Sunday, May 19
Shadow

Woodworking

Designing a cool smart doorbell for my house

Designing a cool smart doorbell for my house

CNC, Electronics, Uncategorized, Woodworking
Introduction Our doorbell's button stuck in the pressed position and caused the electromagnets coils to melt. I decided to use this project as an opportunity to design my own door bell using off the shelf hardware for the electronic and custom wood / acrylic case. I was also looking at a small project to try resin coating wood in order to get some experience for my upcoming computer desk project. Requirements: Fit with the decor - approx 10'' x 5'' x 2'' Play a mp3 / wav file when the doorbell button is pressed Include addressable led strips for lighting effects Use off the shelf component for the electronics Easy to program so my kids can help Use existing wiring (2 wire power + 2 wire button) Hardware Raspberry PI 3b + Raspian OS I wanted to use ...
Wooden coaster

Wooden coaster

CNC, Uncategorized, Woodworking
I experimented inlaying different woods to produce attractive design.  I decided to make a coaster so I could use it afterward.   I used my upcoming company logo as the basis of the design and decided on a 4" coaster diameter, plain round for now.   I used a 60 degrees v-bit, 16K RPM, 65IPM feedrate (could have gone faster but I went with safe values).  I then glued the two parts together, making sure there was glue in every corner to prevent lift-up / delamination later, used regulard yellow wood glue.  I then clamped overnight to allow to dry.  Next morning, I used my bandsaw to remove the backing of the inlay and then sanded everything smooth using 180, 320 and 400 grit.  I than applied 6 coats of glossy varnish, sanding with 600 grit in b...