featherweight flipper systems

[maddox10]

Re: featherweight flipper systems

With FP , a low powered system still delivers a few 100kg
Surface of piston in cm²*pressure of CO2- 55bar= force in Kg.
Meaning a 40mm piston delivers 690 kg. - relative losses , give or take 600kg .

The 12oz bottle we use in Hannibalito III weights in at a hefty 1.1kg full.

A Burkert 5404 (reasonably affordable solenoid valve that can do the job) weights 660 grams.

Ram (40mm bore*80mm stroke), collector and buffertank, with PRV and dumpvalve, can be done in 2 kg

4.5 kg to 5 kg is a reasonable weight for a full weaponsystem.

[Danjr1]

Re: featherweight flipper systems

Are linear actuators worth the investment for a rear hinged lifter? I cant imagine they are very fast?

[Laser]

Re: featherweight flipper systems

I used a home made linear actuator and it was quite slow, but it worked

[mattsdragons]

Re: featherweight flipper systems

if you found one with a good amount of stroke and force then it could work

[Laser]

Re: featherweight flipper systems

easier and cheaper to make your own.

[mattsdragons]

Re: featherweight flipper systems

you would have to get a good drill though to get enough speed to make a good one though

[Danjr1]

Re: featherweight flipper systems

Would make a cr@p srimech though wouldn't it?

[mattsdragons]

Re: featherweight flipper systems

It would probably be fairly effective, just wouldn't have the same power as a gas system

[jonny]

Re: featherweight flipper systems

you'd be able to lift people and turn them other but you'd nether have the speed flip them with an actuator

[Danjr1]

Re: featherweight flipper systems

Weighed the robot and it's coming in at 8kg so a flipper looks possible now!

[Danjr1]

Re: featherweight flipper systems

http://cgi.ebay.co.uk/16oz-BRAND-NEW-Co ... 1818wt_725

Using this tank, I'll need an adapter won't I?

[maddox10]

Re: featherweight flipper systems

You'll need an adaptor and on/off valve -it is in the rules -, as pin valves have the disadvantage of opening the bottle when screwed in.

Easier solution is to buy a bottle with On/Off valve integrated.

The tread on that bottle is compatible with 1/2 BSP 14TPI, meaning you can easely buy parts that fit it.

[Danjr1]

Re: featherweight flipper systems

any idea where i could get an adapter?

[maddox10]

Re: featherweight flipper systems

Paintball shops look the best option.

But, straight from the rules.

9.6 Remote Isolation Valve
Gas cylinders that do not incorporate a valve (for example: the gas is released as soon as the cylinder is
screwed into it€Ÿs mating pneumatic connection) such as found on disposable welding bottles and €žfizzy
drinks€Ÿ machines must have an additional remote isolation valve accessible from outside of the robot.

[woody]

Re: featherweight flipper systems

http://cgi.ebay.co.uk/Lot-2-x-CO2-Adapt ... 27b3e29d21