Category: CNC

Computer Numeric Control

In Loving Memory of…

A friend requested that I make a wall plaque in memory of his mother who passed away recently. He wanted a wooden spoon attached to the carving, which he supplied. Here is the design I came up with.

Finished job

This piece was too big to carve in one run on my 3018 PROVer, so I made two separate carves. The top letters which say “In Loving Memory of Mom” were carved with a 90 degree V-bit. The workpiece was then re-positioned in the CNC so I could carve the lower part with the heart, her name (which I have blurred in the photo) and the years. I switched to a 60 degree V-bit for the lower part as these letters were slightly smaller than the ones at top.

The piece was made of laminated maple and I put an edge on it with a roundover bit in my router before carving the letters. I also routered a groove on the back with my keyhole bit so it could be hung up.

I finished it with my beeswax / mineral oil paste. I applied the same finish to the wooden spoon and attached it with a couple of countersunk 1″ wood screws from the back.

This was a fun and challenging project. I hope my friend is happy with it.

Another Cutting Board

Had a request for another cutting board from my real estate agent daughter. This is the second one for this client.

This was different type of cutting board than the first one, still made from solid maple laminate.

Because of the style of board, I was able to cut the letters a little bit bigger and thus a bit deeper with the 90 Degree and 60 Degree V-bits.

The logo symbol at left was a simple pocket cut with a 1.5 mm single flute downcut bit.

After giving the piece a light sanding, some clear epoxy was applied and allowed to cure for 72 hours. The epoxy fills the carved out areas and makes the surface nice and smooth.

Then it was given a good sanding to remove excess epoxy followed by a coat of my beeswax/mineral oil mixture. That finish really brings out the beauty of the maple – the photos don’t do it justice.

As before, this was designed in Carbide Create and carved on my Genmitsu 3018 PROVer CNC machine using CNCjs.

A sign for the Farmhouse

Wendy asked me long ago if I could make a sign for her family farmhouse. I bought some plastic sign material almost a year ago from Trotec at engraving-supplies.ca but never got around to making the sign. Well, I corrected that today.

The sign as it came off the CNC machine

I had made a small name sign on a piece of scrap 2-colour plastic I had laying around so I was pretty sure that my feeds and speeds were good. When milling plastic, the thing to avoid is going too slow. If you do, the plastic will melt on the bit.

So I used a 1/8 inch single flute upcut bit with a feed rate of 500 mm/min which is about double my normal feed speed for wood. I also took a deeper per pass than normal because of the softer plastic material. I cut the design to a depth of 0.6 mm in a single pass into the 1/8 inch (3.175 mm) material. These settings seemed to work well as I made lots of plastic chips and no melting.

The sign presented a challenge because at approx. 300 x 300 mm, it was twice as large as the work are on my 3018 PROVer (280 x 165 mm). The design had to be split into two separate carves, each of which being within the limits of my machine. After carving the top half of the sign, I repositioned it on the bed and cut the bottom half. The piece was held down with double-sided tape as it was too big for me to clamp it. Man, that tape really holds! I was worried I might break it prying it off the tape, but I was careful and successful.

The finished sign.

I have a happy customer with this one!

TV Stand Project

This is another “retro-post” of a previous project. Last year Wendy wanted a new TV stand for Hanna’s Irish Vacation Farmhouse. We decided to make it from some nice wormy maple that I was able to source locally.

Finished TV Stand in place at the farmhouse

After careful measuring to fit both the available space and the farmhouse’s TV, I came up with a design and started cutting the pieces and began the assembly.

Table during assembly

All the joinery was done with pocket joints. It’s a good effective way and provides a strong joint.

Assembly

I decided to personalize this table by carving “Hanna Farm” into one of the front rails. Before assembly, I put the piece into my Genmitsu 3018 PROVer CNC machine and made the carving with a 90 Degree V-bit.

The top

The top was a beautiful piece of laminated wormy maple and was the single most costly item in the whole table. I mixed up some clear epoxy and filled in the knot holes on the top. It was then given a number of coats of polyurethane. The rest of the pieces got the same polyurethane finish before final assembly.

All in all, this was a very worthwhile project. The wife was happy and that’s the most important thing.

Cairnwood Cutting Board

My daughter commissioned another cutting board for one of her real estate clients. This one was made on a different style of maple board.

Cairnwood

I grabbed the logo from the client’s website and imported the SVG file into Carbide Create where I sized it to fit the available space and generated some toolpaths.

The board was carved on my Genmitsu 3018 PROVer CNC machine. I mixed up some clear foodsafe epoxy and filled the cut out areas. After the epoxy cured for 72 hours I gave it a sanding, and followed up with a coat of beeswax & mineral oil for a nice finish coat.

Reverse

On the reverse I carved my daughter’s information. No epoxy on this side, just the beeswax and mineral oil finish.

Sherry says her client was really pleased with the cutting board.

Make Canada Free Again

Carved today from two pieces of leftover tongue & groove oak flooring that I glued together. Pocket carve with a 1/8 inch 1-flute downcut bit. A 1.5 mm downcut bit was used to pocket cut the words outside of the maple leaf and to contour cut the outside of the word “Canada”.

All cuts to 1 mm depth on my Genmitsu 3018 PROVer, designed in Carbide Create. This was a prototype and if I make any more, I will probably a little deeper as I was just barely getting through the top layer of wood.