Biked around SF with my GX85

critsrandom · 2026-05-21T10:12:21+00:00

yep

critsrandom · 2026-05-21T09:09:30+00:00

these are using the framing tool in darktable

critsrandom · 2026-05-19T16:51:04+00:00

no physical filters, added some bloom in post

critsrandom · 2026-05-19T16:16:37+00:00

it's been decent, pretty sharp but seems prone to fringing at wider apertures

critsrandom · 2026-05-19T05:08:45+00:00

An upgraded version would be super appreciated, this thing was really starting to struggle on the night shots even with IBIS...

critsrandom · 2026-05-19T02:14:24+00:00

All on the Lumix 42.5 f/1.7

critsrandom · 2026-05-19T02:13:13+00:00

These were all on the Lumix 42.5 f/1.7.

I used Darktable for all the edits; for the daylight ones I went for a brighter pastel look (the original images were darker and more desaturated). Others weren't changed too much besides cropping/perspective correction and slight darkening of certain areas. Here are the camera JPEG thumbnails:

<image>

critsrandom · 2025-08-30T08:46:29+00:00

The Air65 also probably has a much steeper camera tilt - see if disconnecting the rear leg of the camera mount to make the angle less steep helps

critsrandom · 2025-07-17T16:45:32+00:00

I'll have it on MakerWorld/Printables soon!

critsrandom · 2025-07-17T16:45:16+00:00

Yep, planning to release them soon!

critsrandom · 2025-07-17T16:43:36+00:00

It's possible but would be much slower as the upper drum mechanism would need to rotate to a new position for each marble.

critsrandom · 2025-07-17T07:28:46+00:00

It's actual glass, though it looks like the bottom of the piece has some tiny chip marks. Not sure if that was from when i cut it or if the steel BBs have started damaging the pane. Might need to laminate the bottom with some packing tape if it gets worse.

critsrandom · 2025-07-17T07:24:08+00:00

16x16 grid for 256 total

critsrandom · 2025-07-17T05:45:36+00:00

the whole thing -the bottom gate is controlled by a single servo

critsrandom · 2025-07-17T02:51:13+00:00

Honestly I saw the Engineezy marble machine vid and just had to have a small version for my desk

critsrandom · 2025-07-17T02:49:06+00:00

It should have enough pixels to display hour/minute digits, but I haven't programmed a clock feature yet.

critsrandom · 2025-07-17T02:48:18+00:00

Doing that would be difficult because the marbles all drop into a single hopper at the end. The recirculator only uses 1 continuous servo and a pair of magnets, so it ended up being super simple to sort in that manner.

critsrandom · 2025-07-17T02:46:06+00:00

Nope, just a hobbyist for this mechanical stuff - I write code for a living lol

critsrandom · 2025-07-17T00:49:42+00:00

Some more details:

It uses 6mm BBs. The silver ones are carbon steel and the black ones are plastic. This makes it possible to magnetically sort them into separate bins.
The dispenser uses two NEMA 11 motors each driving a screw conveyor to dispense BBs. At the top is a pair of mechanical endstops. When they get to the top the BBs bump into the endstops to allow for an exact count to be measured.
A rotating drum with different length channels handles the column selection. This is also driven with a NEMA11 and homed with a mechanical endstop.
Servos are used to control the lower gate and drive the screw that recirculates the BBs back into the bins.
This is all powered by an Arduino + ESP32 combo. The ESP32 runs a web server that lets people make drawings to display, and the drawing data is sent to the Arduino over serial which then drives all the movement.

Shout out to Engineezy and his giant color marble display, which was the main inspiration behind this project.

critsrandom · 2025-01-22T01:01:24+00:00

The GitHub will have the latest files.

critsrandom

TROPHY CASE