Monday, October 25, 2010

Saw Horses

So Here I am, in wait for lumber to come to my door for the stand of the Maple Showcase project. I was thinking of making some saw horses after finishing the showcase but time has presented itself now.
On the table are all the rough dimensioned parts for four horses. The little "pony" there was made at school as an exercise in tenons, it also happens to be a 1/2 scale of the low horses out at IP. I'm making the taller horses though.

Here is some free-hand mortising in a foot piece. The ones at school are wedged tenons but I'm making stub tenons here.

Live tenons. There are 16 tenons in a set of four of these horses, I figure I would use them as another exercise in live tenons.
The shoulders cut and waste removed with table and bands saw. I use a chisel to cut out the corners of the tenon then round it with files to fit the rounded mortises... morti?

Here's a dry-fit tenon. Yes there is space horizontally because these are to be wedged tenons. It has been a long time since I have wanted to put through joinery in a piece, haven't done it since MCTC (before IP). These utilitarian aids probably need it though. The "leg" pieces are relatively thin and with the use that these guys are going to see (hopefully) they could benefit from a joint being mechanically strong too.

LOTS of edges to treat! But I don't want to be grabbing at sharp things when working so treatment they received!
The horses are all assembled except for the top cross piece. There is a lap joint in the top of the leg about 3/4" deep and a lap in the cross piece about 1/4" deep. The top piece is not to be glued into place in case it is ever needed to be replaced. The 1/4" dowel is not compressed any further than what came from the factory and is a tight fit. One will need to apply a fair amount of force to get the cross piece off but not enough that anything is in danger of breaking.

Tah-dah! A set of saw horses ready to be used! They are 30" tall and the top cross member is 18" wide.
I would also like a set in the 20-22" tall range, another time...


Nick Brygidyr said...

you flair your mortises for throughs? thought that was a no-no.

anywho the lumbercore idea for my cabinet is way too labor intense for me. i think im just gonna go ahead and bent 16 panels in the vacuum press and join them together with splines...

Nicholas Nelson said...

Hmmm a no-no? Not quite sure what you mean sir. Whenever you see wedges in through joints there should be flaring in the mortise. This is what makes it mechanically strong, like a dovetail.

Heh I had a feeling you'd choose lams. I probably would too.