Borbin the 🐱

The Altas 7B shaper is a rare metal shaper dating back 70+ years. Even more rare is the optional indexer.
And a perfect new project to replicate this rotary indexer for my Atlas shaper!

While browsing eBay for some suitable round table with t-nuts I could use to get started for the project, I found this:

An original S7-425 rotary indexer table! Arrived a few days later:

With the top of the indexer covered, I needed material for the base. Lots of 3/4" thick 8" round plate available at eBay:

But a few mm to large for the lathe. To get the jaws a good grip and to pass the bed of the lathe, I had to cut out the four sides to make it fit.

Cutting out the hole for the plate:

This setup is for the engraving. With a insert for cutting threads, the degree ticks were done. A simple wood block ensured a constant length of the tick marks. Once done, the 5 and 10 degree marks were done with a slightly larger depth.

First part of the base is finished.

Next to Bellevue Square was the annual Snowflake Lane parade.
With no fisheye but a normal focal length lens, taking the pictures were challenging with the close distance to the parade, but turned out not too bad.

The new Arduino MKR 1010 was released this year and supports wireless connection. It is similar to the M0 Pro, in that it also uses a SAMD21 32bit processor. It is much smaller but has the same amount of I/O pins available as the M0 Pro.
I had to try it out!

The previous setup was using an Ethernet shield that connected the controller by cable with the router.

I moved everything to an experimental board and switched out the Ethernet class and replaced it with the new Wifi class, along with a few other changes to get it working.

The bright spot in the middle of the board is actually a RGB LED of the wireless controller! I use each of the three colors to indicate HTTP requests, update of time and wind data and update of the air pressure, humidity and temperature.
Out of a brightness range from 1..255, 7 seems a good value to match the internal yellow LED.
It is also possible to use a digitalWrite on the LED port to switch it on or off. This is the same as using analogWrite with 255. This is very bright.

const int GREEN_LED = 25;
const int RED_LED = 26;
const int BLUE_LED = 27;
const int LED_Brightness = 7;

// Configure the LED port of the wireless controller.
WiFiDrv::pinMode(GREEN_LED, OUTPUT);
WiFiDrv::pinMode(RED_LED, OUTPUT);
WiFiDrv::pinMode(BLUE_LED, OUTPUT);

// Set the LED.
WiFiDrv::analogWrite(GREEN_LED, bGreenLed ? LED_Brightness : 0);

The webserver on the board provides a full HTML page and the weather data in a json format for the AJAX requests that gets updated every second.

The matching App is using the AJAX data for display

and also provides access to the weather data for wind, temperature and air pressure stored in the 32Kb chip.

October 6th, the NBA is playing in the Seattle KeyArena. Golden State Warriors vs Sacramento Kings in an exciting pre season game!
Five 12mm shots were enough to capture the whole arena, before construction begins on the $700 million renovation.

One the way back, a view on the newly renovated Space Needle in the moon light. This was just one 12mm shot.

The 300° stereographic down projection is also known as the little planet projection. Usually it is used to transform a 360°×180° into those famous little planets, but in this example it is applied on a vertical 180° panorama with the last photo upside down:

Loaded into PTGui with the little planet transform:

Gets you this amazing view:

See also Panotools projection, The Balcony Panorama, Panotools projections example and Use Case for Transverse Mercator Projection ✅.