Pim de Groot's Avatar

Pim de Groot

@mifune

Making stuff

411
Followers
389
Following
410
Posts
14.05.2023
Joined
Posts Following

Latest posts by Pim de Groot @mifune

The two interesting ones are the ss Rotterdam, and hotel New York. There is a stayokay in the cubic houses, but that is a hostel

06.03.2026 20:54 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

I already have way too many hobbies, but the idea of cat girl warhammer 40k might get me into painting miniatures.

02.03.2026 15:24 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
Video thumbnail

Fixed the track, and made the Big Boy pull a long coal train

01.03.2026 12:39 πŸ‘ 3 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
Video thumbnail

Fixed the track, and made the Big Boy pull a long coal train

01.03.2026 12:39 πŸ‘ 3 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0

I put a decent circle of track on the floor and got the full American railroad experience (derailing cars because of bad track pieces, cars needing maintenance, bad couplers.)

28.02.2026 20:05 πŸ‘ 3 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

No, this is the N scale Kato one

28.02.2026 16:28 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
Video thumbnail

And on the move

28.02.2026 16:18 πŸ‘ 5 πŸ” 1 πŸ’¬ 2 πŸ“Œ 0
A small, but also very big model railroad steam locomotive on a dinner table

A small, but also very big model railroad steam locomotive on a dinner table

A top view with a banana electronic conference badge for scale.

A top view with a banana electronic conference badge for scale.

I got a tiny Big Boy locomotive. It was on my wishlist for quite a while, and my local train shop happened to still have one.

28.02.2026 16:15 πŸ‘ 10 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Haha, this is great. Well done. And I’d love to read the blogpost about how you did it.

24.02.2026 10:23 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

I don't think I'm going to bother solving that problem, I got Cellz in a kit with a nifty case and I'll just put it back into that.

I want to use this one as a testbed for my own modules. And I guess I'll have to make something to sequence CV.

21.02.2026 22:40 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
A case segment on a table

A case segment on a table

This is what the interior looks like, a ridge/slot for the transverse direction, and a bolted connection for the longitudinal direction.

It turns out that Cellz really needs a 5V supply, which the power module I got for this case does not have. In my main case I replaced it with a keystep pro.

21.02.2026 21:19 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
A gray matte building with a F unit and two Erie boxcars in front of it

A gray matte building with a F unit and two Erie boxcars in front of it

I designed and 3d printed a building for my model railroad. I went for abandoned concrete warehouse. I think it looks nice, but I do need to research the architecture and dimensions of industrial buildings some more for the next one.

21.02.2026 16:59 πŸ‘ 6 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

It is the most annoying part about Nikons, everything else goes in the right direction

21.02.2026 10:00 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
A case with black ends and handles, with bright colored parts in between. It’s filled with eurorack modules

A case with black ends and handles, with bright colored parts in between. It’s filled with eurorack modules

I needed a eurorack synth case which was a bit more portable, so I designed a modular 3d printed case.

21.02.2026 07:47 πŸ‘ 6 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

I got a D100 and was amazed how good it still was. A bit later I picked up a D70 for about the same you payed, and converted it to take infrared photos: bsky.app/profile/mifu...

20.02.2026 14:19 πŸ‘ 14 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
Video thumbnail

I got my CLK module to blink again. This time programmed in rust

11.02.2026 20:15 πŸ‘ 4 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0

That looks amazing. Yeah, I understand why you're getting Ideas.

10.02.2026 20:29 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

I feel that, every time I want to start building a layout I get some parts and other things happen. I lose the time and energy to build something and I have trains gathering dust. But I really want to build one.

Was there anything really inspirational you've seen?

10.02.2026 20:08 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

What I would really like to see come out of the discord announcement is a replacement that I could install and run myself on a physical server. Like I could do with IRC and a computer running as fast as a potato.

09.02.2026 17:12 πŸ‘ 4 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

3D printing is the future!

(I just had to clean the buildplate of my printer with water and soap because my prints suddenly stopped sticking to it)

08.02.2026 21:48 πŸ‘ 3 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Happy Birthday!

08.02.2026 21:37 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Yes, I lifted traces and otherwise destroyed two boards trying to fix it. I’m happy it works now.

07.02.2026 19:36 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
A module made out of printed circuit boards with a big label 555. Soldering stuff and a cable is laying around it.

A module made out of printed circuit boards with a big label 555. Soldering stuff and a cable is laying around it.

I got the right potentiometers today, and I found the 555 timers I ordered years ago. I soldered two modules, tested them, and discovered that I connected a pin of the timer incorrectly.

Soldering two more modules with a cut trace and a bodge later and I have a working synthesizer module.

07.02.2026 19:36 πŸ‘ 2 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
A bright led connected to a portable usb-c bench power supply

A bright led connected to a portable usb-c bench power supply

And the small pcb works!

05.02.2026 16:39 πŸ‘ 7 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
A couple of black and white pcbs on a desk

A couple of black and white pcbs on a desk

Got my first pcbs in ages in. I designed a eurorack module, a pmod with shift registers and LEDs, and a small board with an smd LED for model railroad use.

05.02.2026 16:39 πŸ‘ 189 πŸ” 9 πŸ’¬ 5 πŸ“Œ 0

My hackerspace is in an old office/warehouse filled with artist spaces and small creative companies. It’s not really downtown, but it’s a great location. The downside is that we might have to leave in 2028 if they want to demolish it and replace it with a too expensive apartment complex.

26.01.2026 18:11 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
A single person walking on a train station platform, in a very wide view

A single person walking on a train station platform, in a very wide view

A wide platform

Another experiment with using 35mm film in a medium format camera. I made my own 120 roll by taping film to a paper backing and rolling it up in an dark changing bag. And then putting it in a Fuji GSW690ii.

24.01.2026 16:44 πŸ‘ 10 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0

If you want high precision you use the Precision Time Protocol (PTP). If you want to be really precise you can also use CERN's White Rabbit

24.01.2026 09:24 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Or getting written about by a pc gaming website…

20.01.2026 07:47 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
A wide view of a train platform with a single person walking on it. Made with a Fuji GSW690ii on 35mm Fomapan 200 taped onto a paper backing of 120 film

A wide view of a train platform with a single person walking on it. Made with a Fuji GSW690ii on 35mm Fomapan 200 taped onto a paper backing of 120 film

The corner of a concrete parking garage with a security camera attached to it. Leica M4 and Fomapan 200

The corner of a concrete parking garage with a security camera attached to it. Leica M4 and Fomapan 200

A view of a street lined with cars and a large building at the end. Made with a Fuji GSW690ii on Fomapan 400

A view of a street lined with cars and a large building at the end. Made with a Fuji GSW690ii on Fomapan 400

Two swans swimming in a canal in Delft, with typical old Dutch houses in the background. Made with a Fuji GSW690ii on Kodak Gold

Two swans swimming in a canal in Delft, with typical old Dutch houses in the background. Made with a Fuji GSW690ii on Kodak Gold

I mostly use the three speeds of Fomapan for B&W, stand developed in HC110. in 35mm and 120, for about 6 euro per roll. Color is whatever expired stuff I still have. Kodak Gold if it has to be good, for about 13 euro per roll plus 8 for 1 hour development.

19.01.2026 20:38 πŸ‘ 12 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0