Maybe you can glean some ideas to improve your machine from here.
In the 60's, there was an article in MR, where the author described how to build such a machine ( almost the same as shown above ) yourself. Here's a compendium of rivet-making techniques.
Wow, lots of ideas to do the same thing. I wish I could find the original thread I saw. The fellow made his from machined aluminum blocks I think and it was complicated. I decided to make something simple... for my simple models.
Here's the machine that Herb made for me. I have not made a hammer for it but use a little "jewelers" hammer to give it a whack. I made various jigs from very hard wood for different apps. As can be seen, I usually scribe on the backside where I want the rivets and then whackety whack. This works on metals and styrene and once on a finger tip.
That's the Traub Semi-automatic Scale Riveter. The only thing not mentioned here is that the bottom die ring has a lip sized so, after putting the first rivet impression, by moving the material to make it rest against the outside edge will provide automatic spacing for the next one. Of course different rivet spacings will require different dies. OF COURSE the original article was printed AFTER I did a few rivet jobs with a nail and hammer. Oh well.... Jose.
____________________ Junk is something you throw away three weeks before you need it.
My home-designed & home-made combined hole punch/riveter; remarkably similar to those above.
Main difference is the adjustable automatic depth stop which, combined with spring, ensures that any sort of pull on the operating lever produces identical size/depth "rivets".
Unscrew the depth stop & it will happily punch holes neater & easier than can be drilled through steel/brass up to about 15 thou thick.
The heavy 'right angle' foot/baseplate bolts to a fixing I made on the rear of a lathe bed. The X & Y feeds of the lathe saddle then give accurate rivet spacing.
'' The X & Y feeds of the lathe saddle then give accurate rivet spacing.''
Now there's an interesting adaptation--
Much more versatile than pushing the previous rivet up against the rim of the bottom die, although no where near as quick.
There is an Allen Keller video that shows a fellow embossing rivets with a converted sewing machine- but offers no detail as to whether the serrated lower foot of the machine controls the spacing. But it was QUICK, and a shown sample looked great.
____________________ Fix it again, Mr Gates--it still works!"