First Time Bot Builder/Buyer

[RogueTwoRobots]

First Time Bot Builder/Buyer

Unfortunately thats you permanently wrecked your motor...









Nah, just kidding. For the top to spin when the motor spins, theres a part inside the gear casing (the torque ring) which needs pressure applied on it. When the torque limiter was on it, the spring pushed against some ball bearings which in turn applied pressure on to the torque ring. Im guessing youre currently sitting with 16 loose ball bearings now too?

Where those ball bearings went there are eight holes going into the casing. In order to re-appply that pressure, probably the best thing to do is to tap 3-4 of the holes with an M5 tap and insert some small grub screws into those holes. Tighten them down until the shaft stops turning easily, then tighten them a bit more to eliminate any slippage from the torque ring. Once thats done, the shaft should only be able to turn if the motor is turning.

For reference if you dont have any, one option for grub screws is CPC, some of the 5mm deep ones:

http://cpc.farnell.com/jsp/Fasteners%2C+Fixings+&+Site+Maintenance/Screws+&+Screw+Accessories/UNBRAKO/Set+Screws+M5+5mm/displayProduct.jsp?sku=FN00233http://cpc.farnell.com/jsp/Fasteners...crews+&+Screw+ Accessories/UNBRAKO/Set+Screws+M5+5mm/displayProduct.jsp?sku=FN00233

[xtreme]

First Time Bot Builder/Buyer

ye i noticed the thing looking in the holes and stuck a nail into it and that worked just gotta hope i had it set to the correct torque setting ohh and as for the ball bearings, yeah they went everywhere.

now i just need a decent ram so i can get to work on my 4 bar lifter positioning. then i can do my mock up. pete has got a 40 bore 80 travel ram but i dunno outside width of it. think i could use a smaller ram like 32 bore or somthing and still get well enough power to flip over 12kg and still do it fast. i still need a ram and all the other stuff needed for a flipper weapon like valves switcher and stuff so if anyons got owt just post a msg.

[xtreme]

First Time Bot Builder/Buyer

ordered some grub screws, now for the lifter/flipper.
im looking for everything ill need to power my 4 bar lifter/flipper. Pneumatic ram (about 80/100 stroke would do), solenoid valve, switcher. im using a compressor/buffer tank system using a aluminium fizzy drinks container to start with but im still unsure about what pressure im aloud to go with using this method, and the best way to connect my compressor to my tank. i have been told using a tyre valve (schrader valve) and just connecting my compressor onto that just like blowing up a tyre and also i have been told that the tube coming from the compressor will fit into a 8mm push fit and just have a T push fitting in the top of the tank and have my in/outlet on 8mm push fits. whats the best way to go? i will be dropping the compressor and buffer tank method eventually but i dont want to start playing with high pressure stuff just yet.
imma post abut the ram,valve,switcher in wanted section later if nobody checks this post out.

[woody]

First Time Bot Builder/Buyer

Have a look back thru the featherweight threads around 06-29-06 for some info.

Have a look at William Mc Farlands unfinished bot...theres a link on his profile ...
http://www.fightingrobots.co.uk/cgi-bin/discus/board-profile.cgi?action=view_profile&profile=badger-usershttp://www.fightingrobots.co.uk/cgi-...ction=view_pro file&profile=badger-users

It may well be worth asking him if he wants to sell......seeing as how he hasnt logged in for nearly a year!

I hope nothings happened to him.

(Message edited by woody on May 28, 2007)

[psycho_fling]

First Time Bot Builder/Buyer

gotta hope i had it set to the correct torque setting

does this have an effect on the working of the motors as drive motors?

[xtreme]

First Time Bot Builder/Buyer

nah not when its all in bits
if u have the torque limiter on it would matter i would think but not if u remove it. most people remove it. makes it easier to mount aswell.

[xtreme]

First Time Bot Builder/Buyer

i think i might have a weight problem. well not me but my bot. i have been doing some weighing and i dont know if im going to be over weight. is there anywhere to calculate steel box section weight? found a few calculators but they havent done box section.might have to end up using aluminium for my chassis.
ill have to start putting pics on my photo bucket when i start making progress.

ohh yeah is naming the bot the hardest part?

[rob]

First Time Bot Builder/Buyer

Quote
(ohh yeah is naming the bot the hardest part?)
Dont use Drub because thats what i want to call mine

[woody]

First Time Bot Builder/Buyer

Tom,
Heres a link to download one of the calculators I use.......yes box section ( square tube or rectangular ) is included.

http://www.metalsuppliersonline.com/research/FreeWeightCalc.asphttp://www.metalsuppliersonline.com/...WeightCalc.asp

[xtreme]

First Time Bot Builder/Buyer

Cheers ill have a go with it

[Gaseraki]

First Time Bot Builder/Buyer

Hey there
Well im sorta new
Iv been doing these things on and off for a while, bout 8 years. I started with the smaller stuff antweights when I was about 14. Started on feathers at around 17 and for the past couple of years iv been a broke student.
About two months ago I buit my first heavy.
Monolith, since large usless lump was a bit long. Iv started building something more serious with bosch motors and hardox armour. A few initial pics in my profile
I was recomended that i should introduce my self.And I live in Bradford in yorkshire.
my msn is clanpma@hotmail.com
Im a graphics and computer wiz btw so if any one needs help with maya or photoshop, drop me a msg.
Regards
Marco

[woody]

First Time Bot Builder/Buyer

Bots looking good ...
Its going to need some good batts and a decent speed controller for those 4 off 12v Bosches.

(Message edited by woody on June 05, 2007)

[xtreme]

First Time Bot Builder/Buyer

i love the look of things when you build somthing out of steel and it looks more mean and tuff when you use old steel with abit of rust and leave all the welds showing. but then u go and pretty it all up and then u regret that u ground those welds down and painted it. well i do anyways, but alot of people just think your too lazy to tidy it up.

[Gaseraki]

First Time Bot Builder/Buyer

heh well i could leave the thing a rusty beast. I got a peice of hardox which is prity rusty. Just need to find some rusty bolts and im sorted

[Kenny]

First Time Bot Builder/Buyer

make the bot and dip in a massive tube of vinager?? that would rust it wouldnt it??