Pneumatics for my axe

[Guest]

Pneumatics for my axe

Can anyone suggest a good metal for the arm of my axe?

[geeza]

Pneumatics for my axe

A good quality aluminium or titanium are good suggestions. Also I recon on having spent about a grand on my feather axe when Ive finished.

[Guest]

Pneumatics for my axe

A grand?!

Any pics?

Thanks for the help,what did you use for the arm?

[Mouldy]

Pneumatics for my axe

mark- thzs rack is a HPC custom job... he sent me the technical drawing he sent to hpc :P

[geeza]

Pneumatics for my axe

A very good grade of tool plate ali, not made it yet, infact not even got the material yet.

[Guest]

Pneumatics for my axe

Ok,what kind of grade?

Ive never used ali so im not sure.

[maddox]

Pneumatics for my axe

We use a rather large 60*25*950 solid sheet of 7075T6 ali for the axearm of Obsidian. I guess a 30*12 will do for a feather then.
My supplier for this stuff is Dejond, Wilrijk, Belgium. So P&P would make it rather expensive to get it from there.
For the gears, racks and simular stuff we buy at Stoffels, also in Belgium. Or go pure custom, but thats a very expensive option.

[terrorhurtz]

Pneumatics for my axe

We use 2014T6 aluminium alloy for the axe shaft on THz.
The rack and pinion material is EN24 steel.

You could buy a length of round rack (not spur round rack) from HPC e.g. part 141-020-025 for £64 then drill and tap a hole in the end for a large bolt to hold the piston on.
see http://www.hpcgears.com/newpdf/round_racks_1_5mod.pdfhttp://www.hpcgears.com/newpdf/round_racks_1_5mod.pdf

The three most common strong aluminium alloys are:
1) 6082 - a weldable, medium strength alloy.
2) 2014 - high strength. Poor weldability. Not suitable for forming (bending).
3) 7075 - Strongest of the common alloys. Also not suitable for welding or forming. Tends not to be available in less than 1/2 thickness.

Generally you would go for the T6 tempers in the above alloys. This is the usual one most people supply.

All available from http://www.metalfast.co.uk/http://www.metalfast.co.uk/

Ed works in an aitcraft related business, so has access to alloys that us mere mortals can only dream about.

[Kenny]

Pneumatics for my axe

i found metalfast expensive compared to a ebay shop called alum-droitwich search for it they has a good stock of ali and can get what you want

[Mouldy]

Pneumatics for my axe

eds on about a material called alumec, strong as hell, machines very nicely and its not too expensive.. minimum thickness is 20mm plate though.

[Guest]

Pneumatics for my axe

Thanks for the help,I will look further in to this.

Do you think that an 8mm polycarb chassis could stand up to a fight?


(Message edited by dan_boulton on July 24, 200

[geeza]

Pneumatics for my axe

Beat me to it Dave.

[Guest]

Pneumatics for my axe

http://www.airtechnics.co.uk/catalogue/airtechnics_catalogue/pages/compact/isocompactcylinders.htmhttp://www.airtechnics.co.uk/catalog.../compact/isoco mpactcylinders.htm

Are these rams any good?

[maddox]

Pneumatics for my axe

If you have the wallet for them, these are usable.

[terrorhurtz]

Pneumatics for my axe

Compact but fairly heavy. They have a lot of excess material on the barrel.
Search on ebay for pneumatic cylinder.