as requested on support…
I want the Letter Lines to be Approx 1mm Wide at the Surface.
…501 or 502…
How Deep should I plunge with the most appropriate Tool?
While this can be done using trigonometry, one also has to calculate the chord, as well as the tangent/connection of a line to a circle because the #502 and #502 have a tapered ball end.
It is easiest to instead just draw up both tools in profile…
Start by checking the dimension of the taper and drawing the corner radius:
Draw a vertical straight line:
and drag it into register with the circle:
Select both
and rotate by the taper angle:
Duplicate:
and Mirror Horizontal:
and drag into registration with the original:
Delete a redundant circle
Then draw a line to define where the circle should be trimmed off:
Done
Then use Trim Vectors
to remove what is not wanted:
OK
Delete the line:
Select everything and Join Vectors:
Draw a rectangle centered on the tip:
and set its width:
Then select everything and Trim Vectors again:
until one arrives at:
OK
JOK
Join Vectors
Draw another 1mm wide rectangle centered at the tip of the drawing:
Select both:
and use Boolean Intersection:
OK
keeping the original vectors:
Use Node Editing:
To remove what is not wanted:
d
Done
Checking the dimensions, we see that to arrive at a 1mm wide width with a 40 degree #502 it would be necessary to cut to a depth of 1.12mm if cutting a single line font, for which see:
The most expedient thing to do is to use as close to a monoline font as one can source and to then inset as shown above.
Resources for doing the math are listed in:
