antweight/beetleweight parts clearout

[josh]

Re: antweight/beetleweight parts clearout

Bump, Philip do you still want those pieces?
Everything still available apart from the flea, brushless motor, 12a brushless esc and the eggbeater set up/

[philippos]

Re: antweight/beetleweight parts clearout

yes i'll take, the reciver, the speedos and the 4 wheels, will paypal do for payment?

[josh]

Re: antweight/beetleweight parts clearout

No problem, Yes paypal is fine my address is josh.valman '@' hotmail.co.uk If you could add an extra 2 pound just to cover the extra postage I can have that posted tomorrow for you.

Cheers,
Josh

[philippos]

Re: antweight/beetleweight parts clearout

pm sent.

[josh]

Re: antweight/beetleweight parts clearout

Still have parts left, harry do you still want those pieces?
I'm also considering selling my pilot chamber valve experiment which is basically a 4wd version of POP! a pneumatic antweight. The pneumatic system doesn't work but could do with some tweaking. the system is fully cnc machined from aluminium and sits in a 3d printed nylon chassis. It uses a 8mm parker solenoid valve to actuate the pilot chamber, the issue is the shuttle inside the chamber and getting it to move effectively. the robot comes as is with all the electronics and the shuttle issues. This cost serious money to experiment with and I'm only going to sell it for the right price as I don't have the time to get it working properly but I'd like to see it go to somebody who could do something with it. contact me for a full breakdown of parts included. I'm only going to sell this to somebody I am confident can do something with this. It's made to run at 100psi and weighs 150g.

[Mouldy]

Re: antweight/beetleweight parts clearout

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

[Thunder arrow]

Re: antweight/beetleweight parts clearout

Same pm me the price

[josh]

Re: antweight/beetleweight parts clearout

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]

Re: antweight/beetleweight parts clearout

A few more, poorly lit, pictures:







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

[harry hills]

Re: antweight/beetleweight parts clearout

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

[josh]

Re: antweight/beetleweight parts clearout

No problem Harry.

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

[josh]

Re: antweight/beetleweight parts clearout

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]

Re: antweight/beetleweight parts clearout

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

[josh]

Re: antweight/beetleweight parts clearout

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]

Re: antweight/beetleweight parts clearout

Not a bike pump then?