Pneumatic

[Guest]

I have built a robot on Rexs Robot Challenge and am looking to update the machine to pneumatics. I am on a budget and need to know what i need to start as i have no experience in this area
Can anyone help?

[ewan]

Pneumatic

Heres a great place to start:

http://www.technobots.co.uk/Technical/Guidance/A%20Guide%20to%20the%20Design%20and%20Use%20of%20L ow%20Pressure%20Pneumatics%20On%20Fighting%20Robot s.htmhttp://www.technobots.co.uk/Technica...e%20Design%20a nd%20Use%20of%20Low%20Pressure%20Pneumatics%20On%2 0Fighting%20Robots.htm

It covers heavyweight pneumatics but featherweight pneumatics are exactly the same really

Youll be looking at quite a large price tag for a conversion to pneumatics Im afraid though

[Guest]

Pneumatic

How can i get hold of Co2 ? If i use air what sort of cylinder is best ? and where can i purchase one ?

[ewan]

Pneumatic

Co2 is available at 99.9% of Robot Events so you can just refill your bottles. Use the link I gave you so that you can calculate how big a stroke and bore ram you want. Technobots sell some cheap low pressure rams, but check the for sale section in the forum where a few can be found.

[team_ireland]

Pneumatic

If it is still for Rex Robots challange then I would surgest a bicycle pump with a compresser set up. They are quite cheep. Will give more info later when I find it on my other computer.
Regards
Ian

[storm]

Pneumatic

Tom - John Reid from Terrorhurtz has a good pneumatics how to on his website. Again its aimed at heavyweights but could be of some use.

http://www.johnhmreid.dsl.pipex.com/killerhurtz/howto/pneumatics.htmhttp://www.johnhmreid.dsl.pipex.com/...pneumatics.htm

Ed
http://www.teamstorm.comhttp://www.teamstorm.com

[woody]

Pneumatic

http://www.teamdavinci.com/understanding_pneumatics.htmhttp://www.teamdavinci.com/understanding_pneumatics.htm

[Mouldy]

Pneumatic

If it is for Rexs challenge- I wouldnt suggest bike pumps...because there crap, You can pick up cheap rams of ebay, Or im sure if you place a wanted add on the forum you will be able to pick one up- Also I looked into it exstensivly and my old feather Turbine 3 would of been classed as illegal for using a compressor.

If its not for RRC you can buy bottles from Jackson+keay, a valve, fittings and pipe from technobots and you could probably pick up a small regulator of someone on the forum- or get a welding reg moded.

Jackson & Keay Ltd
Private Road Number 7
Colwick Industrial Estate,
Nottingham,
NG4 2JW
01159617113

Hope this helps.

[Guest]

Pneumatic

Does anyone who how to control a solenoid 5 port valve by radio control ?

[blazerbotics]

Pneumatic

The normal way is to use a RC switch:

http://www.technobots.co.uk/en-gb/dept_78.htmlhttp://www.technobots.co.uk/en-gb/dept_78.html

or you can just have a servo hitting a microswitch.

[Guest]

Pneumatic

I am looking for a M5 solenoid 5 or 4 port valve but am struggling to find one. Anyone know where i can get one ?

Tom

[maddox]

Pneumatic

1/8 bsp is more common. M5 is realy small.

[wazio]

Pneumatic

I have started a featherweight flipper project with a friend of mine. I have the whole system picked out but the valve and cylinder. I know I will use something in the 38mm x 160mm range for the cylinder. But as far as the valve I have not had much luck finding many good ones. I need a double acting valve with the best possible flow and PSI ratings. Anybody have something that they would recommend? Thanks!

~Chad

[woody]

Pneumatic

Hi Chad ,
What is your gas ... CO2 or Air?
How much will your regulator flow ........if its flow rating is low youll need a buffer tank.
Port size of your 38mm x 160mm ( 1.5 x 6 ) ram ?
Can you add extra ports or increase their size yourself?

Woody

[wazio]

Pneumatic

Hey Woody, thanks for the post! You have helped alot of US builders, I was kinda hoping that you would reply.

This system is going to use Co2 for power.
I have been looking at this regulator to use. http://www.palmer-pursuit.com/online-catalog/stabilizer-female.htmhttp://www.palmer-pursuit.com/online...zer-female.htm

Some people around here have used it and I have not herd any bad things. Any super secret UK regs that you think might be better? I was kind of planning of a buffer tank regardless to try to keep freezing from going on.

I have not actually picked out the cylinder yet, but I would like to get one with at least .25 (6.3mm) ports if possible.
My choice of Valve and will determine what cylinder I pick.
-I could go with a Spring return such as http://www.Mcmaster.comwww.Mcmaster.com part # 6498K548 @ 150PSI if I were to find a large valve that could really give some awesome flow.
- Or a regular aluminum double acting cylinder @ 140PSI
- Or a steel double acting @ 150PSI

Here is where I need some advice. What cylinder/regulator/valve combo would give me the best toss? I would like to have something like a 30pound Toro, little sister or any other nice flipper bot that you can think of.

~Chad