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PostPosted: Sat Apr 28, 2012 7:34 pm 
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Joined: Wed Jul 02, 2008 11:44 am
Posts: 1005
Location: SE Michigan
First name: Kenneth
Last Name: Casper
City: Northville
State: MI
Country: U.S.A
Focus: Build
Had a circuit board go out on my garage door opener during the week, so I needed to replace the opener today. I set up a quick program to cut kerfed linings and let it do its thing while I was working on the garage door. I don't normally make my own linings, but I needed to make some from Michigan woods for a project I have going on, and I had never played with the engrave feature of my Rhino app. So a great excuse to shake the new machine down.

When I ran the program, I noticed the spindle cut grooves in random order rather than work from the bottom to the top or the top to the bottom. I'm sure that is an easy fix, but I haven't gone back into the program to tinker with it. I just let the machine do its thing.

With $6K invested in my setup and now 4 linings in the bag, that works out to $1500 per lining laughing6-hehe

Ken

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PostPosted: Mon Apr 30, 2012 12:27 pm 
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Joined: Mon Mar 26, 2007 6:42 am
Posts: 564
Location: United States
First name: Stephen
Last Name: Ziegenfuss
City: Jackson
State: MI
Zip/Postal Code: 49203
Country: USA
Focus: Build
Status: Semi-pro
Hey Ken,

Looking good!

I assume you are using a vacuum hold down, and you only used the mill to cut the kerfed lines?

Also, depending on your CAD - G code software, in the lower cost software packages, the code will generate the cuts in order which you select the vectors...

Stephen

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PostPosted: Mon Apr 30, 2012 5:05 pm 
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Joined: Wed Jul 02, 2008 11:44 am
Posts: 1005
Location: SE Michigan
First name: Kenneth
Last Name: Casper
City: Northville
State: MI
Country: U.S.A
Focus: Build
No, nothing scary here! I am simply slowly working the machine into my building! With two new guitars now getting underway, I will be experimenting with the CNC as I go. These guitars don't have to be done until the end of the year, so I do have time to poke around with it.

I am enjoying having the machine in the shop, though. I spent an evening after work one day last week, routing the radius on the face of the neck and tail blocks and also made up a matching radius on a clamping block. In the past my neck and tail blocks were made using my bandsaw and sander and were always good enough. But I admit, it was nice to let the CNC whittle away at the radius while I was off doing something else. These simple little projects have also got me much more acquainted with CAM and the CNC machine, so though trivial, are helpful.

I haven't played with the vacuum yet. I do have a smaller Thompson vacuum, the kind typically used in veneering that should work, and I have a few of the fixtures the former owner made. But for right now, I am just holding the pieces down with double-sided tape. I bored locating holes every two inches in a large spoil board bolted to the aluminum table. Even though I am not using the pins right now, they help in lining up the work pieces to the X and Y axes.

Stephen, for the kerfing, I put the radius on the one edge using my router table. Easy to do with one pass over the bit. All the CNC cut were the kerfs.

Ken

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PostPosted: Wed May 02, 2012 11:42 am 
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Koa
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Joined: Tue Nov 28, 2006 1:44 pm
Posts: 1105
Location: Crownsville, MD
First name: Trevor
Last Name: Lewis
City: Crownsville
State: MD
Zip/Postal Code: 21032
Country: USA
Focus: Build
Status: Semi-pro
Welcome to the club Ken! I'm happy to see that your new helper is being productive!

Make one more set of linings and you'll be done to $750 each... :)

Trev

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PostPosted: Wed May 02, 2012 9:17 pm 
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Location: SE Michigan
First name: Kenneth
Last Name: Casper
City: Northville
State: MI
Country: U.S.A
Focus: Build
:lol:

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PostPosted: Wed May 09, 2012 2:23 pm 
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Joined: Fri Jan 25, 2008 9:55 am
Posts: 919
Location: Traverse City Michigan
You shoulda told me you had a CNC Ken... beehive

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PostPosted: Wed May 09, 2012 4:33 pm 
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Brazilian Rosewood
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Location: Buffalo, NY
First name: Robert
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They look great Ken. Which machine did you buy?

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PostPosted: Wed May 09, 2012 10:05 pm 
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Joined: Wed Jul 02, 2008 11:44 am
Posts: 1005
Location: SE Michigan
First name: Kenneth
Last Name: Casper
City: Northville
State: MI
Country: U.S.A
Focus: Build
Ken: Got the CNC after I met with you. I had been noodling getting something for months then picked up a used one locally. If you need access to one, let me know! BTW, got the white pine soundboard joined and thicknessed to about 140 thou, where it wiill be until I get the Petoskey Stone rosette in. I'm liking how this guitar is coming together.

Bob: Thanks! The machine is a K2 3925G with a 3 hp Columbo spindle. Should do most anything I want to throw at it. I have been experimenting with inlays lately. The more I use it, the more I like it!

Ken

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