Having a big problem in figuring the angles from the plans. I am trying to make a prototype of the legs. I bought the plans, but the angles don’t match up! I’ve worked several hours trying to get them to fit correctly, but no luck. I’ll attach a photo of plans and see if someone can figure it out. Maybe some has built the piece?
what are the angles of both the leg section and the spinner (rail)? And the angle of the bottom of the leg? It’s driving me crazy! I’m not giving up! I want to build this piece.
Replies
Unless the plans are large enough to print and then trace, it seems like it will be difficult to determine the angle exactly. (Not enough info on the drawing to calculate the angle using trig.)
I'll be interested to see what others say.
John
Agreed. Old draftsman here and I don't see enough info there either without spending some time drawing it up. I am sure I could come up with it, but it is not obvious.
The dimensions are a little blurry so check my numbers as we go. The base width is 12 inches, the height 13 3/4 and the top width is 9 1/4 inches if you add up the 3 dimensions.
Based on that, if you draw a rectangle around it you would see two triangles on the outside with a length of 13 3/4 and a short side of 1 3/8. Basic trigonometry yield an angle of 5,7 degrees from the vertical for the front of the leg and consequently for the top so it makes a straight line with the rail.
I think you're right - had to figure out the triangle backwards. Didn't check the trig but the logic seems right!
I checked it using an old rule of thumb, 17 thousands per inch per degree. So over 14,25 inches X 5,7 degrees X 0,017 in/degree the line will cant 1,380 inches at the top which is close enough to 1 3/8” .
The Apron has a 10 degree angle on the ends. As long as all four legs are the same, the angles at the top don't need to be precise -- they just all need to be identical. I would leave the bottoms of the legs alone until after glueup. Then scribe them all and trim. Cutting to fit is always a better practice than measuring.
Personally I would cut the rail at 5,7 degrees instead of 10, make a triangle 13 3/4 long by 1 3/8 and use it as a template on the tablesaw sled or RAS to cut the top and foot of the legs as well as the rails.
“[Deleted]”
Hey there - all reasonable suggestions so far! From my vantage, I would do this one of two ways:
1 - Make a full size drawing on mat board (or similar) and take the angles off that.
2 - If you know Sketchup, draw it and measure the angles on it. (I would be happy to do that for you if you would like, but the file is too blurry for me to read all the measurements. If you can get get better resolution drawings, I could draw it and get you those angles.)
“[Deleted]”
Pretty wild that one of FW's paid products can be shared here!
I deleted the plans, never thought about that. Well anyway, RAL3Wood helped and went to extraordinary steps to help! What are true helper and caring individual! How is so very much appreciated! Anyway, problem solved, with help from a fine individual.
If I read the drawing you have correctly the angle of the legs are 79.2 and 95.7. I laid it out in CAD and have attached the sketch
Thank You! Wish I had those capabilities
“[Deleted]”
So the 5,7 degrees is spot on . I would either change the 79,2 (10,8 from the vertical) to 80 degrees or set the rail angle to 10,8 degrees so the leg cheeks can be cut on the tablesaw using the inside of the leg as a guide (with a spacer).
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