I'm in a project where I need to get very accurately cut slots in an airframe for mounting the fins. In the past, I've taken the lazy way out and had Kent at Giant Leap or Curtis at PF do it for me. Does anyone in the club have a router-table jig or similar setup that they've used to make dead-on balls-accurate* fin slots? This is for a 4" convolute-wound airframe.
* A technical engineering term, like the CH/RCH/LRCH** measurement system - typically used to indicate less than .001" deviation.
** an even more technical engineering term - must be over 18 to hear it.
I need to do this too.
I have a router and table, but no jig for "dead-on balls-accurate" cuts. 😉
I would be interested in the answer too.
OK WARREN
This is what I came up with. Made with MDF board.
Its one of those equal lateral thingys I lernt about in high school a year or two ago. 😉
It might not be + or - .001
But maybe it will be + or - .002
I cut very carefully with the miter saw, and use a disk sander to touch it up.
As you can see, I put a 90 degree cut on the corners to ride on the fence.
Every thing seams to measure out right..... all three ways. 😀
I will use a pair of them.
I plan on using small counter sunk screws to keep the tube from turning. (even though its a pretty snug fit)
The little holes left by the screws, will be filled later. No biggy.
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