Tagged: Pair square mortise
12 April 2013 at 12:27 pm #10827
Hello! I’m training on doing mortises using chisel and mallet. How to pair the bottom of the mortise by hand? I have no room to use a router plane… And, last question , how to square mortise face to the bottom? i want to use only hand tools..12 April 2013 at 12:38 pm #10828
Hey Carlo,12 April 2013 at 1:58 pm #10830FlorianParticipant
you can pair the bottom with the chisel bevel-down.
I enjoy working wood in Germany.12 April 2013 at 3:59 pm #10837
Hi Ken and Florian!
I use standard chisel to chop mortise, like Paul does in the video linked above. I have to work on really small mortises and they must be stright and squared because i have to glue in a patch of good oak. Mortise sizes are : 1,5 cm length for 1 cm width or 1 cm depth in the wood. Too short, to use a plane and a router.
Probably a liuthery plane… Or i have to become skilled on using the chisel..any tricks?12 April 2013 at 4:29 pm #10839
Carlo, you could use a forstner bit to drill out the bulk, this would give you a nice flat bottom, Then finnish with a chisel. Or you could use a chisel, and a small router plane.
You must be logged in to access attached files.12 April 2013 at 4:30 pm #10841robinhcParticipant
Or i have to become skilled on using the chisel..any tricks?
Carlo @bow … Use a knife wall to establish the walls of the mortise. Chop the mortise half way thru from the top, and then flip the piece over and chop the other half from the bottom. Every so often, check to see that your chesil is straight up and down, so that the top and bottom half of the mortise meet in the middle. You can also make a jig to keep the chisel straight.
If the mortise is not all the way thru, the bottom of the mortus does not have to perfectly flat. The strength of the joint comes from the sides of the tenon in contact with the sides of the mortise. A little space between the end of the tenon and the bottom of the mortise is not a bad thing.
Watch Pauls videos on chopping a mortus.
Robin ... Richmond, Virginia, USA12 April 2013 at 4:39 pm #10843
HaHa Robin, did you even read Carlo’s post. He wants to glue in a patch of good oak, not chop a through mortice buddy. 😉12 April 2013 at 9:52 pm #10862jgust747Participant
Could you use the chisel and some smaller chisels in a poor mans router setup to square the mortise?
Dallas, Texas13 April 2013 at 3:36 am #10883DaveParticipant
Umm, I think a swan neck chisel is supposed to help out smoothing the bottom of a mortise. like this http://www.leevalley.com/en/Wood/page.aspx?p=30266&cat=1,41504,41533&ap=1
I’ve never really worried about the bottom of a mortise so long as its deep enough to let the tenon seat properly.
-Canada13 April 2013 at 10:48 am #1089813 April 2013 at 10:50 am #1089913 April 2013 at 10:51 am #10900
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