First Stage: KReduCNC1 Proof of Concept
Using the components on hand along with some scrap
8020 aluminum, I built the first KReduCNC1 shown in
As a test, I completed my “Holiday Shape” project
using this prototype. It was a great success.
The Holiday Shape project can be found at
In addition, I took the machine out for a spin at my
local Woodcraft. I was able to transport the machine easily
New Project Goals Added
Since the first build was only going to be a proof of
concept, I knew it would be nowhere close to the final
design. Normally when I design a new machine, I do several
iterations, with each new build making improvements on
The machine was an overall success, but it was a little
heavy and had no place to mount the drive controller and
power supply. I decided to add the following goals to the
project based on knowledge gained from the proof of
• Must use engineered material for the frame (plastic,
plywood, or melamine panels).
• Frame must be large enough to hold the controller,
power supply, and computer interface.
• Must have a clamp table.
• Must have at least a 10” x 8” cutting area.
KReduCNC Second Stage
The design for the KReduCNC1 was done using
Autodesk Inventor. This gives me an easy way to create
illustrations and drawing files for this project. An exploded
view of the design is shown in Figure 2.
The final design ended up with an 11” x 9” cutting
area. It supports a small rotary or flex shaft tool as its
spindle. A Foredom spindle is shown in the opening photo.
A clamp table with an adjustable fence are just some of the
features I will add to this build.
The frame is composed of two identical side panels
with separate front and rear panels. A brace is also added
to the top. Sufficient cutouts are added for future updates.
In my build, I used melamine coated particle board. The
design supports any 3/4” material; 18 mm baltic birch
works as well, but can be pricy.
The Y axis consists of two 8 mm rods running between
the front and rear panels. Sitting on the two rods are four
trucks that will carry the load of the table.
The X axis consists of two 8 mm rods running between
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