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Forum topic by ajosephg posted 10-29-2008 06:13 AM 873 views 0 times favorited 5 replies Add to Favorites Watch
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ajosephg

1860 posts in 2313 days


10-29-2008 06:13 AM

Topic tags/keywords: jig milling router template

I want to build a jig and template to profile many game board pieces. Plan A was to make a base out of 1/2 inch MDF which would be the surface for the template to sit on. The workpiece would then sit on top of the template. Lever clamps would hold the sandwich together. Was then going to use a pattern routing bit with a top bearing (bearing next to the shaft). This is where I am stalled. The only bits I can buy locally only have a 1 inch long shaft. Since the bearing must be above the router table 1/2 inch (to clear the jig base) I would not be able to seat the bit into the router chuck to its full depth. This sounds like a way to have the bit come out of the router and probably make a new orifice in my body.

What am I missing? I’m sure I’ve heard about similar set ups. Can router bits with longer shafts be had? I could go with a flush trim bit with a bottom bearing, but then I can’t see my work piece.

-- Joe


5 replies so far

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John Ormsby

1281 posts in 2489 days


#1 posted 10-29-2008 07:05 AM

Hi Joe, You might try the MLCS #9464 1/2” router collet extension. It is designed for what you are trying to accomplish.

http://www.mlcswoodworking.com/shopsite_sc/store/html/smarthtml/pages/router_collet.html

Woodcraft sells the Eliminator RC quick change router chuck. It might be long enough to handle a 1” long router bit shaft in a router table set-up.

-- Oldworld, Fair Oaks, Ca

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Grumpy

19714 posts in 2603 days


#2 posted 10-29-2008 09:01 AM

Good one John. We live & learn.

-- Grumpy - "Always look on the bright side of life"- Monty Python

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ajosephg

1860 posts in 2313 days


#3 posted 10-29-2008 12:14 PM

Looks like that would do it – except my router has a 1/4” chuck.

-- Joe

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ajosephg

1860 posts in 2313 days


#4 posted 10-29-2008 12:45 PM

Hi Dave – Too bad that I have a Craftsman.

Been wanting a new router anyway. Maybe now is the time to take the “plunge” and get one with a half inch chuck

-- Joe

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John Ormsby

1281 posts in 2489 days


#5 posted 10-29-2008 04:09 PM

I would recommend one NEVER use 1/4” shank router bits for any pattern work. They are very fragile and cannot stand the sideward pressure put upon them. You do not want a router bit, spinning over 10,00 RPM, flying around the shop. 1/2” shank bits are the way to go.

-- Oldworld, Fair Oaks, Ca

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