PMEUMATICS

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good!

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so this is 1/8 but 1/4 will fit it

http://cgi.ebay.co.uk/ws/eBayISAPI.dll? ... TQ:GB:1123


Theo

[woody]

Theo ...
These sort of questions arises ALL the time in the early build of newbies.

The problem is your lack of understanding and the difficulty in transfering knowledge 2 you via this medium.

So I'll try once again.

I connect pneumatic ports together with nylon/plastic tube.
The nylon tube pushes into a fitting that is screwed into the port/s of the various components.
These fittings are available with many combinations of threads and push in tube sizes.

http://www.accltd.com/main.asp?category ... 4wodfF7aMA

I'd recommend 6mm nylon tube.

So your push fittings will be 1/8 bsp thread + 6mm tube for the ebay cylinder and 1/4 bsp thread + 6mm tube for the ebay valve.

Everything will then be connected together with 6mm tube.

... re=related


So ...You'll want fittings that suit your port thread size and nylon tube size.

Pic shows 1/8 bsp + 6mm push fit into cylinder then 6mm tube into a 1/4 bsp push fit.
AAA Battery in pic for scale.[attachment=0:37v7qes0]fittingss.jpg[/attachment:37v7qes0]

[woody]

Have a browse thru some of these ....

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Thx for the vid and pic

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Just wondering would 150psi and 1meter of pipe and a cylinder of 16mm bore and 54mm stroke and no buffer tank be able to 'flip' a robot IN THE AIR?

[woody]

How's your math?

So .... Lets take your cylinder 16mm bore and 54mm stroke @ 10 bar.

Force = .008 x 16 x 16 x 10 = 20.48 kgf

So you could potentially move a mass of 20.48 kg's a distance of 54mm OR

1/2 the mass twice the distance.... 10.24 Kg's a distance of 108mm.

You could possibly self right yourself or turn someone over with such a low force
NO AIR TIME.

NOTE:-
If your flipper tip lift to cylinder stroke ratio is 2 .... i.e. 108mm of flipper tip movement ...then you'll only be able to lift 10.24 kg's.

What you need is to maximise these two equations.

Energy = Pressure x Volume
AND
Power = Energy / Time

OR as much pressure as possible/practical in the biggest cylinder possible/practical and this ENERGY applied / delivered in the shortest possible time.

The time part of the equation is gas supply or flow dependant ...

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Ok then thank for the help
and I am the best in my school in maths! No joke!

Proberly get it up and running(some events and prob a buffer tank if got space in robot) then update parts in about a year or later or sooner! To 750 psi :shock:

on the plus got my cylinder on it's way!!!!!!!



Theo

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does this:
http://cgi.ebay.co.uk/METALWORK-PNEUMAT ... dZViewItem
fit onto this:
http://www.technobotsonline.com/10-bar- ... 32488.html
just wondering because the valve is G1/4 and the stud is bsp1/4?

[jonny]

it'd be easier to buy a valve with the coil. like this:
http://cgi.ebay.co.uk/5-port-solenoid-v ... 500wt_1156

this valve would work if you are going to be running of 24v. or you could buy one new from:
http://cgi.ebay.co.uk/Pneumatic-Solenoi ... 797wt_1141

i bought a 24v 3/8 valve from this seller. all seems good.