Monday, March 4
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Tag: electronics

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 ...
CNC Milling Machine – Limit switches

CNC Milling Machine – Limit switches

Electronics
Spent the evening adding limit switches / home switch on all axis.  I'm not sure yet if the controller will support a home switch but I would rather have hard limit switch with a separate home switch : I want to eleminate any chances of the motors pushing against the frame on a axis stuck at the end of its course. Switches holders and limit switch bumper are all going to be 3D printed with ABS Cya
CNC Milling Machine – Update

CNC Milling Machine – Update

Electronics
This is really starting to take shape.  Added the motor mounts (3D Printed ABS), Z axis motor / plate. Fixed various issue with the project structure in Inventor (adaptive parts, constraints etc). Order for rails and extrusions will be placed this week. Next steps are the connection between screw leads and carriages for X / Z axis.  I also need to figure out limit switches / wiring.  
DIY CNC Update

DIY CNC Update

Uncategorized
Hi all, Worked a few hours on the design of the cnc machine.  Added 2 extrusions on X axis + plates to build up a stiffer beam.  Not sure I'm going to need it but I wanted the holes pattern to be in the side plates if needed.  I also added side shields with protect the linear rails and also will stiffen the Y axis C beams.  Spoiler board is quickly added, need to do pattern holes.  I intend to use the machine itself to drill all the t-nut holes (same for the side shield).  My goal is to build the minimum required to be able to use the machine itself to machine the rest of the parts Good night

Designing a DIY milling / routing / engraving machine

Electronics
I'm in the process of designing a new CNC milling machine (gantry-style) After searching the internet for open-source designs, I couldn't find a design that meet my requirements Below 3000$ cdn At least 36" x 24" work area Extremely rigid frame Must be able to work with wood, plastic, aluminium and steel > 6" clearance on the Z axis  Long lasting mechanic (no plastic wheels to wear down) Open source so I can tweak and upgrade Readily available hardware I've found many designs on http://www.openbuilds.com/?category=cnc-router-builds&id=286 and https://id2cnc.com/ but nothing that meet all my requirements.  I decided that the risk of building a machine that wasn't strong enough and would need  to be replaced in a year outweighted the complexity of a new...