Bandsaw template following.

[John Brown]

I may be making around 10 identical copies out of 9mm phenolic faced ply. My question is, should I make my bandsaw jig thing such that the master template is underneath the blank, or on top? What are the pros and cons either way?

 

[Ed Weber]

This may help you decide.
https://www.finewoodworking.com/201...you-bandsaw-and-rout-curves-with-the-same-jig

 

[John Brown]

Thanks. I remembered I had a book on bandsaws by Mark Duginske, so I'm sorted! Blank underneath, template on top, where you can see it.

 

[Yorkieguy]

This may help you decide.
https://www.finewoodworking.com/201...you-bandsaw-and-rout-curves-with-the-same-jig

What a very nifty idea using a guide pic and having the jig on the bottom, which is a bit counter-intuitive as the first inclination is to have the jig on top where it can be seen.

 

[johnnyb]

I would not bother with a bandsaw template. bandsaw just off the line rote ( rack of the eye) then template rout. bandsaw templating never worked for me. especially with even mild curves.

 

[John Brown]

I would not bother with a bandsaw template. bandsaw just off the line rote ( rack of the eye) then template rout. bandsaw templating never worked for me. especially with even mild curves.

Interesting. Could you be more specific as to in what way it didn't work?

 

[johnnyb]

try it. your asking a bandsaw blade to turn on a sixpence with no sympathetic pre movements. I couldn't even get a circle jig that came with a startrite to not cut a spiral!

 

[John Brown]

try it. your asking a bandsaw blade to turn on a sixpence with no sympathetic pre movements. I couldn't even get a circle jig that came with a startrite to not cut a spiral!

Thanks. I will try it. The circle jig on my little Inca works pretty well, but I'm sure you're right.

 

[Ttrees]

Two ways to skin the cat in this video

I wonder if results might be improved with one of these back tooth blades?

 

[johnnyb]

I'm sure it must work as I've read a multitude of articles about it. I made over 50 adirondacks using patterns basically hundreds of shaped components. I bandsawed close to the line then sanded to the line.they didn't have to be a perfect shape. just close but they did have to look good and be done quickly. template routing is great for perfect but is a bit scary for a lot of components on a router table( I prefer to use handheld but the dust can be terrible)

 

[HOJ]

I've been using a home made guide to cut close-ish to a template, these are fairly gentle curves, but I do then finish on my spindle moulder or router, as the blade i use is coarse: