How does the math work?

Easel
1

I’m new. Going through the headaches of learning. What fun.

So my first serious piece of plexiglass and I read up on some of the techniques and chip rate math. And I know that having a single speed trim router is a handicap (I’m about to convert as soon as I can get the new mount cut!)

I’m using a 2.76mm single straight flute bit, running at ~35k rpm.
I kept getting swarf so I started playing with the numbers… So far best results are 1500 mm/min, 228.6 mm/min plunge, and .2mm /pass. Swarf isn’t appearing until I get about 5-6mm in, beautiful results until then. I’m assuming it’s runout causing friction.

Anyone else surprised about the feed rate? I never expected such a blend of art and science when I bought my x-carve.

3

Ok then. I was heading in the right direction… up the feed rate.

Thanks!

4

You good sir, are now my hero! That did the trick… nice clean edges, no buildup on the bit. Awesome!! Thanks!!

…now where did you come up with that number?

5

Rpm X # of flutes X chip load. =IPM

7

that’s helpful