Solar-powered powerbank, 18650 cells removable

Open Air Festivals are finally happening again and I was searching for a way to keep my Lithium batteries charged on a 5 day / 4 nights camping trip. There …

Miniware TS80 Soldering Iron OLED replacement

After hardly using my TS80 USB soldering iron, I realized the screen had gone dark. Hardly readable dark. First reaction: Firmware update! IronOS works great (e.g. shows how many Watts …

Short Wheelbase Recumbent Bike – Pt. 4

The previous parts are here: Part 1, Part 2, Part 3 So the drum brake of the rear wheel was fine, but I needed new pads for the side-pull caliper …

Short Wheelbase Recumbent Bike – Pt. 3

The previous partes are here: Part 1, Part 2 Up next: Steering. The MTB handlebar had to be cut, but could be re-assembled using a part of the Hercules frame …

Short Wheelbase Recumbent Bike – Pt. 2

So, as stated in Part 1, I got myself a welder and two donor bikes. Then I tried to follow the AtomicZombie general tutorials (lower half here) as well as …

Short Wheelbase Recumbent Bike – Pt. 1

When the COVID pandemic hit Europe about two years ago, I was looking for some new kind of project. 3D-printing was getting repetitive after several revisions of the “BeX5S” and …

BMW i3 / i3s diagnosis – suddenly Open Source?

Deep OBD In the old days, diving into the control units of BMWs either meant using their tools (and not getting enough info on the WWW, as forum admins censored …

TronXY X5S – upgrade to E3D Hemera

On February 20th I uploaded my (then untestested) CoreXY gantry set for the X5S / X5SA to YouMagine and Libre3D. So what happened before that and within the month afterwards? …

X5S Z axis – braced, single motor driven & balls of steel!

While my last modifications to the gantry went not that smooth, the single-z-motor-conversion was a complete success. But let’s start with the basic stiffening and how I got the PSUs …

X-Carriage for BMG and threaded v6 heat sink

It has been a while, since I posted about this Sanjiu / SANBrother Metal BMG extruder – Aero style and re-designed my X carriage for it. The STLs and OpenSCAD code …