[Woodcarver] Re: Drafting pyramids

[Victor Hamburger]

Larry,

I was thinking about the actual cutting of the wood for the clock.  I suspect, 
although don't know for sure, that it would be very much like cutting a mitre 
cut for crown molding on a compound mitre saw.  For that, you cut the molding 
upside down with the saw set at the angle of the cut, usually 45 degrees and the 
bevel cut set at 45 degrees.  I would think, without actually chopping up some 
wood, that cutting this would work the same way, inside out at 60 degrees and 
the bevel set ot 60 might get the right angles without all the mental 
gymnastics.   You clearly can do it, I can't!!! LOL!!

If Jean doesn't have access to a larger compound mitre saw, perhaps you can 
verify the cuts to make and she can find a woodworker who has a saw to do this.

Thanks, Vic H

Larry wrote:

> 

> As you have discovered drawing a pyramid in 3d is a little tricky.  To 

> build one that appears to be a 600 triangle when viewed from the side 

> you need 4 sides:

> Base length = 10”

> Side lengths = 11 3/16”

> Angle (base to sides) = 63.40

> Angle (top between sides) = 53.10



> When this triangle is tilted back 300 to meet the other three sides the 

> resulting pyramid will be 10” across the base and 8.66” high at the apex 

> just like a 600 triangle.

> 

> I hope this helps.  If you require mitre angles please let me know and 

> I’ll try to draw them up for you (I’ll need material thickness).