Drills

Ok, in that case all of the challenge range do have sealed gearboxes. Challenge is a kind of basis of all the other drills, as it is the cheapest model, and an almost identical model to such cheap drills as the BIG W drills.

Same as the B&Q 14.4V then.

Just dont take the bugger apart!

The Powerbase range (sold at Homebase) are made by Bosch, so theres not much difference accept price!

Jas

with those UK robotics drill kits, how is the tread held onto the wheel? with nails, screws etc...

and has anyone had the tread come off or anything of that nature

Dominic have mounted a small 3/8 UNF nut inside a hexagonal hole in the wheel.

I think he means the tyres - I think theyre countersink-bolted/screwed on but Im not sure. I know you can buy new tyres.

-- Kev

You can buy new tyres, and the screws are countersunk head screws which do the job. As the first person to use Doms kits, I am overly impressed, and Id advise anyone with the cash to buy a kit when using drill motors...

Cheers, Ewan

How much do they cost?

The wheels, tyres or the whole mount?

I brought a kit of four mounts for 48.00, therefore the two mount pack should be 24.00... But ask Dominic for an exact price...
Cheers, Ewan

just a quicky from a noob.... will my 14.4 volt drill motors be able to power my feather with 220mm diameter wheels. The wheels are quite heavy and are approximatly 50mm wide. If not should i use WW motors instead?

ohh an just one last thing.... will the Futaba FM40MHz Micro 4ch RX from technobots be suitable for use in a feather? previous mini RXs ive owned say in the instructions that they wont work at long ranges etc because of the use of small lightweight components

I would be confident that anything you buy from technobots is suited to robot wars. And 220mm dia wheels are astronomically large for drill motors, but about right for wiper motors.

Eddy
http://www.featherweights.org>

would the drill motors move the bot atall or would it just stall?

ITS HERE! lol the bigass technobots package arrived yesterday :-D
i spent the whole day stripping wires and crimping spade connectors and my hands still hurt (all connections are made with these). All the wiring is arranged into tidy looms held together with spiral tube. Everything worked first time :-D all thats left to do is, screw down all the electronics, make a bracket to hole the wheels on the axles and then cut, bend and rivet the shell

hey everyone,

ive been using the red wheels as we now them (just hard plastic wheels that screw right onto the drill). these have been wearing down totally after one event and they are also really tractionless and hard to put on/remove.

so im looking at testing out the UK robotics type wheels.. so would any body know the dimensions (diameter and width) and what the wheels are made of? and also if the wheels can be purchased seperately.

any help appreciated.

Wheels are 80mm diameter plus thin tyres, and 12mm thick. Wheels are available separately but they need additional fixing stuff (nuts and washers etc) and Im not sure if these parts come with the wheels-only option. Doms the purveyor of these things so hell be the man in the know.

-- Kev

Hi, I have found this cordless drill on the maplins site, and at the moment its half price, (£16 from £30). I wondered if anyone knew of it or has any idea whether it would be suitable for drive in a feather?

http://www.maplin.co.uk/products/module.asp?CartID=04050517123456&moduleno=37950http://www.maplin.co.uk/products/mod...moduleno=37950

Thanks, Mark.

Should think theyd be ok.

£18.49 inc VAT, you could find a 12v drill cheaper but i guess your paying for the extra 2 batteries, charger and 39pc tool kit.

As for its suitability as a featherweight motor its ProMax brand so it will be an ok motor and gearbox.

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

Hey

I was wondering does anyone Know if the 6v B&Q Proformance Power has a sealed gearbox?

Thanks for the help

Regards
Ian

Hi Glen,

The UKRobotics wheels are made from HDPE with steel inserts. Dimensions are 82mm diameter, 12mm wide. The wheels have been designed to bolt together so you can make them as wide as you like. Wheels & tyres can be purchased separatly.

The additional fixing components (nuts and washers etc) are normally supplied as part of the mod kits but if you state when ordering that you are using the wheels without the mod kits, we can supply the additional parts.

Modkits, wheels, tyres etc can be ordered here:

http://www.featherweights.org/shophttp://www.featherweights.org/shop


Dominic

http://www.ukrobotics.comhttp://www.ukrobotics.com

Whats these ere red wheels ? where you get um ?

Theyre big in Australia, but I dont know the origin of them. To be honest, from what I can gather, Doms wheels are far superior.

What I would like, is a solid aluminium wheel, that I could tap some machine screws into to hold the tyre. About 3.25-3.50 inches in diameter, tapped to go straight on the drill. However, I wonder how well the thread would last.

Any thoughts?

Very well. :) Thats what ive done with the back wheels on KR2. Tapped to screw onto the drill gear box shaft. Tho instead of screwing rubber or whatever grip to it, i just got em sent away to be vulkernised to be done with it. Look pish posh. Too posh for me - eeek. LOL

Mr Stu

Where did you get them Stu ?

Ive just found the current best UK cordless drill offer at Index- a 9.6v drill for 9.99

http://www.index.co.uk/rf/navigation/product.do?SN=&versionid=728&categoryid=149949417& thisprod=176186142&product=176186142&D=176474448&r ow=1&col=1&displaybanner=falsehttp://www.index.co.uk/rf/navigation...categoryid=149 949417&thisprod=176186142&product=176186142&D=1764 74448&row=1&col=1&displaybanne r=false

This would be ideal for Dominics mod kits, or just a 2wd or 4wd featherweight.

macro have the best prices for NuTool drills, from what i can remember they are;

12v drills - £6.99
14.4v drills - £9.99
18v drills - £14.99
24v drills - £19.99

they also have BIG 30v drills, dont know how much they cost (we have one) and i think its what Blue uses for drive.

Our local Woolworths and Big W are selling 18v Drills at £9.99 at the moment during there sales otherwise there norm £12.99 and there really easy to hack with a decent sized motor.

Chris - http://nobadrecords.co.uk/hosted/forum/fwforum/Im

ok just to let you know the red wheel is a 95mm wheel for bunnings(if you dont have it its just a big hardware store) but the resion we all like them so much is that you can screw a drill moters end right though the centre its the right size. Are they as good as your wheels? no
But there $4 au each so not bad

Has anyone found anywhere in the UK that sells these Red wheels ?

To be honest, I think the closest you could get to them is the red wheels at B&Q, but youd be better off buying a higher quality wheel

Or find someone with a lathe

does anybody know if mini EV warrior can take 24v?
that motor-- http://www.robotcombat.com/images/store_mini_ev.jpghttp://www.robotcombat.com/images/store_mini_ev.jpg
im trying to put those in 28:1 all metal gears drill gearbox,10cm wheels and two of them for LW (25kg) drive motors.

Mine gets quite warm at 16.8v, but thats coz it was full on/off. No speed control. Im sure if you use speed control, its would be better, but 24v, hmmm maybe pushing it.

Mr Stu

big heatsinks and fans?

Ive had two working in an experimental dual drive gearbox and it is possible to push them to 24v, but be careful with the heat ive always found them to still get fairly hot with a computer fan on. But ide recommend running them at a safer voltage which is what I am now doing with them for tests. (I wasnt aware that you had them Stu !!)

Also ive ordered some HTI Replacement motors and going to try them out, only a couple of $s more but a slight increase in HP output and also able to take 24v. Only downside is at 12v there is a slight drop in rpm compared to the Mini Ev at 12v. So might be worth a look.

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

The 300psi motors we have found in Australia are basic mini EV clones, weve run them on 24v and they seem to take it quite well. Just as long as you have around 10:1 gearing per 12v them seem to be happy. Thes one we have do around the 12000rpm mark on 12v. I experimentally ran one on 36v survived no load, but ejected a bit of resin from the armature at the 30000rpm+ speeds. The motor still works and doesnt seem to be unbalanced, but I dont think they will last with a load on 36v

I asked HTI motor pinion gear measurements, it has 9 teeth, 42 pitch diameter (whatever does it mean) and the OD is .38
bad luck, pinion gear of 550rpm drills that i have is 9 teeth and 8mm od, at least HTI motor shaft is 3.175mm, should be perfect to replace drill motors.

9 teeth, 42 pitch diamerter means that the gear conforms to the DP standard.A UK standard for gears.

That means that a 1 diameter gear would have 42 teeth.