nah not when its all in bits:p
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.
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nah not when its all in bits:p
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.
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?
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(ohh yeah is naming the bot the hardest part?)
Dont use Drub because thats what i want to call mine:)
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
Cheers ill have a go with it
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
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)
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.
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 :)
make the bot and dip in a massive tube of vinager?? that would rust it wouldnt it?? :)
hey Marco, are those lexan motor mounts/gearholders? if so are they up to the job?
I have loads of spare rust if you need any.
polycarb
I hope they are up to it. Only one way to find out really isnt it
*edit*
Infact im going to be bold and say surely they can handle it. If behmoth can run on cnc made polycarb sprocket then surely my polycarb motor mounts should be fine.
(Message edited by marc0 on June 05, 2007)
looks like its going to be a beast u going to keep updating your profile pic?
i made that test frame i made self right. its a very poor self right but i thought it was going to be impossible. the rams are only 16 bore 50 stroke and its only abit of 4mm pipe direct to the valve from the compressor.
http://www.youtube.com/watch?v=DeANS4shVgMhttp://www.youtube.com/watch?v=DeANS4shVgM
i have been having a play with some stuff again. got a 40bore 125stroke ram and made a crushing spike to crush random stuff i can find. how i have it set up what do u think it will crush at about 70 psi and about 140 psi. its untested at the moment i need to make some sort of rose joint to attatch the ram to my spike.
http://i189.photobucket.com/albums/z244/TXROBOTICS/Robot%20Test%20Frame/Biohazard008.jpghttp://i189.photobucket.com/albums/z...Frame/Biohazar d008.jpg
fun!
what are the washers like that come with the wheels from ewan?
didnt get any with mine so i didnt know if they were specially made or just a standard penny washer, with the left handed thread screw having the taper near the head i didnt know if it was a countersunk washer or somthing.
Cheers.
Many apologies Tom, Ive been short recently. Theyre just standard heavy duty (reasonably thick) 6mm washers to help retain the wheels with a reverse threaded screw (put a washer under screw head).
ahh cheers fella.
i didnt get any either but i got some if u want them tom?
well imma need 12 with the 6mm hole in and im going to need 12 with like 10mm hole in or whatever it is so i can put a washer behind my wheel too so ill probs just order like 50 of each
imma add drive to that test frame i made. i need the cheapest radio gear possible with tx and rx + batteries and charger. its going to use servos and microswitches as i want to have as little cash in it as possible, needs to be able to controll drive + flipper so if anybody knows of one drop a message. i dont care if its 40mhz or not it wont be going into combat just need any old 4ch+ radio gear.
the robot test frame with flipper + motors stands me at 8 quid so far :p
Rain was well gud today. i got the day off work cos the workshop was flooded, it was a day off but didnt give me the chance to work on my bot, leeds ringroad was flooded and load of cars broken down in the water there were loads lads pusing all the cars out of the water. it was above waist hight. my dad and his mate broke down in the water so me and david went over in my dads truck and my dad got in the truck and drove straight through the flood and towed my dads mates car away. suppose its handy having a 4x4 pickup jacked up abit. anyone else get a bit of a flood?
Just a load of sodden roads and cars driving by eager to splash you in Bristol! Oh the joys of living in a rather hilly town.
I was lucky enough to leave yorkshire the day before this all kicked off.
1 bad it about all the rain. i have one of those arc activated mask and it was in a cardboard box on the floor. it got rather wet and i dont think it will be reacting to arcs any time soon so.
in some of these 12v drill motors the ball bearings are stuck in and i cant get them out. how do some of you get those tricky ball bearings out?
Turn the drill upside down and spin the shaft with your hand. Sometimes this is enough to force the ball bearing out of the hole.
If not, use a flat bladed screwdriver (or similar) and crudely wiggle the screwdriver round in the hole with enough force to widen the top of it to a larger diameter than that of the ball bearing. Turn it upside down and the ball bearing should fall out.
If not, resort to casual swearing and throw the drill off a wall :)
(better still, await the advice of a more sane person on here :lame:)
i tryed the 1st way and the 3rd way ill have a go at the 2nd way, what you still doing up at this time? nocturnal?
nope there still stuck :p
ahhh no 1 is about now :sad: ohh well guess im the only nocturnal creature here?
nope its nearly 5 i dont sleep more then 2 hours lol and im up get me on msn anthonyratcliffe@hotmail.com
i used a magnet for my ball bearings
I would say I was nocturnal but I went to bed right after posting that :lame:
Good idea with the magnet Ant, never thought of that before
you know on drill motors theres a little bit of in out movement on the threaded shaft? well on one of the motors when you pull the shaft you can see the bearings inside the gearbox. still safe to use?
had the gear box appart and its the bearing in the end thats gone but imma still use it anyways its only going in my test frame. ohh and its easy to get those ball bearings out by opening up the gearbox and just pushing them out it was just grease holding them in.
got a picture on profile of my robot in current stage.Take a look:)
cool u do it all yourself?
Yer ive been doing it over the past week, nearly finished the frame work, just need to complete to flipper arm. Finished exams today so now i can crack on with it:)
i just finished some early GCSEs so i know have a week or less than to get my bots ready for sat
alex, do you use pneumatics in your robots?