Final PCB for the CNC Done (for now…)

Finished my fourth board in as many weeks, finishing off the bare minimum of boards I need to get the CNC mill back up and running. This board mounts inside the machine itself, and connects via a cable back to the main PCB in the control. This board connects via screw terminals to the various ...

Soldering Techniques from Youtube 4

Ran across this:

First pcb.laen.org PCBs Received!

A sparkly purple metallic bubble wrap package was waiting for me in the mailbox this evening when I arrived home.  I knew that it had to be the boards that I sent out back on January 2, arriving just a few days over the ~2 week time generally predicted by Laen.  The quality of the ...

CNC Breakout Board Done

My latest board is designed, laid out, and hopefully safely in the hands of Laen over at Dorkbot PDX. This is the main “breakout” board for the CNC electronics cleanup.  It connects to my fancy new Mesa Anything I/O FPGA interface card, and provides some protection and signal conditioning before connecting to the myriad of ...

Another PCB Sent to Fab 4

I’ve completed the design and layout for another PC board, all part of the CNC milling machine electronics cleanup project.  This one is a nicer version of the isolated PWM to +/-10VDC output circuit, which I had prototyped on perfboard a couple weeks ago.  This circuit is used to drive a fancy KBMG-212D DC motor ...

2012… A New Year of Collaboration? 1

The new year is upon us, and the hangover from seeing 2011 in the rear view mirror is still tenaciously clinging on.  The new year is a good excuse to think about goals that have been met in the last year, and to dream up new ones for the coming year and beyond.  This post ...

Shaking off the Rust 3

It’s been a long, long time since I’ve done a PC board layout.  Like, probably on the order of ten years.  I think I may have done one design for work somewhere in the last ten years, but as far as I remember, the last thing I did for my own edification was the 6-layer ...

Mountain Bike Skid Plate

One of the guys I ride with recently bought a new bike from Solstice, which is a very small one-man operation.  One of the unique features of the bike is its inverted 4-bar suspension in the rear of the bike.  One downside is that a big piece of the suspension linkage hangs down below the ...

QCTP

Last night I decided to get my Quick Change Toolpost installed on the lathe.  A Quick Change Toolpost (QCTP) allows one to quickly swap cutting tools on a lathe, and perhaps more importantly, allows repeatable height adjustment of each tool with a thumbscrew.  With the four-way turret toolpost that came with the lathe, each tool bit ...

Lathe Hoisting

With the lathe arriving at the house last week, I needed to formulate a plan to get it up onto the bench.  I borrowed a 1 ton chain hoist from one of the guys I mountain bike with, so all that was left to do was work out the precise details of where to hang ...