DavidL Report post Posted April 8, 2014 stumbled on http://elfitakorea.blogspot.ae/2014/03/perforative-puch-press.html a small manual clicker press that can cut small dies and also larger dies too with repositioning. For those who have used dies before on manual clicker does this seem right for 2/3 leather, kangaroo chrome tan and veg? The handle in no where close to the size of weavers handle, but i suppose this is for finer leather.They also have a mallet which can be put over the entire die and be struck- is this manual operation strong enough to cut through leather veg tan. Pricing is a bit much for a small cutting area, yet the price is cheaper than a shop press converted die cutter and more convenient - plus it is looks well made Quote Share this post Link to post Share on other sites
Northmount Report post Posted April 15, 2014 The lever operates an eccentric, so substantially multiplies the force applied to the cutting die. For those that can remember some of the science they did in grade school, this is equivalent to a class 2 lever. Looks like a good idea. Would like to hear from anyone that has purchased it. Tom Quote Share this post Link to post Share on other sites
Andrew Chee Report post Posted April 15, 2014 Nice looking tool. If it has enough pressure I would say that it's a good price. $340 for something like that isn't bad. Setting up a shop press will cost almost as much and won't be as easy to use. The small size isn't that much of a problem because you can use several passes to cut a larger die. As long as it will fit between the two posts you should be able to cut it. Theo Ly question is how much for pce that thing applies. Andrew Quote Share this post Link to post Share on other sites
DavidL Report post Posted April 15, 2014 Nice looking tool. If it has enough pressure I would say that it's a good price. $340 for something like that isn't bad. Setting up a shop press will cost almost as much and won't be as easy to use. The small size isn't that much of a problem because you can use several passes to cut a larger die. As long as it will fit between the two posts you should be able to cut it. Theo Ly question is how much for pce that thing applies. Andrew shipping is the only problem it is 220 to Canada. Shipping by boat or pallet will knock it down to 50- 100 bucks id imagine. If only someone had a company where they contact people who are visiting those places for a few days and they live in your country. They could bring it back in their luggage and they would probably do it for 50 bucks. The lever operates an eccentric, so substantially multiplies the force applied to the cutting die. For those that can remember some of the science they did in grade school, this is equivalent to a class 2 lever. Looks like a good idea. Would like to hear from anyone that has purchased it. Tom Im unfamiliar with a class 2 lever strength. What do you reckon a weaver manual press is ? I may get this in the future if it can cut through 4/5 veg tanned leather. Il ask if they can post a video. They have a few videos on youtube show casing their tools. Maybe they will post one if I tell them there is some interest within this site. Quote Share this post Link to post Share on other sites
WyomingSlick Report post Posted April 15, 2014 I think it is overpriced and then the cost to ship it makes it even worse. Basically it is just using an eccentric cam principle, and any decent machinist could build you one. You might check around your area for amateur machinists and show them a picture and get a price quote from them. Quote Share this post Link to post Share on other sites
Northmount Report post Posted April 15, 2014 The mechanical advantage (MA) of a class 2 lever is the length of the long arm divided by the short arm. The eccentric in this case is the short arm. So for example, if the lever is 24" long and the eccentric is 0.5", then the MA is 48. So if you are pushing down with 10 lb force, the force on the die will be 10 lbs x 48 = 480 lb. And yes, this would be easy to build and take up much less space than a hydraulic shop press modified for clicking. Other than the upper and lower plates, I likely have most of the parts required in my "junk box" (several bins). I have a 20 ton shop press, but it is an hour's drive away. Might have to think about this a bit more! Tom Quote Share this post Link to post Share on other sites
DavidL Report post Posted April 15, 2014 ah. if those calculations apply to that specific machine it should be 1000lb for 10lb of force? Anyways, I emailed them asking them to post a video on there youtube channel because it would help out people on this forum. Quote Share this post Link to post Share on other sites
Northmount Report post Posted April 16, 2014 ah. if those calculations apply to that specific machine it should be 1000lb for 10lb of force? Anyways, I emailed them asking them to post a video on there youtube channel because it would help out people on this forum. Where are you getting your numbers from? You are assuming an MA of 100. How did you derive that number? Tom Quote Share this post Link to post Share on other sites
DavidL Report post Posted April 16, 2014 i assumed eccentric of .5" was the length of the handle, i guess i was wrong. Didn't take any science courses in high school... Quote Share this post Link to post Share on other sites
Tex Shooter Report post Posted April 16, 2014 It looks like the stroke on that little press is about 1/4 inch in one revolution. If that is right it could exert about 5000 pounds of force. Interesting design, but I would like to see larger guide rods, because you would have to have the die centered perfectly to keep from bending them. -- Tex Quote Share this post Link to post Share on other sites
DavidL Report post Posted April 17, 2014 emailed them and they are in the process of editing the video. They confirmed it should be able to cut 7 oz well. Quote Share this post Link to post Share on other sites
