Ok Cool Ill track some 5mm grub screws down
Thanks
Miles

go to bunnings

itll cost u about 2-2 1/2 $ and they come in packs of 5 i think so two packs will suffice for a pair of drills
_________________
Andrew Welch, Team Unconventional Robotics

If all else fails bolt.com.au sell every type of fastener you could ever want, but make it worthwhile the postage is $13 regardless of order size.
_________________
( •_•)

( •_•)>⌐■-■

(⌐■_■)

YEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAH

Ok got everything happening now just have to do the grub screws. I'll get em tomorrow from either nuts & boltz in ip or Coventry fasteners at wacol. Our bunnings had both sizes of washers and the wheels. But the only grub screws was a multi pack of different sizes.
Thanks
miles

i got em from bunnings just the other day

look at the section with all the high-tensile and stainless blister packets of bolts

Hi guys
managed to track the grub screws down at Blackwoods in ip (17 cents each).

Yeah the Booval Bunnings is at the end of our street ,which is handy as, but it seems to be a bit smaller than other bunnings' so i'm not surprised they didn't have the same grub screws as other bigger stores.

I installed the screws so that they just touch the spinning bit underneath. So if there is still a bit of wheel slippage i need to screw them down a tad..right?

Thanks
Miles

just put two in opposite each other and tighten it down just enough so that theres no real slack on the output shaft (with a wheel attached) before the motor starts to turn.

any more then that and it'll bind the gearbox up, not enough and theres going to be a mountain of slack in the gearbox which makes it hard to drive etc. then place another two in afterwards (should have 4 at 90 degrees to each other )
_________________
www.demon50s.com - Minimoto parts
http://www.youtube.com/user/HyzerGlen - Videoooozzz

You may wish to fill all of the holes to keep out dust.
_________________
So even the rain that falls isn't actually going to fill our dams and our river systems

Nah. Only 4 is needed. Any more is just a waste. Dust hasn't caused issues yet and worst case cover em with tape.
_________________
Andrew Welch, Team Unconventional Robotics

Hi guys so when I spin the wheel by hand in either direction, should I hear any clicking of the grub screws on the spinning part of the motor? Or wind them out till its silent?
Thanks
miles

So if you have opened up a motor there is small bumps on the external metal ring which stops it spinning. General rule of thumb is to tighten each screw until it binds then back it off just enough so it can slide back and forth between two bumps. Then repeat this for all the screws.

Steve
_________________
Steven Martin
Twisted Constructions
http://www.botbitz.com

The output shaft of the motor should have no resistance for about 10 degrees or so, then a click noise when the grub screw hits the collar and the motor turns.
_________________
They say that he crossed the fine line, from insanity to genius.

Hi guys we got it all working now. Those grub screws work great. We even connected up some long wires to the drill triggers and had a go driving our robot around powered by the drill battery. Now we are just wondering if we could use two cheap speed controllers from radio controlled cars, to run it? two of these maybe. http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=2163

That would be a cheap way to get it up and rolling. But does this work? Would it plug into a spektrum receiver?

nah, thems be brushless speed controllers

you rnt running brushless drives so thed be no good

cheapest option would be sabretooth 25 amp

scorpion xxl or them misc blue controllers sold on ebay but there only limited to around 14 volts
_________________
Andrew Welch, Team Unconventional Robotics

Ok Thanks Andrew ...Now I know why no one else has suggested this. Will save for a Sabertooth.

Thanks
Miles