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Benjamin Corey

@benjamincorey.net

47 followers 52 following 39 posts

Working on parametric model definition at Zoo.dev. Prev @ Onshape. I like having fun on the computer

Posts Replies Media

Benjamin Corey @benjamincorey.net · 23h

Some are saying it led to cache drops on the L just above

Philly L station, dot matrix screen showing dropped cache messages instead of train arrival times

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Benjamin Corey @benjamincorey.net · 05/10/2026

Nonblocking async sushi blocking north front street

Selfie with a “Tokio Sushi” truck parked across North Front Street under the philly L

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Benjamin Corey @benjamincorey.net · 07/07/2026

Big fan of @gvasquez.dev‘s bookshelf. About to learn some stuff

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Benjamin Corey @benjamincorey.net · 25/06/2026

I have been judged

Smoothie in hand in front of the world’s most ostentatious smoothie vendor, erewhon

Blurry nighttime POV shot of a tablet on back of a car seat saying “you’re riding in cab 6666”

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Benjamin Corey @benjamincorey.net · 24/06/2026

Guy who’s only seen obscure pop culture reflections of the city, visiting LA: Getting big “Lego Paradisa” vibes from this…

Poster for “lego paradisa” theme from the 90s

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Benjamin Corey @benjamincorey.net · 19/06/2026

Finally got around to using the fiber laser at @hive76.bsky.social . Being able to cut brass is amazing

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Benjamin Corey @benjamincorey.net · 16/06/2026

Current draft of the magnetic coupling system with I2C pogo pins

Model train chassis with linkage, pile of prototypes in the background

Showing wiring and assembly of the linkage

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Benjamin Corey @benjamincorey.net · 07/06/2026

lucky to be alive at the same time as parametric solid modeling

model train chassis onshape assembly with couplers, bogies, undercarriage etc

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Benjamin Corey @benjamincorey.net · 16/05/2026

Prototyped in translucent purple if you’re into that. Vase mode was fun. Turns out if you make pinch points < 2x the nozzle diameter you can get distinct closed regions from a single continuous spiral, which is great for strength

Translucent purple profiles of various sizes and shapes about 1 inch thick

Translucent purple prototype illuminated

2 of the final design in green hanging next to each other

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Benjamin Corey @benjamincorey.net · 16/05/2026

Big thanks to @techsquidtv.com & @indyhall.org for having me last week. I talked about what goes into making parametric CAD software and why it’s not yet a solved problem! Also showed off this lamp I designed from a 2d array of 8020 extrusion profiles

Me talking about CAD with an onshape document on screen

The lampshade from the onshape document printed in translucent green & illuminated

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Benjamin Corey @benjamincorey.net · 02/05/2026

And with the chassis. Truffle isn’t sure what to make of the train yet

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Benjamin Corey @benjamincorey.net · 02/05/2026

Here are the prototype internals, just containing a 22000uf capacitor to compensate for intermittency in power & some wiring to share the track contacts between the motors. The plan is to pack a pi pico, nfc board, and motor controller in there as well

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Benjamin Corey @benjamincorey.net · 02/05/2026

I found some old train tracks in a thrift store and I’ve been working on making a subway car for them

Section view of a train bogie showing internal channels for wiring

Photos of prototype 3d printed train bogies, starting with simple nails for axles and culminating in a powered bogie with motor + gears + wiring + track contacts embedded in the design

Dozens of prototype 3d prints of train parts, all rejected for some reason or another

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Benjamin Corey @benjamincorey.net · 02/05/2026

Terrible train accident in philly yesterday. NTSB investigation ongoing.

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