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saussage

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Posts posted by saussage

    College Project - R/c Related

    in General discussions

    Posted

    please can you spare some of your time to complete my questionaire. pleas post your answers onto this topic. thanks :)

    My project idea is to get lights and a horn to work from the transmitter on a radio controlled vehicle. This will have to work so that when you push the button on the transmitter it will switch the lights on and when you push a different button the horn sounds. I am also planning this unit to be waterproof so it can be used in off road applications.

    R/C Lights and Horn Questionnaire

    1

    Do you see the need for the lights and horn on an R/C car?

    Yes No

    2

    Would you prefer a separate horn or one built into the housing?

    Built in Separate

    3

    Would you like the unit to be waterproofed?

    Waterproofed Non-waterproofed

    4

    What would you like the design to work with?

    Boats Vehicles Planes

    5

    How much do you want to spend?

    £0 - £7.49 £7.50 - £15.00 £15.00 +

    6

    What size will be best for it?

    under 75mm2 under 125mm2 under 200mm2

    7

    How often will you use the lights and horn mechanism?

    never sometimes regularly nearly all the time all the time

    8

    When do you usually use you R/C Vehicle, Plane or boat?

    in the rain sunny days cold days warm days

    Adding "turning Brakes" To A Lunchbox

    in Monster Trucks, 4x4, Wheelie Rigs and Crawlers

    Posted

    I had this idea the other day, and I mentioned it in another thread, but to avoid pulling that thread off-topic, I decided to start a new one.

    Turning brakes are a modification to the rear brakes on a vehicle that let you slow or lock one rear wheel to make it easier to turn. If you slow down the inside rear wheel in a turn, the outside wheel turns faster due to the diff, and the rear end swings around. Turning brakes are mainly used on sandrails or other off-road vehicles with very light front ends that tend to understeer under power (sound familiar?).

    The advantages I can see for adding something like this to a Lunchbox are many: the turning circle could be much tighter, especially under power or on loose surfaces; it would allow the possibility of slight steering/correcting during a wheelie; and it may even make it more stable in turns, and without altering the fundamental nature of how the car drives, i.e., poorly but in a very entertaining manner. It might even allow some weird stunts not possible any other way.

    I looked at the back of my Lunchbox briefly yesterday, and I had a few ideas on how to go about this. First, obviously, it will need some form of mechanical brakes. I think I can make brake shoes out of sticky-back felt, attached to a suitable backing plate, and use the inside rim of the rear wheels for brake drums.

    A second servo attached to the gearbox housing could actuate the brakes, and it could be connected to the main steering servo with a "Y" harness, so an extra channel wouldn't be necessary. There's plenty of room for a servo mount above the wheelie bar; I'll just have to come up with some sort of bracket to mount it. I'd probably set it up so the turning brakes would only kick in very close to full lock in each direction, so normal steering wouldn't be affected for minor inputs. And to disable the turning brakes altogether, just unplug the secondary servo.

    I'm going to look into this further later, because I really want to try it. In the meantime, any suggestions or ideas are welcome. (And if anyone has already done something like this on an RC car, links are welcome too.)

    steering mod Visit My forum picture of steering mod

    Lunchbox Front Suspension Arm!

    in General discussions

    Posted

    Today I ran my lunchbox into a tree - DOH! :) I have snapped the arm undernearth but am not sure what it's called. Its the black triangle plastic arm thats attached to the bottom of the suspension. Also does anyone know the best shocks for the lunchbox? I'd like to upgrade :)

    Many thanks

    some good shocks yhat you could get are some Ansmann Racing Aluminium Damper Set 85mm which are aluminium and are pre assembled. i found these a lot cheaper to get because a set of 4 of these are 14 from moddelsport uk as when i got my tamiya cva shocks they were 22 and are made of plastic

    saussage

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