Comments on: Pneumatic autovalve

By: Sariel

Sariel — Tue, 19 Jul 2011 16:31:22 +0000

@Phillip You mean you want to provide air from one pump and have several valves? Then all you need to do is to make one compressor and several motorized valves. There's no need to combine them into one unit.

By: Phillip

Phillip — Tue, 19 Jul 2011 16:22:45 +0000

I would like to propose a challenge to you. Would it be possible to operate 2 or more pnuematic autovalves with just one pump?

By: Sariel

Sariel — Mon, 25 Oct 2010 18:10:55 +0000

@Gert No, it is not possible.

By: Gert

Gert — Mon, 25 Oct 2010 17:56:22 +0000

My comment was a question @ sariel

By: Gert

Gert — Sat, 23 Oct 2010 11:14:43 +0000

Is is also possible to pump air with the following item?:

http://www.bricklink.com/catalogItem.asp?S=5116-1

By: Diamondvise

Diamondvise — Fri, 25 Jun 2010 14:35:59 +0000

Great idea! I’m using it just now in my robotic arm. THX Sariel!

By: Sariel

Sariel — Sat, 01 Aug 2009 07:50:27 +0000

@Jeffrey D No, if you adjust gear ratios well the absorbers should be able to push motor back once it stops. I've seen someone doing it with a valve, just can't remember the link.

By: Jeffrey D

Jeffrey D — Fri, 31 Jul 2009 22:27:48 +0000

@Sariel If the shocks are enough to overcome the clutch and push the valve closed when the motor is off, then aren't they also strong enough to just hold it closed while the motor runs? I've been working on this all morning and can't for the life of me find a solution I like

By: Sariel

Sariel — Fri, 31 Jul 2009 08:23:20 +0000

@Jeffrey D Use a clutch gear and two opposing shock absorbers.

By: Jeffrey D

Jeffrey D — Fri, 31 Jul 2009 07:49:40 +0000

Me again, been looking around online for a pf controlled valve that automatically resets to the neutral position when the motor is not running. If you have anything it would be extremely useful, thanks.

By: Sariel

Sariel — Fri, 24 Jul 2009 11:21:46 +0000

@Tom I think there will be a great chance of knobs getting jammed against each other and against the switch.

By: Tom

Tom — Fri, 24 Jul 2009 11:02:11 +0000

This is a fantastic invention, well done! I’m planning to use it soon on a model of a Schaffer wheel loader. I have a suggestion that might improve it – instead of using the single cams for pushing the pneumatic switch could you use a cross shaped 4-way cam, maybe the black technic knob wheel – 32072 – http://www.bricklink.com/catalogItem.asp?P=32072 ?
I think this would minimise the delay in changing the switch direction as it would push the switch with 4X the frequency. I haven’t tried this yet, but what do you think?