Making kerfs on side windows on Mack truck cab

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Blog entry by studeag posted 01-01-2018 04:08 PM 1376 reads 0 times favorited 2 comments Add to Favorites Watch

To make the kerfs, I’ve made a jig to be use on a router with a 5/16’’ guide bushing with a 1/16’’ straith bit. For the dimension of the jig I mesure the dimensions of the kerfs from the window openning and add 1/8’’ for the guide bushing, at the bottom make it larger and strait from the sides so the bushing will ride on it, Then I drill the holes to attach it to the piece at the same place as on the other jig to cut the window. When the piece and the jig are attached together, I use the router to make the kerfs at the depth specified. Note that the jig is large enough to hold the router flat. To do the other side I attache the other piece to the other side of the jig, and rout the kerf on the other side.



This is what the jig looks like over the piece
After the kerfs are done, I cut both sides to size and angle as indicated on the plan.

2 comments so far

View htl's profile


4906 posts in 1789 days

#1 posted 01-02-2018 04:05 AM

Nice jig, that will get er done.

-- An Index Of My Model making Blogs

View crowie's profile


3425 posts in 2581 days

#2 posted 01-02-2018 11:23 AM

Models at your standard are so much more work, patience and skilled than I am as yet…thank you!!

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

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