Well, I can’t seem to find the thread I was keeping with what I was learning in Inkscape while I stockpile Ideas for the impending golden Email currently set for Feb 8! The Spiral table noted in the other thread evolved a bit to this, that is 4 layers though only two are needed depending on what it goes to the top is the previous table and the rest are dynamic offsets. I have discovered that Inkscape can be very messy as holes are closed leaving geometry that is less than a pixel, For the person who wanted them as a hole in leather they might even be interesting as unless they are cleaned I can easily see the laser shooting holes like buckshot all over your design. I hope there is a global way to delete them but I had to resort to just finding each one and deleting it without disturbing the stuff I did want. Anyway, this is the final of all four layers. the tabs are to fit in a groove in the frame of the design.
Very interesting design. 
Well for all those of you complaining that the Golden Email date had passed, I can say that with me they even jumped the gun sort of. The date was as early as mid-January but bounced back and forth (mostly back) so it felt like I was chasing a moving target. Well, the target date was Feb 8 but I found the golden Email in my box tonight! a week early! So I signed all the rules, promised I would not be making porn or illegal weapons, and tossed my anxiety into super high gear.
I will be going to the doctor tomorrow to charge my legs for non-support so I will need to find help to even get the boxes in the door, and many other vague expectations will now be biting realities.
Congrats! 
Very cool design!
Really nice and congrats! I got mine today also.