CNC Foam Insert Experiment

I wanted to try to create custom cut foam inserts for shipping products so I picked up some closed cell and EVA foams for some tests. The closed cell foam (black) is a seat cushion and the EVA foam (gray) is an exercise mat. I experimented with a compression bit, downward spiral, up spiral bit and engraving bit. Probably not a surprise that the compression and downward spiral bits performed the best. In the EVA foam the cut quality was amazing and the engraving samples also came out super crisp. In the closed cell foam, hard to tell in the video, the climb cut was actually really nice but the pockets were pretty bad. I think the key is going to be smaller step overs and slower feeds. Links to the tools I used. Downspiral Carbide Straight Bit 1/4" D - https://amzn.to/2GivXyO Amana Tool 46350-K Compression Spiral 1/4" D - https://amzn.to/2IsHHC9 SGS 30446 3 2 Flute Square End Mill 1/4" D - https://amzn.to/2Uq3cVY Amana Tool RCK-361 Solid Carbide Insert 30 Deg x 0.010 - https://amzn.to/2UoA29t Amana Tool RC-1075 CNC In-Groove Insert Engraving Tool Body 1/4 Inch SHK x 2-1/2 Inch Long - https://amzn.to/2Dh2mF8 DEWALT DWP611 1.25 HP Max Torque Variable Speed Compact Router with Dual LEDs - https://amzn.to/2Dkoyyh