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Old 08-05-2013, 05:32 PM   #1
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Default Degree project ideas What Problems/challenges/difficulties do people have in RC??

Hi everyone,
I am currently doing a mechanical engineering degree, and we have a project just started where we have to take a "problem" and design/redesign an existing product to solve it!

I am highly interested in r/c, racing many classes of off road, and was wondering if any of the community out there have any ideas!!

Niggly things that frustrate you while working on cars, annoying things thst constantly happen, what's out there!!

Cheers,
Luke
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Old 08-05-2013, 06:21 PM   #2
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Ive had the following ideas that would make good ME projects... some might not be the best undergrad projects, though.

1) Sort of elaborate on the RC Crew Chief sortware... Maybe design a software that allows the user to input the upper, lower control arm lengths, chassis pickup points, corner weights, etc, and it would plot the geometric rollcenters, calculate the shock/spring motion ratios, wheel frequency, natural frequencies, etc for given spring rates, CofG height, camber curves, bump steer curves, etc.

2) Mount a linear potentiometer on each shock body and design a datalogger that would plot the suspension movement/shock velocity of a touring car over the course of a lap.

3) Design/build an rc car shock dyno... This may be difficult, as finding a load cell that has the appropriate resolution may be cost prohibitive.

4) Design/build an rc car shaker rig... this would allow you to test/simulate #2 in a controlled environment and prove that X and Y changes to a shock(validated with your #3 dyno) produce the desired handling trait changes in roll and bump.
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Old 08-05-2013, 06:49 PM   #3
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I know this is more off-road than on-road and something very little, but I am always frustrated when I break a suspension arm. Might not be big enough for your project though...
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Old 08-05-2013, 07:26 PM   #4
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How about a differential with continuously variable lockup, controlled by an external actuator (knob, lever, etc.)? If the adjustment were fixed, one could run some laps, make an instant adjustment, then see the results. It could also be controlled by a servo for on-the-fly adjustments.

It's not a simple design, but it is cool.
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Old 08-05-2013, 07:26 PM   #5
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Frustrations/projects:

1) Leaking gear diff. Design a proper tensioned oil seal to prevent leaks. Or
re-design the main diff housing to block oil from coming out. Or if you can tap
liquid dynamics, design a grease that can control the the diff action in
substitute of silicon oil and putty.

2) Small onboard gadget that has a small screen like (cycle computers) that
can read and store runtime, max speed, total distance, temps, rpm etc.

3) Front brakes on F1 RC cars. Or a 4WD F1 kit (just to have 4 wheel braking).

4) For the radio, design some feedback circuitry much like the PS3's
dual shock controller that transmits shock feedbacks to your radio.
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Old 08-06-2013, 02:00 AM   #6
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Thanks for the suggestions!Have taken them all down, and will do some thinking,An idea I came up with myself is a reverse polarity module to stop reverse-voltage destroying speed controllerswhen you plug those lipos in while rushing to catch a rsce start!!Keep the ideas comingLuke
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Old 08-06-2013, 02:46 AM   #7
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Quote:
Originally Posted by kartyboy94 View Post
Thanks for the suggestions!Have taken them all down, and will do some thinking,An idea I came up with myself is a reverse polarity module to stop reverse-voltage destroying speed controllerswhen you plug those lipos in while rushing to catch a rsce start!!Keep the ideas comingLuke
An electronics project for a mechanical engineer? You are going to have quite a range of experience by the time you graduate!
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Old 08-06-2013, 02:53 AM   #8
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I have trouble winning, can you help me with that
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Old 08-06-2013, 03:01 AM   #9
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I am doing a Joint Mechanical/electrical degree, doing a specialisation in mechatronics, and just found out earlier that it doesnt have to be strictly "mechanical" project!
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Old 08-06-2013, 03:25 AM   #10
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Quote:
Originally Posted by RogerDaShrubber View Post
I have trouble winning, can you help me with that
Maybe figure out how to succesfully complete a thumb transplant?
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Old 08-06-2013, 06:08 AM   #11
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Default F201

Quote:
Originally Posted by Airflow View Post
Frustrations/projects:

1) Leaking gear diff. Design a proper tensioned oil seal to prevent leaks. Or
re-design the main diff housing to block oil from coming out. Or if you can tap
liquid dynamics, design a grease that can control the the diff action in
substitute of silicon oil and putty.

2) Small onboard gadget that has a small screen like (cycle computers) that
can read and store runtime, max speed, total distance, temps, rpm etc.

3) Front brakes on F1 RC cars. Or a 4WD F1 kit (just to have 4 wheel braking).

4) For the radio, design some feedback circuitry much like the PS3's
dual shock controller that transmits shock feedbacks to your radio.
Check out Tamiya f201 on rc tech and ebay.This is a 4wd f-1 car.I own three of them and they are great.Also check out kyosho f-ten nitro.
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Old 08-06-2013, 09:10 AM   #12
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Quote:
Originally Posted by RogerDaShrubber View Post
I have trouble winning, can you help me with that
You beat me to it.

A slightly smaller steering wheel for my transmitter (radiopost).
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Old 08-06-2013, 09:34 AM   #13
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Some kind of device that flips the car over when you land on your lid...I need one of those really bad.
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Old 08-06-2013, 09:58 AM   #14
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Soft walls..
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Old 08-06-2013, 10:09 AM   #15
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Ditto the soft walls. How about a modular track system with specialized pieces to form radiused bends instead of straight pipes ending at corner dots. Something like a flexible click track from CRC.
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