Could somebody explain to me the difference between these two types of joints? I assume regular is better? Oh oh, in the title I typed M7T instead of M&T, sorry my mistake.
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May you die and go to heaven before the Devil knows you're dead. My Best, Mac -
Basically a loose tenon could be a dowell or a spline, or any fitted insert that would fit two adjoining pieces with a mortice in each of the pieces to receive the tenon. A fixed tenon, like a chair stretcher is machined on the end to be fitted into a mortice to match. It's part of the stock. I hope this answers your question. If not there will be someone with more info here to help you.
"I'M NEVER WRONG - BUT I'M NOT ALWAYS RIGHT" -
Cabman,
Thanks for the explanation, but unfortunately, I am a bit more confused about this now. The description you gave seems to me to fit what Keith shows in his video posting only he describes it as a 'loose tenon'.
In Keith's video, he uses a plunge router to make a mortise, then makes a tenon and rounds the edges to fit into the mortise. Is that what you are describing as a 'fixed tenon'?
Just a bit confused!
RickComment
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I haven't seen the video but what you're describing sounds like a loose M&T. If you have to make mortises on both of the pieces you are joining and are using a third piece as a tenon that would be a loose M&T. If you are making one mortise and one tenon on the pieces you're joining that would be a fixed or regular M&T joint. Hope that helps.Comment
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loose M&T has two holes and you put a piece that fits in both holes when brought toegether, so there are three pieces. Regular M&T has only one hole...and the piece that is connecting is tapered to fit into that hole so only two pieces total.
Biscuits could be considered loose M&T I guess because there are two slots (holes) and you put a piece of wood to connect the them.YOU DONT HAVE TO TRAIN TO BE MISERABLE. YOU HAVE TO TRAIN TO ENDURE MISERY.Comment
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Actually our answers are pretty much the same. In Keiths video, the loose tenon he made is shown inserted into one mortice, the other end hasn't been inserted into the other piece during the video (for the purpose of explanation). He only machined one of the two mortices for the purpose of the video.
"I'M NEVER WRONG - BUT I'M NOT ALWAYS RIGHT"Comment
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Perhaps this will help?
Top drawing is a conventional mortice and tenon joint, with the tenon being part of the right-hand piece, the mortice cut into the left-hand piece.
Lower drawing shows a "loose" tenon (the central block), which fits into mortices cut into both the left-hand and the right-hand pieces.
Loose tenons can be square, rectangular, rounded over, whatever - as long as they are an accurate fit in the mortices. "Loose" does not mean that they fit loosely, but that the tenon part is loose - i.e., separate from the other elements. HTH
Ray.Did I offend you? Click here.Comment
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Great I got it. I sure wouldn't have ever thought though that those two completely ( at least to me ) joints would have names so alike. I think they should be named differently. Oh well. Anyway thanks all for the help and while I finally got it the pictures confirmed it. Thanks Ray.May you die and go to heaven before the Devil knows you're dead. My Best, MacComment
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Cabman & Ray,
Thanks for the explanation and the the pics. Cabman's explanation was dead-on - like the others! But, I have to admit, that until I actually saw Ray's post with the pictures, I was still tossing this around in my head trying to figure out the difference.Comment
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Rather than "fixed" or "conventional," think of the non-loose type as an integral tenon. Of the various names used, I have always thought that is the most descriptive.LarryComment
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That is some rig Ken. Thanks for the picture. I'll have to take a closer look at that jig if I decide to try them. Yeah LarryG integral tenon would be more descriptive - and let's kill that loose tenon name.
how misleading.
Last edited by lcm1947; 10-31-2006, 05:38 PM.May you die and go to heaven before the Devil knows you're dead. My Best, MacComment
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Keith Z. Leonard
Go Steelers!Comment
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I would not consider them that different. You still have a mortise - elongated cavity in the workpiece. and you have a tenon - a fairly thick and wide piece that goes into it, presenting a large surface of non-end grain for gluing. As opposed to dowels which go into round holes and biscuits or splines which are thin enough to fit into basically a blade kerf.Comment
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