Empty Dry powder extinguishers can be used ...or any bottle that has a suitable pressure rating .
Finding fittings to fit the bottle neck can be a pain.
Something like this .... http://cgi.ebay.co.uk/CAR-FIRE-EXTINGUI ... 4153445551
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Empty Dry powder extinguishers can be used ...or any bottle that has a suitable pressure rating .
Finding fittings to fit the bottle neck can be a pain.
Something like this .... http://cgi.ebay.co.uk/CAR-FIRE-EXTINGUI ... 4153445551
Can u just screaw the reg onto the co2 bottle?
If you get the correct regulator yes.
Would that not be a slightly large buffer tank for a featherweight or am i just missing the point a little :/
i have been looking at this and would this port size fit a 1/4
i know its 4mm but could u fit it in??
Theo
Define this
sorry the ebay link wouldn't work
so
i have been looking at this:http://cgi.ebay.co.uk/PNEUMATIC-CYL-...item58829dff18 and would this port size fit a 1/4
i know its 4mm but could u fit it in??
http://cgi.ebay.co.uk/PNEUMATIC-CYL-SMC ... 58829dff18
I'm fairly confident that the actual threaded port is 1/8 BSP.
BTW It's a 40mm stroke
[attachment=0:3j6572z2]4mm.JPG[/attachment:3j6572z2]
i know its 40mm stroke
but would a 1/4 nylon pipe fit in???
Yes.
good!
so this is 1/8 but 1/4 will fit it
http://cgi.ebay.co.uk/ws/eBayISAPI.dll? ... TQ:GB:1123
Theo
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.
http://www.youtube.com/watch?v=-Avzf-js ... 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]
Have a browse thru some of these ....http://www.youtube.com/watch?v=qtmpYSzprO8
Thx for the vid and pic
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?
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 ...
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
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?
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.
First one comes with a 24v coil (me 14v( can a 12v coil work with 14v?) and second one maybe
yes you can use a 12v on 14v. the second one should be fine. after you,ve bought just send them a message saying you want the 12v version.
Ok thanks get that done soon !
Does anyone know where to get a regulater from?
* Working Pressure: 1.5 - 8 Bar
* Maximum Pressure: 10 Bar
my bars is going to be 10 so... maybe not
i'm gonna be running on 10 bar with it, will be interesting :crazy:
HAHA !!!!
good luck :shock:
Quote:
Originally Posted by jonny
tell me how it goes hoplfully well :?
and my cylinder is max psi 145 and i am using it at 144 so........
Theo
back to regulators,
the ones on tecnobots## have a high(ish) flow rate but a low pressure rate (only 7 bar max outlet and a 10 bar inlet)
##http://www.technobotsonline.com/1-4-...regulator.html
i need a regulator with bsp1/4 conections, dont mined on the flow rate but not to rubbish and pressure rate has to at least 10 bars outlet and 69/68 bars inlet... so Any ideas on were to get one?
I got a Co2/Argon regulator 60 bar inlet 10 bar outlet
Its pretty hefty thou :/
May have to pop the question to Borrow on long term loan the high flow regualtor out of Dominator II
where did u get it from? and how big?Quote:
Originally Posted by jonophilpott
the only prob with long term loan is that it would mean buying it forever and the peeps from Dominator II mite need it again so
i'm still on the lookout for a regulator myself :(
its so hard to find good regulator that r cheap isnt it! (HINT,HINT :wink: :wink: robo challenge!)
I'd assume that it's probably one designed for use with a welder similar to these here,Quote:
I got a Co2/Argon regulator 60 bar inlet 10 bar outlet
http://shop.ebay.co.uk/?_from=R40&_trks ... Categories
has anyone used 10 bars on a valve with a working bars at max 8?
Yes ...
Should you.... NO the manufacturers max should be observed.
just got home and the cylinder has come!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!!!!!! :proud:
its inline with my ipod touch and its 5 inches long when its fired and the stroke is 40mm, and is 3 cm wide and the bore is 16mm
i am running it at 144 psi/10 bars and working pressure max is 145psi and max pressure is 160 psi
Im not having a dig but isnt that a little on the small side :/
Did you use the Calculators people suggested?
Ive calculated that above flipper tip you'll get an air time of 0.02 meters
its pretty small so mite sell it one ebay ad get a bigger one and its descripsion was so wrong :(
you could ask for a refund dew to misleading description.
Hopfully he or she doesn't read this!!!!!!!!
But good idea