Version two of the CNC controller I have been helping develop is now in my workshop. I have had a chance to do some testing and it is performing very well. There is a “Sneak Preview Two” over in The Hobbyist Machine Store Blog.
This is my recommendation for the Taig CNC Micro-mill. Of course it can be used for many other CNC machines. Taig has a somewhat unique issue against running at high speeds. The 20 TPI screws provide excellent torque but require 2,000 rpm to achieve 100 IPM (Inches per Minute) travel. Most steppers max out about 1500… Continue reading
Here is a sneak peek at a brand new Taig CNC ready mill running some 185 oz/in steppers with a new control I am testing and evaluating. There will be a few updates before I can discuss the new features. Here it is running a 3D carving program at 50 IPM. Short micro moves on the Z axis are creating the crunching sound. Sweet music to a CNCer.
I use the Mayan calendar as my CNC test program. It is highly detailed and makes the stepper motors really earn their keep. In these photos I show where I have reduced the circle diameter to just under four inches. This is about as small as I can go with this design. I got it off center a skosh. That’s OK, it’s not a keeper. The test is not of the Taig mill but rather the tiny wax profile bit I bought from Bits & Bits.
The bit is 1/8″ in diameter half round with a 15 degree included… Continue reading
I ran some Lithophanes this evening. I realized I had my iPhone in my pocket so I grabed a short segment of the HB2 in operation.
What you need to note is the quiet operation with the Taig spindle running at 10.600 RPM and the bit cutting at 50 IPM (Inches Per Minute). Most of the noise is the cutter in the Corian solid surface material making the 0.10 to 0.20 depth cut. If you listen carefully you can also hear the higher pitch “chirping” of the z axis stepper motor. I am “eighth stepping” the motors so it takes… Continue reading