DIY die cutter

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COsurfer
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Joined: Sun Jul 11, 2010 1:42 pm
Location: Evergreen, CO

DIY die cutter

Post by COsurfer »

Here is my attempt at creating a die cut for my bases. I purchased 15 LF of standard double bevel steel die rule from www.ameriken.com. It comes in 2.5' lengths. The price was only $36 with shipping.

I used my CNC to route out a square design with a 1/8" bit on 5/8" plywood. I am sure the same is achievable with a hand router just more time consuming.
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The steel rule is very easy to cut with a pair of metal snips.
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Once I got all the pieces cut and placed in the base I used pieces of 2mm Ptex to wedge in the cracks to secure the steel rule in the base. I then poured epoxy over the whole setup to set up overnight.
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My plan is to use my press to push this die through some base. It seems like it should work. I will test it out tomorrow after the epoxy has cured.

It should be possible to do curved die cuts as well but I wanted to start with an easy square shape for testing.
skidesmond
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Post by skidesmond »

Clever. I'd like to see how it works. I don't understand the use of epoxy. Is the epoxy holding all together?
COsurfer
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Joined: Sun Jul 11, 2010 1:42 pm
Location: Evergreen, CO

Post by COsurfer »

The epoxy is locking the steel rule into place. It maybe to brittle for this kind of application. I will find out tomorrow when I test it.
team08
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Post by team08 »

Love the ingenuity (so don't take this the wrong way)!

I tried this long ago (well a DIY press anyways) and it was really hard to get to work right. It takes a lot more pressure than you would think to get through UHMW. I welded a steel frame and used a bottle jack, and it barely worked. I forget the rule of thumb but I think it is something like a few hundred pounds per linear inch of steel rule.

Since then, we have moved on to clicker presses and it is a world of difference. The thing about these machines is that they have a lot of force (20 tons on ours), but they also strike quickly which is key. The slower the strike, the more it stretches the material, which makes it a pain to interlock pieces. It also slightly rocks when it hits (maybe a degree or so), so the pressure moves across the cutting surface.

Also, it looks like your rule doesn't exactly meet at corners, and a professional die house will make it all seamless for you. Apple Die makes all of our dies and they are great to deal with, highly recommended. I imagine your design is in the couple hundred dollar ball park? They also provide the ejection foam.

Just some thoughts.. because I have been in your shoes! But go for it and see what happens!
COsurfer
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Location: Evergreen, CO

Post by COsurfer »

Thanks for the input Team08. I did some testing today with "ok" results. I would love to get a clicker but the thousand dollar starting price tag is a bit of an issue! I have a couple of other ideas that I think might work. I will post results
COsurfer
Posts: 357
Joined: Sun Jul 11, 2010 1:42 pm
Location: Evergreen, CO

Post by COsurfer »

Figured it out! I took my rubber mallet and smacked the ptex through the die cutter, smooth like butta.
Image

I might have to buy a new mallet every once and a while but its much cheaper then buying a clicker! So stoked to try this on my next build.
team08
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Joined: Thu Nov 10, 2005 3:34 pm

Post by team08 »

Haha, nice work! Yeah, I didn't mean to tell you to go out and buy a clicker, but rather buy a 6-pack and look for your local stamping/die/leather/whatever company and trade for a few seconds with the clicker.

Alas, you have a good enough solution!
TahoePowder
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Location: Reno, NV

Post by TahoePowder »

Is that the same diecut for the outside AND inside pieces?
COsurfer
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Post by COsurfer »

Yes, its a snug fit but that is what u need to make it look like its done right.
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falls
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Post by falls »

so you don't think you need a different die for the bits that get cut out and the cutting of the pieces to replace them?

I looked at a hand operated clicker press on the web today, looks interesting (but also $1250).
Don't wait up, I'm off to kill Summer....
COsurfer
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Location: Evergreen, CO

Post by COsurfer »

No, you use the same die for the inside and outside pieces.
rockaukum
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Post by rockaukum »

CO,
Very slick!
ra
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