Does anyone have a nice and big photo of a crimping tool for coin rolls? I'm pretty mean with a lathe & mill, and would love to go out to the garage and machine one out. However without some photo's of a proven design I foresee a long trail and error phase that I would love to avoid. Thanks....
Check out N.F. String and Sons website. They make a "Twist-n-Crimp" and a Deluxe model. Might be helpful.
he wants to see a in side of a crimper head. good luck.. all those motorized spinning crimpers do is mash down the paper. I believe the fully automatic coin rollers crimp the paper as it rolled around the coins. not quite the same process as using an NF String crimper or the Seacon above.
You got it EyeEatWheaties! I got the basics on the inner and outer deal, but I'm not sure if there's little tabs in the valley to help grab the paper when your turning. I dig what your saying on the big boy vs pre roll deals. I've seen some of those Big boys on the Net, and I guess you just feed in flat coin paper and it does the rest! To bad they cost a fortune!
I can tell you for a fact, that "Twist-n-crimp" doesn't do anything more than EyeEat said, which is mash the paper down.
I hear ya, I'm not looking for a pro bank job just something I can chuck in the lathe and close up the ends on a bunch of rolls. It would be nice to maybe see the inners of a pro machine and make a manual deal. I figurer it loads the coins into a slot - the paper rolls in around the coins while rolling the ends... Can't describe it, but I can see it in my head...
Rather than me trying to explain it. Go here and search. there are about zillion that you can infringe on! Read section 50 - it is of particular interest. It discusses hand rolled coin all the way back to 1938!! Figure 8 is a plan view of the type of crimper head that I think you are looking for. Good luck! if you figure it out, I'll buy one for each coin! http://www.freepatentsonline.com/2110685.pdf this is NF Strings Patent http://www.freepatentsonline.com/6536193.pdf
Thanks hamman88 these blue prints are detailed! Curious though, does yours roll the end or mash it? The prints say that it should roll the end as you twist, but such as life, the design doesn't equal real world.
the type of the paper plays a factor as well as the machining of the radii that curls the paper. Those that I have seen are poorly crafted, I would think that if the were 4 knurls inside with a curling radius that moves towards the center, that the tenacity would be better for the paper to roll forward under itself. I lost patience when I found my drill press wasn't true enough to turn small parts
I'm going to keep it simple, and just cut a lathe bit radius the shape of a knife that's .130 wide. Just drive it into some round bar. This should basically cause the end to begin rolling inwards on these pre-formed penny wrappers. I predict it will crunch them down but it should look half way decent? I probably could stair step it down, but I would have to use an index table on the mill and juggle two operations at once! I just want run out and chuck in the lathe, bang done than run in. Ouch! the pitfalls of an unheated Garage!!!
Hey there Ronterry. Did you ever get that close up photo of the crimping head ? If not, I have one, and can post a picture. Let me know, if you still need it.
