BeardedGunsmith:
That looks really nice!
I would be interested in a die set.
Do you change the center pin to get #10 or #11 cap sizes, with the #10 pin being just a little smaller?
How do you ensure that the middle piece (punch) aligns with the outer piece (die)? Do you punch out a flat disk from your sheet stock first? Or do you use a cut square? Or, is the upper ring of the die a guide for the punch? Is there a slot for the stock to slide in just below it? Your photo doesn't show this detail very well.
From what I have seen, the wall thickness of the commercial caps has been measured at .008" or 0.2mm. Will that stock thickness work in your die?
Have you tried soft copper and aluminum stock materials in your die in addition to brass? Those materials in .008" are available from ebay and Amazon sellers. I have already obtained some.
I'm not going to use the Prime-All composition since it is corrosive BC it contains chlorate. Same problem with the toy caps.
I'm going to try the lead nitrate/hypophosphite double salt primer composition (EPH 20) instead. (US patent 4432819) I have already obtained the necessary chemicals.
That looks really nice!
I would be interested in a die set.
Do you change the center pin to get #10 or #11 cap sizes, with the #10 pin being just a little smaller?
How do you ensure that the middle piece (punch) aligns with the outer piece (die)? Do you punch out a flat disk from your sheet stock first? Or do you use a cut square? Or, is the upper ring of the die a guide for the punch? Is there a slot for the stock to slide in just below it? Your photo doesn't show this detail very well.
From what I have seen, the wall thickness of the commercial caps has been measured at .008" or 0.2mm. Will that stock thickness work in your die?
Have you tried soft copper and aluminum stock materials in your die in addition to brass? Those materials in .008" are available from ebay and Amazon sellers. I have already obtained some.
I'm not going to use the Prime-All composition since it is corrosive BC it contains chlorate. Same problem with the toy caps.
I'm going to try the lead nitrate/hypophosphite double salt primer composition (EPH 20) instead. (US patent 4432819) I have already obtained the necessary chemicals.
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