
difference() {
frame_back();
translate([-50,0,3.5]) {
panelize(backwidth, backheight, backdepth, panelwidth, panelheight, keysperside, gap, offsetx, offsety, 3,1);
}
}

The result looks something like this (on an 8.5"x11" sheet of
paper). The panels are 60mmx60mm square, not counting the key
protrusions.

Impressively enough, the clock ticks with pressure just from my fingernail on the hour drum without having the front of the axles fixed in space via the front face. So far all pieces had minor filing to ensure a good fit, but no glue is involved and its surprisingly rigid (and lightweight). I figure painting the seams from the back with acetone would make the assembly permanent.
Video: http://www.prototribe.net/vidplay/prototypeclock_demo2.html
The thought crossed my
mind that the panelization lib would in theory permit the
relatively easy creation of all the panels required to assemble a
full-size grandfather clock case! At the very least the concerns
for build platform limitations are greatly lessened.
When I get a chance i'll
upload the interloc panel lib.
Regards,
Mark