Interesting tenon technique

[John Rumm]

This one seems to be working up some argument:

[dennis]

I just use my SCMS to do them, not the quickest but its reliable.

[Dom Ostrowski]

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[Cash]

As one who has cut tenons on a bench saw in the past, it seems a far better (and safer) method than the way I used to do it - although still a 'bit naughty' H&S wise (particularly for those unused to or untrained on the dangers of putting side pressure on the blade as the result of trying to take too much off at once - and the importance of keeping ones 'pinkies' well out of the way).

As a retired old pro (as they say) would I have used that method in the shop? The answer would be yes with the number of tenons I had to cut on some jobs - especially on lumps of 6"X2" timber.

Cash

[John Rumm]

Dare we ask how you used to do it?

Out of curiosity I just gave it a try on a couple of "furniture sized" tenons. I found it quite easy and natural to control. There was no need to get fingers anywhere near the blade or exert any push on the work.

I used a mitre fence with an extension on it that got right up and slightly past the blade so that the fence was always directly behind the point of contact with the blade. With fingers hung over the top of that "chad" style, the work was easy to control. I Found the natural technique for me was to actually cut in both directions. So start with the blade in the shoulder cut, and slide the stock away from the main fence, then advance and slide back, advance and slide out etc.

Results look nice. With a ruler on the surface you can't see any undulation. Using a DTI on a mag base, I could read a variation of about

0.04mm, which was probably flatter than I could cut by hand.

[Cash]

Whip off the guard and the riving knife, set the blade to the required depth (the lenght of the tenon), set the fence as needed and then run the piece of timber vertically over the blade of the saw, the shoulders of the tenon were then cut using a crosscut saw. As the roof of the shop was quite high, we could cut the tenons onto the ends of timber up to about 8ft or so long.

All interesting stuff, with only lip-service being paid to the rather basic H&S rules that were about then - hell, we even used to use a bench saw and band saw to cut up 10' x 5' a 3/4" cement/asbestos sheets without any protective gear at all supplied, and then clean off the machines with compressed air (makes me shudder now just thinking about it).

Cash

[Frank Erskine]

I read that as:- "chav style".

[Frank Erskine]

... and allows a bit of space for the glue :-)

[jgharston]

JGH

[John Rumm]

Well aside from having jigs to clamp it while upright these days, that seems fairly normal ;-)

Still puts some of the current over reactions to handling a bit of asbestos cement sheet into perspective!

[TMC]

This is how I did them years ago when I did not have many power tools other than the table saw

Regards

Tony