After seeing Steven’s notebook posting ( Wooden notebook ), i figured I’d post the one I did this weekend using wood and acrylic. This is a guest sign in book for my mom’s wedding this weekend.
It was a simple project, just carved out the design with a 1mm down cut bit, mixed up some casting acrylic and various mica powders. Made sure to overflow it a bit to get a good seal on the top. Let it all cure overnight, then threw it back on the CNC.
Used a 3/4" straight cut bit and made a box in Easel to “fill in” .01 from the surface. Took about 3 minutes to do it and it worked out perfectly.
Ran both pieces (front and back cover) through the thickness planer till they were thin, but still sturdy.
I did some sanding through 400 grit to bring out the colors on the acrylic, then 4 coats of wipe on poly. Then got some leather straps and made the binding.
Very nice. Using the x-carve to just mill away the excess acrylic overflow was a genius idea! I would have been sitting there for an hour with my random orbital sander messing with that.
That was my thought exactly. It does make a mess, but man does it save on time. Not to mention the masted sand paper.
This is excellent work. I love posting of projects like this. It shows the creativity that we all can learn from and improve our projects as well. Thank you
Same here, we’re all still learning and this is the best community to do that in.
Great work. Love the piece.
Thanks for sharing
Wow after doing a few epoxy overlayed cutting boards I might have to try that idea of milling the excess off.
it’s worth it. find a large bit, like i said i used a 3/4", and mess with the speed and feed rates. i kept the Dewalt 611 in between the 3 and 4 on the dial, and the feed rate was pretty high at 65 in/min. it was good though, no shards, melting or lines left behind on the acrylic. saved me so much time and i can’t wait to do it again with a few other ideas i have.
I’m still learning settings and everything. I’ll try with leaving the dial on 1. But I couldn’t carve with that high of a feed rate with a 1mm bit. Tried it a little faster than what i had and it broke the bit, twice. I guess top milling is easier to run high feed rates with? I was nervous about the acrylic shipping out so i kept it at 65
That looks great! How do you get rid of the air bubbles? Every time I use epoxy I end up with tons of small air bubbles.
Add just a touch of heat with a lighter and bubbles are gone
i used the suggested .028
Like Philip said, I use a small butane torch. quickly graze just above the surface of the epoxy/acrylic and they pop. for the larger areas, i use the random orbital sander without a pad on it and let the sander shake the bubbles to the surface. if i plan on milling it off, i don’t bother with the torch when i see bubbles.