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Making kerfs on Mack truck towing

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Blog entry by studeag posted 01-01-2018 04:26 PM 299 reads 0 times favorited 4 comments Add to Favorites Watch

Box kerfs are an other story, a lot of precision has to be use, cause the jig is a 3 reversibles parts system on a base and you have to have the holes drill on the 3 parts and base at the same place on each parts.

You need to make multiple guide, cause the groove for the router guide will cross with other grooves.

The base and jig parts are made from floating floor parts, very stable and easy to cut. The base has the place to place the uncut side panels and hold it in place. The lenth and height is the same but the upper part is strait. I use the a 1/2’’ guide bushing and the same strait 1/16’’ bit. The jig #1 cuts the outside kerf and the kerf for the front panel, you do the other side by flipping the #1 guide.

Right side kerf

Left side kerf

The #2 jig is use to front door, the back of the front door strait kerf and the back door

The #3 jig is use to middle door, the midle strait kerf

To make sure the 3 jigs are always at the same place, I have 1/4’’ bolt guide to make sure they are at the same spot.

When I cut, I put a screw to make sure it wont move.



4 comments so far

View htl's profile

htl

3467 posts in 1030 days


#1 posted 01-02-2018 04:09 AM

Nicely done and thanks for the how to!

-- Learn More About Making Wooden Models. An Index Of My Model making Blogs. http://lumberjocks.com/htl/blog/116729

View crowie's profile

crowie

2168 posts in 1821 days


#2 posted 01-02-2018 11:24 AM

It’ll be a while before I get enough skill & confidence to tackle something like this…nice done sir!!

-- Lifes good, Enjoy each new day...... Cheers from "On Top DownUnder" Crowie

View Redoak49's profile

Redoak49

3003 posts in 1859 days


#3 posted 01-02-2018 01:51 PM

Very nice jig and well thought out…thanks.

View htl's profile

htl

3467 posts in 1030 days


#4 posted 01-02-2018 02:50 PM

Love to see how it’s done so I can let it peculate around in my head and use these tools down the road.

-- Learn More About Making Wooden Models. An Index Of My Model making Blogs. http://lumberjocks.com/htl/blog/116729

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