antweight/beetleweight parts clearout

[Mouldy]

Looks good Josh, what issue exactly did you have? The piston not free enough? Pm me a price.

[Thunder arrow]

Same pm me the price

[josh]

I've had several messages so I'll post here rather than reply to everyone separately.
The valve has a shuttle in the centre with an o ring in the face that seals against the face on the buffer and holds back the pressure, this is held in place by the equal pressure in the chamber behind it and a small spring, when the pressure in the chamber is vented by the solenoid valve the shuttle should be fired backwards through the chamber releasing air from the buffer and up into the cylinder through an EDM cut slot to maximise flow rate/time. or that is the theory, in reality the shuttle does not seal against the face when empty which makes it impossible to fill the tanks as the air leaks through the cylinder. I have a feeling it may be fixable with a slightly stronger spring in which case it is a simple fix but it may need more tweaking than that and I sell it at the risk of it needing some proper work.
I've also been asked If I can supply the models to make it possible to edit and reprint/cut the parts, and the answer to that is of course, they are made in google sketchup and the cnc stuff is also in a .dxf 2d file.
I'd be looking for about 500, that doesn't even cover the cost of parts and the machining but for something that needs more work I feel it wrong to ask the full price of components and machining.
I can explain further or provide more detailed drawings if anybody is interested. I also have a 3d printed mock up of the pneumatic system and the adapter to make the check valve for filling compatible with a standard bicycle pump.
Feel free to contact me.

[josh]

A few more, poorly lit, pictures:







Open to offers, need some money to fund a redesign!

[harry hills]

im still up for the stuff josh, will send you a message in a few days

[josh]

No problem Harry.

I will accept offers around 425 for Pop! Includes the fully operational electronics with spektrum ar6300 receiver.

[josh]

I've reversed the bedding insert inside the chamber so that it now reduces the spring length and increases the spring pressure. It still doesn't fill with a hand pump which suggests it does just need a larger spring. It does however fire when I fill it with CO2 and it did scare the life out of me as it tried to jump out of my hands... video below:
http://s22.photobucket.com/albums/b330/ ... fe00cc.mp4

[PJ-27]

150psi from a hand pump! You must have forearms like a Gorilla!

[josh]

100psi, from a 15mm ID pump, that's about 12/13kg force same as the output from the robot. All I need is to hook them together and make it self sufficient

[PJ-27]

Not a bike pump then?