Den 2021-01-25 kl. 00:00, skrev dave engvall:
Worst case you find a scrap automotive spring. It is probably
something like 5160. Torch cut a piece. Anneal, forge, mill, grind,
etc to desired shape. Heat until it is not magnetic, quench in oil.
Temper back to about Rc 50. Test. The first try
One way is to use Beryllium copper.
If you have a local PCB supplier, they will etch the parts from a .dxf
They normally keep stock since the material is used as battery springs.
Otherwise, a laser cutter who does saw blades might have material.
There's also steel binding strap used in crate
Old hacksaw blade as a place to start? Should be close in dimention and easy to
come by. Might be a bit on the brital side but think you could temper with
propane plumbers torch?
On January 24, 2021 3:02:56 PM PST, andy pugh wrote:
>On Sun, 24 Jan 2021 at 22:13, Nicklas SB Karlsson
>wrote:
On Sun, 24 Jan 2021 at 22:13, Nicklas SB Karlsson wrote:
>
> Need a small springs, not very many, very simple flat metal. Force in
> middle should be around 150N and guess 45mm long, 10mm wide , 0.6mm
> thick will do the trick. Anybody have any idea where it is possible to
> buy suitable
Worst case you find a scrap automotive spring. It is probably something
like 5160. Torch cut a piece. Anneal, forge, mill, grind, etc to desired
shape. Heat until it is not magnetic, quench in oil. Temper back to
about Rc 50. Test. The first try may not be good. Adjust as necessary in
150N for how much travel?
On 1/25/2021 00:11, Nicklas SB Karlsson wrote:
Need a small springs, not very many, very simple flat metal. Force in
middle should be around 150N and guess 45mm long, 10mm wide , 0.6mm
thick will do the trick. Anybody have any idea where it is possible to
buy
Need a small springs, not very many, very simple flat metal. Force in
middle should be around 150N and guess 45mm long, 10mm wide , 0.6mm
thick will do the trick. Anybody have any idea where it is possible to
buy suitable material?
Have been looking on a used handsaw, probably rather good
