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Category: Workshop

Volkswagen e-Up! 80% charge trick

Posted on 2026-06-072026-06-07 By rolfje No Comments on Volkswagen e-Up! 80% charge trick

Charging an electric car battery to 100% all the time will wear out your battery faster. Many cars have settings to manage this, and some cars even manage it themselves (like your MacBook, they learn when to charge and how much). Not so much for the Volkswagen e-Up!, but here is a trick to have it always stop charging at 80%.

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Workshop

Volkswagen Up! Garmin Conversion

Posted on 2026-05-312026-06-07 By rolfje No Comments on Volkswagen Up! Garmin Conversion

In their infinite wisdom and search for an affordable quality infotainment and navigation, Volkswagen partnered with Garmin. That would nog have been a big disaster, but in their search for a budget solution they put the standard Garmin/Navigon screens on a little arm that protrudes out of the dashboard not unlike a scene from the movie “Alien”. If you have an (otherwise fine) Volkswagen Up!, e-Up!, Skoda Citigo, or Seat Mii (which are basically the same cars), see how I converted a Garmin holder into a proper Magsafe adapter, holding your phone and charge it without extra wires running over your dashboard.

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Hardware, Workshop

Remove DataTool Alarm

Posted on 2024-09-012025-10-17 By rolfje No Comments on Remove DataTool Alarm

If you have a Triumph Motorcycle and the Datatool evo, S3 or S4 alarm gives you headaches, there are two things to know:

  1. The alarm is virtually irrepairable because it is filled with silicone
  2. There is an easy trick to remove/disable it without permanent damage to the bike or the alarm.

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Electronics, Hardware, Racing, Workshop

Designing a Fox-hunt antenna

Posted on 2016-06-19 By rolfje No Comments on Designing a Fox-hunt antenna

3d radiation patternMany years ago, I used to do some radio fox hunting with cars. Usually these hunts are at night to make it more exciting, and can be great fun. As I got older I lost interest and moved on to other things. But last year, I decided to have a go at a popular balloon fox hunt on 144MHz. This is quite a large scale and professionally organized fox hunt by Dutch Radio Amateurs.

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Hardware, Workshop

Print posters on a regular printer with Excel.

Posted on 2014-05-15 By rolfje No Comments on Print posters on a regular printer with Excel.

TS-50-RX-TX-board-banner

I recently needed to print out a big schematic diagram of the RX/TX board of a Kenwood TS50 Transceiver. This did not fit on a single piece of paper. Instead of downloading all kinds of crappy tools or uploading the image to some “free” site which is going to use it for whatever they think justifies their definition of “free”, I found out you can do this in Excel. Here’s how:

  1. Make sure the image you want to print out as a poster has a decent resolution
  2. Open Excel (maybe this will work in LibreOffice too, I haven’t tested, let me know)
  3. Drag the image into a new worksheet so that it is top-left of the sheet.
  4. Open the “Print preview” (the little icon in the bottom left of the window)
  5. Resize the image so that it covers more than one page, up to the number of pages you’d like the poster to be. Your screen should now look somewhat like this:
    Screen Shot 2014-05-15 at 21.58.23
  6. Optional: Adjust the page margins.
  7. Print.

After this, you’ll be gluing the pages together, but I think you already figured that out beforehand.

Have fun!

 

Fun, Workshop

Catnip Watering System

Posted on 2011-12-04 By rolfje No Comments on Catnip Watering System

Here’s a one minute how-to on growing catnip without having to water your plants every day.

[youtube=http://www.youtube.com/watch?v=6jyqNzNeQeE]

Fun, Hardware, Workshop

Aeroccino Motor Replaced

Posted on 2011-08-162025-10-17 By rolfje 48 Comments on Aeroccino Motor Replaced

Months ago, I got this broken Aeroccino milk frother for free. This week I fiddled with it for a few hours, and got it to work:

[youtube=http://www.youtube.com/watch?v=kNEqWH3ILDc]

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Hardware, Workshop

Zūmo Mount for Triumph Speed Triple

Posted on 2009-12-30 By rolfje 10 Comments on Zūmo Mount for Triumph Speed Triple

The RAM mount coming with the Garmin zūmo’s are fine, but I wanted something more elegant to go with my Triumph Speed Triple. This article contains a detailed description of building your own mount for the Garmin zūmo 660. I mounted the zūmo on my Speed Triple, but the mount is universal enough to be center-mounted on any bike which has riser-mounted handlebars.

No guarantees ofcourse, you’re on your own from here. Bring your tools and read on.

WARNING: When I tried to cut one of these rubbers in half, the bottom disk came loose. It was not as securely glued to the rubber as the top disk. When pulling the zūmo on the mount it does not come off, but if you want to be sure order the Garmin 550 mount rubbers (described in article below).

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Hardware, Workshop

Packing bags on a Speed Triple

Posted on 2009-04-18 By rolfje No Comments on Packing bags on a Speed Triple

my Triumph Speed TripleAs you may know, I traded in my Honda Sevenfifty for a nice Triumph Speed Triple. While waiting for the bike to be delivered, I tried to fiend out how I can take my hefty 4-star ART chainlock on this bike. Apparently, nobody uses chainlocks on their bikes because I could find no information at all about transporting chainlocks.

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Hardware, Workshop

Replace your mousecable

Posted on 2008-11-04 By rolfje 4 Comments on Replace your mousecable

I recently tried to purchase a Logitech LS1 mouse from Logitech. After not hearing from them for 3 weeks, I ordered the same mouse at Dynabyte and got it within 5 days. Suddenly Logitech woke up and sent me another LS1 mouse. Because they don’t react to mails or calls, I had a spare LS1 to play around with.

I decided to replace the long, rigid cable with a short supple one. Here’s how you can do that, too.

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Apple, Hardware, Workshop

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