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Glenn_Aycock
PostPosted: Sun May 24, 2015 9:15 pm 
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Cocobolo
Cocobolo

Joined: Tue Feb 17, 2015 6:03 pm
Posts: 165
First name: Glenn
Last Name: Aycock
City: El Lago
State: Texas
Zip/Postal Code: 77586
Country: United States
Focus: Build
Status: Amateur
Just finished this jig - based on similar designs I've seen around various luth forums. Looks promising but it still needs a few tweaks.

Image

The router itself is questionable, but I didn't want to permanently mount my good PC router on it.

Tomorrow I'm going to put a larger bit on it and add a dust collection port.


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Glenn_Aycock
PostPosted: Mon May 25, 2015 10:02 am 
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Cocobolo
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Joined: Tue Feb 17, 2015 6:03 pm
Posts: 165
First name: Glenn
Last Name: Aycock
City: El Lago
State: Texas
Zip/Postal Code: 77586
Country: United States
Focus: Build
Status: Amateur
Works much better with a 1/2" straight cut bit instead of a 1/4" spiral cutter. The depth keeps slipping. I'm not sure if it's the collet or the base. What a piece of crap.


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These users thanked the author Glenn_Aycock for the post: Bri (Tue Jun 02, 2015 9:14 am)
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Glenn_Aycock
PostPosted: Mon May 25, 2015 4:55 pm 
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Cocobolo
Cocobolo

Joined: Tue Feb 17, 2015 6:03 pm
Posts: 165
First name: Glenn
Last Name: Aycock
City: El Lago
State: Texas
Zip/Postal Code: 77586
Country: United States
Focus: Build
Status: Amateur
After replacing the wing nut with a lock nut and tightening everything up, it works much better.

Still not 100% - there's a bit of flex somewhere that throws the cuts off. I may try a round nose bit.
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Glenn_Aycock
PostPosted: Tue May 26, 2015 12:15 pm 
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Cocobolo
Cocobolo

Joined: Tue Feb 17, 2015 6:03 pm
Posts: 165
First name: Glenn
Last Name: Aycock
City: El Lago
State: Texas
Zip/Postal Code: 77586
Country: United States
Focus: Build
Status: Amateur
Got it dialed in now - with the straight cutter. Round nose bit not recommended.

Turned out to be an engineering problem. The upright was flexing due to my downward pressure as I swung the router. I reinforced it and added a handle close to the side to minimize flexing. It works reasonably well now.

I can't really say it was economical, but I can make blocks in any length and radius up to 22".
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