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Inexpensive CNC-cut roll-up templates

Poll Results: How likely would you be to use an inexpensive template if one were available?

 
  • 80% (4)
    OMG! Can I have one now? (very likely)
  • 20% (1)
    I'd probably use one (likely)
  • 0% (0)
    I might use one...then again (indifferent)
  • 0% (0)
    Pass! (unlikely)
  • 0% (0)
    I own my own CNC! (not a chance)
5 Total Votes  
post #1 of 5
Thread Starter 
Hi there,

I am looking to gauge interest in inexpensive CNC-cut roll-up templates in order to make laying out subs and speakers (such as the Gjallarhorn) easier for the DIYer. The concept is simple. You send me your design, and I will convert it into a thin plastic template that you can use to trace/transfer the panel layouts onto your panels, and then mail it to you.

I am thinking that I can create these templates for you in order to simplify your builds. I already have a good idea of the plastic I want to use and it is pretty sturdy. Being about ½ the thickness of a credit card, the plastic will roll-up quite nicely and will fit in a mailing tube. The plastic is not rigid enough to run a router along, but it is plenty for tracing with a pencil/pen. Also, if you put the stencil on the outside of the cabinet, you can use it to help you locate where the panels are internally…this is huge when it comes to determining where to locate all the screws/brads that will hold the sub together.
I need to price the template material, but am hopeful that it will be pretty inexpensive. I am not looking to get rich off of this, instead I want to get as many DIYers and potential DIYers out there in the garage making sawdust, so my goal is to put templates together for less than $40.
Right now this is a concept. Please let me know your thoughts/suggestions/concerns.

One concern I have is that I cannot know what thickness of wood someone will be using on a project. A project may call for ¾” wood, which when you really measure it will be around 0.68-0.77 depending…so what to do there? My initial thought is to simply cut the centerlines for the panels…the end user would then locate the panel accordingly.

Regarding IP. I realize it is illegal to photocopy a book without the publishers express consent and I feel that this could be similar. My thoughts are that, it is your digital file/blueprints and you are asking a person to simply build a fixture/jig based upon those blueprints. I personally don’t see a problem with this. It is something you could do on your own. For any project that I think is copyrighted, I will require proof that you bought it. I will not sell a template unless you can prove to me that you are entitled to it. One last thing on this…this will be for personaly/DIY use only! I realize that this whole paragraph is probably totally worthless if it were to go to court, but I just want to express my intentions as good. I am not looking to steal anyone else’s work and pass it along as my own.

Enough of that…let me know your interest in this. I own my own CNC (home built 60”x100”) so I can do one-offs, and provided I have the material, the turn-around times should be very quick.

Joel
post #2 of 5
I've tried templates and template routing of the side panels in a few tapped horn builds.

While it sounds like a great idea, when I actually did it, it was a disaster.

I'm sure that most of that is due to the way I did things. The template has to be rigid enough to not deflect. That means that you have to leave webs in place to keep things rigid.

And - even with an accurate and rigid template - it was not accurate enough to assemble 1/2" nominal plywood into 1/2" actual grooves and actually have things line up when I tried to put the other side on.

The idea of a template for layout sounds great though. Erich and I actually talked a bit about this for my larger designs a while back, because there is no way to affordably flat-pack them.

As far as IP concerns? Thank you for acknowledging it.
As far as my stuff? Anything I have shared on the Internet to date is in the public domain, so it is pretty much a case of do what you will. Any future designs I share will be released under a Creative Commons license expressly to preclude commercial use.

If you'd like DWG or DXF files of any of the public-domain designs, send me a PM.
post #3 of 5
Thread Starter 
Quote:
Originally Posted by lilmike View Post

I've tried templates and template routing of the side panels in a few tapped horn builds.

While it sounds like a great idea, when I actually did it, it was a disaster.

I'm sure that most of that is due to the way I did things. The template has to be rigid enough to not deflect. That means that you have to leave webs in place to keep things rigid.

And - even with an accurate and rigid template - it was not accurate enough to assemble 1/2" nominal plywood into 1/2" actual grooves and actually have things line up when I tried to put the other side on.

The idea of a template for layout sounds great though. Erich and I actually talked a bit about this for my larger designs a while back, because there is no way to affordably flat-pack them.

As far as IP concerns? Thank you for acknowledging it.
As far as my stuff? Anything I have shared on the Internet to date is in the public domain, so it is pretty much a case of do what you will. Any future designs I share will be released under a Creative Commons license expressly to preclude commercial use.

If you'd like DWG or DXF files of any of the public-domain designs, send me a PM.

Thanks lilmike. I agree that these templates that I am thinking about are not rigid enough to run a router against. So, pretty much just a tool for layout. Still thank you for your input.
post #4 of 5
I absolutely interested in the prospect of having templates available for the more complex horn builds. cool.gif
When you are building two or more, the though of measuring and drawing out all the folds twice for each cabinet is not a fun process.
That would be a huge time saver and take much of the pain out of the build.
With a template, it would simply cut it, and assemble. smile.gif

The only caveat would be that the plastic sheeting be thick/rigid enough that it lays reasonably flat to make tracing easy.
post #5 of 5
I for 1 would gladly pay $50 to save all the time of the measurements. I never though of using a router with something like this, IMO the tracing would save so much time on a build like the G-horn, especially being able to do both sides so you can screw in all the right places!. The type of plastic you are thinking of using would be good if it's what I think it is. You can send the kits in 2 or 3 pieces and just line it up on the board and tape it down, simple and would be cheaper to ship since it would be in a smaller tube.
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