Ramp help

[Tim566]

well we never made it up but the idea I had was for a wheelie bar that dropped down and locked in place and then perhaps by use of pneumatics or maybe a small motor, to have a bar extend out to give a boost up the ramp.

<edit> note we never implemented this idea due to lack of time we tried quicker fixes that failed.</edit>

[Tim566]

Originally Posted by Starke340

how far up the ramp do you make it before you flip?

Well not very far but we never actually measured . (we have 4 rear wheel drive with the cool treads and 2 front "wheelchair" wheels just slightly off the ground so they can roll when we go up the ramp but dont hinder our turning) please keep the helpfull responses coming because even if you dont give me the idea you may inspire me to think of it so please keep 'em coming.

[Tim566]

Unfortunately I don't have any pictures to upload.

spinning wheel idea is interesting if it works

[Nitroxextreme]

This may not work with your robot at all...I really have no idea what the overall design is...

What you have been saying so far is that you have alot of traction in the back and no touching in front.

Again I'm not sure if this would work...but it may be possible to go up the ramp sideways. If you go up the ramp on an angle you wouldn't have to take the complete angle with all of that traction. Center of Gravity would be the only questionable factor here.

Any Pictures could help with troubleshooting...even microsoft paint drawings if pictures are difficult to find.

[Uberbots]

Originally Posted by Tim566

we tried that it actually led to slight tread damage and our wheels bounced off the ramp so it was unsuccessful but keep feeding me idea I appreciate the responses thank you everyone and keep 'em coming.

OH so you have a tread system... thats new.

Well then, what i would sugest is work a strategy out with your alliance. tell them that you need help with the ramp, and if the time doesnt allow then you could help push them up.

without some design modifications, im sorry but you just cant get up that ramp.

[Mr. Freeman]

1. Move battery to front of bot.
2. Move ?????? to front of bot
3. Post picture of robot to increase helpfulness of responses.
4. Attach bars that slide out so that they hit the ground when you climb up the ramp, like a wheelie bar. Perhaps have some sort of ratchet mechanism so they don't then slide back in when going up the ramp.

[Starke]

thats alright. im not giving up yet . it sounds like you have 4 wheel drive. if this is the case, make it 6 wheel drive. this will enable you rear 2 wheels to act as a wheelie bar. thats all i can think of for now.

[Uberbots]

well, you cant do much else but redistribute your weight. Without a low center of gravity, you cannot get up the ramp.

unless, though, you have some weird robot that requires a special routine in order to climb the ramp. in that case i would talk to your programmer to develop that routine.

I wish i could help you more man, but without your robot in my view thats kinda hard to do.

--ss32

(sorry read my next post... i dont think i read your description of the problem clearly enough )