Graupner motors

[Max]

Re: Graupner motors

I think on sketch up you go to file, export, then select a jpeg file and save it.
I think it's something like that

[archie2000]

Re: Graupner motors

it needs to save as a .dae or a .whatever the other one was
so i can do a .dae.jpg and that wont work
and i cant copy and paste a print preview
its only for gears anyway
cheers for helping

[psycho_fling]

Re: Graupner motors

how can you not copy a print screen?

hold the fn key when you have the view you want to show then press the PRTSC button on your keyboard

then in paint press CTRL C and then crop the image, save as a jpeg done

[archie2000]

Re: Graupner motors

ok I'm not on my computer now but i will try that when I'm home

[Laser]

Re: Graupner motors

go on sketchup

go file-->export 2d image

then export it, upload to photobucket, paste url with img taggs and done

[archie2000]

Re: Graupner motors

aah 2d

[archie2000]

Re: Graupner motors

hi guys
these are my 2d files for gears
a 12t and a 31t gears
the slope on the teeth is 9.9mm long so they are quite big teeth and hopefully easy to cut
lets see how this goes......

[archie2000]

Re: Graupner motors

ok thats nice
what i will do
cut up a square of 15mm nylon 6 big enough for the gear
clamp it in my machine vice
choose a tiny drill bit and fit it into my pillar drill
make lots of little holes as guides
tennon saw my teeth out
make it shiny with emery paper
ok i am going to stop making tons of little posts and make a few longer ones like this
will 15mm nylon 6 be ok for a gearbox that will need to take quite a lot of stress?
where is it that sells 15mm sheets of nylon instead of 12?
cheers guys
what do you think of my gears?
Oh and a massive thanks to everyone who helped my awful ICT skills

[typhoon_driver]

Re: Graupner motors

You are going to make them yourself?!

Those will not work for a whole raft of reasons,

- The profile isn't correct on the teeth
- Unless using a mill and a lot of time, you will not get the required accuracy
- If you don't get the central hole bang on center they will not work
- The teeth will chew each other to bits
- 9.9mm teeth on a featherweight gear are not required
- They will be too heavy

I could go on

Save yourself some time and money, don't bother trying to think outside the box or be fancy or anything. Your first featherweight is gonna suck. It's a fact of life. Anyone that has been in the hobby for a couple years will testify that their first robots were rubbish. It's a learning curve. Save yourself money and heartache and stick to the standard stuff that people have advised in this thread and elsewhere.

Build a simple rammer, nothing wrong with that for a first bot. Take it to an event and see how trashed it gets. Then take it home and learn from it.

I should also add, that I can tell that you are enthusiastic. That's a good thing. It's a great thing for this hobby because you are going to need it when it's the night before an event and nothing wants to work and you are tearing your hair out (we've all been there). But you need to stop and listen to the advice given to you and ideally follow it.

Ask yourself why multiple people are suggesting that you do the same thing?

[archie2000]

Re: Graupner motors

if i haven't already come across as being pretty thick i kind of am and the only way i learn is from my mistakes and while i haven't tried it there is still that 1% chance it might work
on this occasion i will quit while i am ahead
i now understand gears and how to show people my failed models
thanks to everyone who helped
axe bot it is
ok this gives me endless questions like what about a brushless axe?
i would need 2 of them but could i do that with very good timers like so they can turn on one motor for so long then switch ti the next next one and so on
anyone recommend anything?
thanks again

[harry hills]

Re: Graupner motors

brushless axe

:|

how about some complicated thing that wont work?
-no, build something simple and learn from it
okay, how about some complicated thing that won't work?
-no, build something simple and learn from it
okay, how about something complicated thing that won't work?

[archie2000]

Re: Graupner motors

you.have stuff from e=MC hammer left over Harry
that has most of the stuff i need
hmm if a scooter motor 500 watt.is about 3-4 tons i will struggle
can you stick rare earth magnets outside a motor to give it more power?

[joey_picus]

Re: Graupner motors

...which scooters have you been riding that they have three tonne motors?

[archie2000]

Re: Graupner motors

oh hiya Joey
i was trying not to post the wrong answer so insted i overexadurated
:P

[Max]

Re: Graupner motors

You don't mean tonnes or tons you mean kilograms or kg- a scooter motor will way maybe 2kg. Just stick with that if you insist on making an axe- no extra magnets as the motors are powerful enough on their own, you only need one motor. Look in the good websites for beginners threads and there is a guide to make an axe bot- stick to that don't try and modify it!!!

If I was you I would go for a rammer or a thwackabot which has an axe which either goes over the top of the robot when you break (like saint I think?) or when to turn it goes around (like barnsleybot). Keep it simple, like Gary said you will probably over complicate your first bot and then you learn lots of things for your next bot, so don't waste lts of money and time and make sure you stick with the design you go with, even if you realise you should have made it differently half way through just stick with it so you h ave a robot, all robots could have been built better but they are bett built than when they are left in parts.