Hacker News: Jemm

New comment by Jemm in "Show HN: I missed the moving blocks, so I built a real Linux disk defragmenter"

Jemm — Sun, 30 Aug 2026 07:55:39 +0000

I had a job going to various store locations and running defragment on point of sale computers. It was incredibly zen.

New comment by Jemm in "Will you have spent more of your life with computers than your family?"

Jemm — Mon, 17 Aug 2026 21:09:43 +0000

If I am luchky, yes!

New comment by Jemm in "The Legend of the Novell NE2000 [video]"

Jemm — Fri, 14 Aug 2026 13:34:16 +0000

Ah, the glory days of finding interrupts, network cards that literally caught on fire, hunting down that one screamer that took down the whole LAN. I don't know why we glorify nostalgia, it was cool at the time but not great. Especially horrible was the Novell 'priesthood' who refused to share any information for fear of giving up power.

New comment by Jemm in "France to ban unsolicited telemarketing calls"

Jemm — Tue, 11 Aug 2026 13:39:45 +0000

'unsolicited', means every contract or click will include accepting calls.

Canada tried this years ago and it has barely made a dent. What we really need is a secure telephone system but our regulators refuse to consider doing so

New comment by Jemm in "Ask HN: What are you working on? (August 2026)"

Jemm — Mon, 10 Aug 2026 04:48:04 +0000

RapidCAM.app is still taking up all my time. It is a 2.5D, parametric CAD/CAM program for CNC and laser with flat or 4th axis. Open source, free, run completely in browser.

This is a passion project that I want for my own use but am happy if other's find it useful and very open to feedback and collaboration.

The file system is open and very well defined so that AI can write files. There is an AI Assistant dialog that helps you to write prompts and then takes the AI file and runs the file through a solver and checks.

New comment by Jemm in "ScreenWall – Turn old phones into synced widgets for your space"

Jemm — Wed, 22 Jul 2026 12:32:24 +0000

The flight sim community is going to love this project for home cockpits.

New comment by Jemm in "Biohacker seeking immortality afflicted with incurable 'stomach eating' disease"

Jemm — Wed, 08 Jul 2026 17:01:41 +0000

I completely support people who want to be guinea pigs for health science.

New comment by Jemm in "Show HN: RapidCam – Browser-based, parametric 2D CAD/CAM app for CNC and laser"

Jemm — Sat, 27 Jun 2026 12:16:01 +0000

RapidCam solves the problem I had where I wanted to make parts without having to fully 3D model them first. There are other apps that work in 2d but they tend to be either complicated or not parametric. My initial task was to cut out and pocket cabinet doors and drawer fronts of various sizes. Now I can design the shapes and assign toolpaths for the CNC; then for the next door, I just need to change a few variable values and the design adjusts.

App is open source: GitHub: https://github.com/jennib/rapidcam

Currently no login or signup needed.

Contributions, suggestions, testers are all welcome.

Show HN: RapidCam – Browser-based, parametric 2D CAD/CAM app for CNC and laser

Jemm — Sat, 27 Jun 2026 11:57:38 +0000

Article URL: https://rapidcam.app

Comments URL: https://news.ycombinator.com/item?id=48697477

Points: 3

# Comments: 1

New comment by Jemm in "Ask HN: What are tools you have made for yourself since the advent of AI?"

Jemm — Mon, 08 Jun 2026 21:15:48 +0000

- parametric 2d vector based CAD with CAM https://rapidcam.mycnc.app

- gcode sender and generator https://mycnc.app

- CNC simulator https://sim.mycnc.app

- Cabinet design with door/drawer designer https://cabinet.mycnc.app

New comment by Jemm in "Show HN: Open-source private home security camera system (end-to-end encryption)"

Jemm — Sat, 30 May 2026 13:14:41 +0000

Paint point on most systems is the camera itself. Seems like every Chinese ip camera has some 'ecosystem'. Does you system use any cameras other than Raspberry Pi?

New comment by Jemm in "Ferrari Luce"

Jemm — Tue, 26 May 2026 12:02:47 +0000

"Designed with Sir Jony Ive"; Yikes!

New comment by Jemm in "I love my Bluetooth keyboard"

Jemm — Mon, 25 May 2026 07:27:43 +0000

I think the title really should be, "Smartphone keyboards are so bad I carry a physical keyboard with me"

New comment by Jemm in "dBase: 1979-2026"

Jemm — Mon, 11 May 2026 11:41:24 +0000

I worked in dBase professionally for a long time. Loved the system but the database constantly needing repair was an issue.

New comment by Jemm in "Ask HN: What are you working on? (May 2026)"

Jemm — Mon, 11 May 2026 11:38:35 +0000

I got tired of the paywall surrounding cabinet design so I created https://cabinet.mycnc.app. Just finished validating the door / drawer front gcode generator by milling a kitchen's worth of doors on a hobby grade CNC.

My thinking was that the money I saved doing the cabinets myself would be enough to pay for the Sienci Labs Longmill that I bought for the project.

New comment by Jemm in "Ask HN: What are you working on? (May 2026)"

Jemm — Mon, 11 May 2026 11:34:47 +0000

Would love to see your progress as I am very early on in the same project. I was thinking of using ArduPilot and some custom waypoint generators.

New comment by Jemm in "Ask HN: What Are You Working On? (April 2026)"

Jemm — Mon, 13 Apr 2026 10:23:17 +0000

I got tired of the money wall around cabinet design so I am working on https://cabinet.mycnc.app. Some very alpha features still but getting there.

Making cabinets is not that hard but the industry charges insane amounts of money for it. Since I have to make cabinets for two kitchens I invested in a Sienci Labs CNC so when the cabinets are done I'll have saved money and gotten a CNC out of it which I can then sell or use for other things.

New comment by Jemm in "Netflix Prices Went Up Again – I Bought a DVD Player Instead"

Jemm — Fri, 10 Apr 2026 12:23:29 +0000

I just stopped watching movies or anything on broadcast television. Problem solved.

New comment by Jemm in "Britain today generating 90%+ of electricity from renewables"

Jemm — Sat, 28 Mar 2026 13:56:47 +0000

If by renewables you mean lumber from Canada, then sure.

New comment by Jemm in "Online age-verification tools for child safety are surveilling adults"

Jemm — Wed, 11 Mar 2026 01:23:00 +0000

Or we could let parents raise their own damn kids without making our lives worse. Parents can sign up for parental monitoring or better yet spend some time with their kids.