Lectern
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- This topic has 14 replies, 5 voices, and was last updated 8 years, 1 month ago by Misha.
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I am in the middle of a new project. It is a church lectern. There are a lot of pieces in it, and I am not quite sure how to make all the joints gapless. My decision is to make the tenons with shoulders on all four sides and make the mortises longer ( about 1-2 millimetres) than the tenons so that I could slide the pieces a bit.
[attachment file=”20160223_220208.jpg”]
How it looks now.[attachment file=”IMG.jpg”]
What it should be.[attachment file=”20160219_223342.jpg”]
First joint.[attachment file=”20160222_185930.jpg”]
A bit of help.Attachments:
You must be logged in to view attached files.I am going to put another row of rails that will be an apron and fix the top with turn buttons to allow expansion and contraction.
By now I have placed the vertical pieces between the two lower rails.Attachments:
You must be logged in to view attached files.Very nice design and immaculate joinery!!
I especially like the crosses in the upper part and the three part divisions in the lower part (very symbolistic!) where I find that the uneven division is a nice subtlety.
After seeing your progresses I don’t doubt that it will turn out gapless!
I am quite sure that you know the key would be to match and mark all the pieces and the positions of mortises together as I have learned from Mr. Paul Sellers (well I know the theories and try accordingly. But it is still a big challenge for me and I am speechless at the stunning accuracy Mr. Paul Sellers achieves every time in his videos).Accounting my personal inaccuracies I would allow me a little tolerance at the top tenon shoulders of the small vertical rails as small gaps here won’t be seen easily when you stand infront of it.
P.S. I am only a little bit unsure about the size of the top as shown in your sketch. I wonder if I would prefer it a little bit bigger.
I am eager to see the finished lectern!
I wasn’t understanding the layout problem (spacers and so forth) until I saw your final photo (20160301_121833.jpg). Is the problem that you want to make sure that all of the mortises are in the same plane, but your reference surfaces aren’t all the same? What if you laid out the mortise on the member that is stepped in first (the piece under the bar clamp in the photo). Then, before you change your mortise gauge setting, use it to make a small nick on the end of that piece. Cut and assemble. Now, take a mortise gauge and set it to pick up those nicks, but referenced from new reference face on the other member. This would carry your layout “around the corner” while keeping it lined up. I think this would work, but it might also drive you insane and is contrary to wanting to lay things out all at once. Maybe the answer is to just “do the math” and work out what the settings should be, put them on a story stick, and go from there.
Thanks for your extended comment. I thought a lot and finally solved the problem by using a straight piece of wood as a temporary reference surface. You can see this bar in pic. 20160301_120933.jpg and 20160301_121428.jpg
As you see I put it first along the stile and then across the stiles and above the rail. And as this reference surface stayed the same I didn’t have to change the mortise gauge setting at all. It turned out very simple and beautiful.
Thanks again and excuse my English. -
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