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Blog and Portfolio of Jelmer Volbeda

Hi! My name is Jelmer Volbeda. I like to build stuff in any way and figure out how stuff works. This mainly includes mechanical design, software, electronics, but i also like to do woodworking, metal working, 3d printing and so much more. I like to take a shot at it all.

At adebloV you will find details on some of the bigger or more interesting project. I hope some of those post will be helpful to others working on similar stuff!

These are a series of projects from the old box. Things I build when i was around 16-17 years old, before starting with the technical study at the HBO Mechatronics.

Woodworking furniture and woodturning

marble machines

Metal casting and forging

Knife making

A DIY Camper unit, but extra compact. Started with a 2002 Daihatsu Hijet pick-up, a small japanese kei truck, although of the original european release with a larger engine and left-hand steering wheel.

Designed to be used as a Plasma cutter, uses two 3D-printed RV-reducers (detailed previously). Controlled by a Raspberry Pi PICO microcontroller running a custom fork of grblHAL to support the scara kinematics and plasma THC.

This is an older project (started in 2018) but is probably the most useful thing I build, and is therefore one of my favorite projects.

The lasercutter has a useable work area of 80x110cm. It uses a 50W laser tube that can cut upto roughly 10mm wood. I use it mainly to cut plywood parts, but it can also cut acrylic sheet, fabric, etc. It can also engrave things with text, paterns, or even images...

High-end robots require actuators with high torque and high precision. The popular choises are Harmonic Drives (strain wave) or Cycloidal Drives. Both offer compact reduction and low backlash, which makes them more suitable than regular spur gears or planatery gear sets. A newer and less popular option, for now, is the RV reducer. This combines the cycloidal drive with a set of spur gears to adres...