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NEW... Pic of first CNC cut BackPacker skeleton!!!


Boggs

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Cutting the first Cuban mahogany skeleton as we speak. My machinist called his wife and told her it was going so well, he was going to stay and finish it! I just called to remind him about a router demonstration/class at Woodcrafters we are going to tomorrow... I will get the tops and backs ready to get glued on and have him cut the electronics access panel from the back (koa) and then I can glue that on. He is going to shape the neck heel so he can exactly match it for the neck pocket (which WILL have a slight backset) and then we can go to town finishng it hopefully before I cannot use my shoulder for a while (having 3rd surgery on it October 6th) and maybe so it will be ready for sale at the Musicians' Flea Market in Buffalo the end of October! I will probably have to disassemble the original prototype (my first born) to complete it though. That hurts...

 

 

Once that has proven the CAD program, we can get to work on the poplar paintable 3-piece body and get ready to cut that. Program is the same except cutting depths have to be programmed in. One foot in front of the other... :) Boggs

Check out my Rock Beach Guitars page showing guitars I have built and repaired... http://www.rockbeachguitars.com
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Here's the CNC skeleton minus the leg cut and neck rout to keep locating holes for jig until last cuts made. Top and back must be on first.

 

 

http://www.angelfire.com/ny5/boggs.com/CamelBackPacker/BackPackerCNC1W.jpg

Check out my Rock Beach Guitars page showing guitars I have built and repaired... http://www.rockbeachguitars.com
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Looks great Boggs! it will no doubt guarantee consistancy in your quality control issues. I see so far it is a 2D program, do you have CNC path developed to do the XY and Z path for the tops? I think your tops are crowned aren't they? and you going to fixture the neck and CNC that also? What is he using for a machine and controller? do you know what software he's using to develop the cutter path?
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Originally posted by caprae:

Lookin' good. Does it compare favorably to your hand made ones?

It will definitely favor shaping by hand in terms of consistency and time. It will cost me more to do, as I have to pay someone to do it, but it will work for the better in the long run. I still have to smooth it out and do a lot of hand work to get it to a finish state, but the consistency in the shaping and dimensioning will be worth it.
Check out my Rock Beach Guitars page showing guitars I have built and repaired... http://www.rockbeachguitars.com
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Originally posted by ellwood:

Looks great Boggs! it will no doubt guarantee consistancy in your quality control issues. I see so far it is a 2D program, do you have CNC path developed to do the XY and Z path for the tops? I think your tops are crowned aren't they? and you going to fixture the neck and CNC that also? What is he using for a machine and controller? do you know what software he's using to develop the cutter path?

We can do the Z direction as well. This will come into play for the rear or front routed simplified bodies meant for painting. We will be able to control the depth of the chambering which is not necessary in the creation of the skeleton for the premium exotic woods versions such as shown here.

 

I am not sure which pro CAD program the machinist is using, but for the first unit shown, it was cut on a Bridgeport. One of the Geko controllers for his CNC router is out for repairs. If I told you any more, I would have to kill you... :freak: Besides, that's all I know... :D

 

BTW, the tops are not presently crowned. they are only 1/4" thick, so it really leaves not a lot of opportunity for that. The painted versions may be different in that respect however...

Check out my Rock Beach Guitars page showing guitars I have built and repaired... http://www.rockbeachguitars.com
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