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How I am cutting scarf joints


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I've been toying around with various means of cutting scarfs on stringers for my kayak project and here is what I came up with.   I realize that space constraints may render this impossible for some workshops.   I have cut several now and find that this seems a relatively easy and safe way to get good cuts.   When using a radial saw the most important safety aspect is to keep hands out of harms way and to have your stock backed up against the fence.  Therefore the tip of the stringer must be brought into contact with fence before initiating a cut.  The clamps hold the stock firmly and the cuts are consistant.  A further improvement would be to redesign the jig to allow for different angles.  Hope I am not treading on someone elses idea as I imagine this has been done before.

 

 

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Sweet! I think that is good way to do it.

 

My only problem with it, is that is doesn't work for me or I would do it just like that. I often cut knots out in the middle of a stringer with a scarf cut and glue it back together. My RAS sit against a wall like your's so I can't get to the middle of a long stringer. After my accident cutting scarfs I looked long and hard at the RAS and just couldn't do it without moving it. I have an old big Dewalt with outfeeds on either side so moving it wasn't an option.

 

Search for scarf and you find a thread on my table saw sled I now use.

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  • 3 weeks later...

I made up another scarf jig for the radial saw  This one lays flat on the table and has a groove cut to a depth down to the top of the fence.  I did this so the stock could pass over the top of the fence thereby allowing the cut to be made in the middle of the stock.  The angle is set so that the stock will not interfer with the column of the saw.   I use this to rough cut the stock and then finish up cutting a parallel trim cut with the jig shown in the previous posting.  The reality is that with a little bit of care this may be unnecessary.   The guard on the radial saw has been tilted back for clarity when taking the photo.  Of course you would need clearance behind the saw to cut in the middle of a long stringer.  

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