Saw at an angle (device for Bulgarians, Fortune, USM)
This device helped me to saw a bundle of rolled metal at an angle of 90 degrees without effort.
Now I'm building a second CNC machine, the working field will be 1050 * 1050 mm. For the frame, I needed to cut a profile pipe and corners. I had a Bulgarian, but I did not want to saw manually, this would lead to big errors. For half an hour I built a simple device that allowed me to cut the metal exactly at an angle of 90 degrees.
I need a tachometer to calculate some mechanisms. For example, to calculate the speed of a robot vacuum cleaner, you need to know the rotation speed of the electric motor and, based on this, calculate the gear ratio of the gearbox.
Candles in the shape of eggs perfectly complement the Easter holiday. The unusual shape of the candle very much like the grandmother.
Today, instead of round guides, the printer received square, using a conventional aluminum profile tube with a cross section of 20 * 20 mm. Bearings roll along the pipe 623zz. All plastic parts were printed on the same printer before it was altered.
I decided to try how my homemade 3D printer will cope with small models, for this I chose mini-toys and printed them.
This cool garland is assembled according to the design of Alex Hyvera using Arduino and an address LED strip. The garland has many interesting effects, a running text, several games and the ability to control all this from a mobile phone.