Thread: Help Please - Box Joint Problems

Not sure what tools you are using or how you have made your jig.

Here's a video using a table saw

https://www.youtube.com/watch?v=nYlA...=MakeSomething

Thanks Camelot i am using a router


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Originally Posted by bbarrett

Thanks Camelot i am using a router


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OK this is an easy to make router jig, not sure if it differs from your jig, it's better for me to give videos than try and put things into words

https://www.youtube.com/watch?v=G01h...l=WOODmagazine

The wider you go the more accurate you need to be both with the jig and how you use it. I was using a friend's jig a while ago and found that we needed to clamp the timber to the jig before doing each cut just to ensure there was no possible movement of the timber as the cuts were being made. We also needed to make the locating peg a neater fit in the notch made by the cutter so the timber was indexed along exactly the right amount for each cut.
Here is a very good explanation of making a jig and how precise you need to be.

Many Thanks Treecycle, makes 100% sense what you are saying and i am going down that route this morning, obviously my jig is not 100% where i needed it to be given the wider pieces i am trying to do , appreciate the article Brenton

Thanks for the help. Working now.


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I use a home made router jig clamping is the key, also I only do 1 cut with 1 board at a time there is a lot of vibration using a router. I also route from both ends to where the lid joint needs cutting off this gives an even box joint all the way down the wood. A small fine metal file helps if there is any fine adjustment needed. Cheers