp://www.clasohlson.se/images/prod...-30_143918.jpg

and we got one 6kg in Finland using them-- http://www.robosota.fi/funktiot/naytarobokuva.php?roboid=69http://www.robosota.fi/funktiot/nayt....php?roboid=69

(if anyone is interested about this information... :))

James Cooper sells some very grippy blue wheels, and modifys them to screw straight onto drills. Many roboteers have had these made for them and not a single one has been unhappy with their performance. these wheels are used by ploughbot, venom, micro-maul, razer, warhead and many more.

well worth checking out
If your interested e-mail james at rcwars@hotmail.com

I agree competely Grant.

I bought 4, cost £3 each for the wheel and a further £3 each to take their weight down to 140g.

Very grippy and good quality.

JH-Q ...... I bought some of those wheels from Clas ohlson in Sweden when I visited their store in Insjon earlier this year. They will fit straight on to your drill motor gearboxes. They are very grippy too.

Ian

Im using the blue wheels on my new feather, 6 of them:),Might actually finish this robot lol.

Does anybody know if I can buy some longer left hand threaded bolts to fit my drill output shaft? Or am I going to need to mod the bolts I have? (cut and weld abit in:)) Thanks.

er... well... put it this way, if there was plentyful supply of left-handed bolts, I wouldnt have needed to buy over 18 drills :)

Talk to a local DeWalt distributor, they should be able to order some of the longer versions.

For those who might be interested, Currys in the UK are selling 24v Power Devils drills at £15 each.