Life & fun · alternatives · 2026
24 alternatives to Duct Projectile / Line Carriers
Available in five sizes with solid mating guaranteed
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Duct Projectile / Line Carriers launched in 2021; newer entries below may have overtaken it.
- 1
- 2
- 3
- 4IB
Hi HN, This is my attempt to fix groggy mornings by lowering my bedroom CO2 from 1700 ppm to ~900 ppm. I designed a simple, 3D-printed fan duct that directs air under the door to improve air circulation. A note on the design process: I used CadQuery, a Python library for creating parametric 3D models. I didn't know tools like this existed and highly recommend it if you can program; it turned out to be more convenient than manually iterating on prototypes in a GUI. The project is open source and the post explains the full build. Happy to answer any questions.
2025 · lepekhin.com · its alternatives →
- 5
- 6
- 7
- 8
Offline HVAC calculator: R-454B PT, superheat, duct, load
Jul 2026 · apps.apple.com · its alternatives →
- 9
- 10AR
Hi HN, I’m sharing a small open-source project I’ve been working on: a native C++ ballistic solver that computes launch angles to intercept moving targets in real time, under gravity and air drag. Instead of relying on vacuum assumptions, closed-form equations, or lookup tables, the solver formulates the intercept as a nonlinear problem and solves it numerically using time integration and iterative methods. The motivation came from game and simulation scenarios where simpler approaches tend to break down: - moving targets - strongly curved trajectories due to drag - real-time constraints The…
Jan 2026 · its alternatives →
- 11
- 12IM
2023 · ubavic.rs · its alternatives →
- 13BX
iny team (3 devs, 1 artist) here—sharing our first game: BALL x PIT, a survival roguelite focused on physics-based ball combat. Key bits: Unique ball types (Bomb, Black Hole, etc.) with distinct bounce/effects 42 evolutions via clear fusion (no random unlocks) Base-building for permanent run perks Launched 5 days: 300k+ sales, 95% Steam positive. On PC/PS5/Xbox (Game Pass free)/Switch ($14.99). Happy to answer questions, and we’re prepping an update with more fusions. Thanks for checking!
Oct 2025 · ballxpit.net · its alternatives →
- 14
Precision Eurocode Ductility for Seismic-Resilient RC Design
2025 · ductility.eu · its alternatives →
- 15
Turn your spare change into miniature siege engine!
2020 · its alternatives →
- 16
Cryogenic Semitrailer Manufacturer
Jul 2026 · dswgascylinder.com · its alternatives →
- 17
Calculate tube thicknesses for fired heaters in refineries
2024 · firedheater.pro · its alternatives →
- 18
Built for the trade. Not the rack.
Jun 2026 · helixalindustrial.com · its alternatives →
- 19
Resistant to impact, sunlight and fire
2023 · its alternatives →
- 20
- 21
The ballistics calculator for better data and better shots.
25d ago · atlasballistics.com · its alternatives →
- 22
Twenty-two calculators for everyday engineering problems
Jul 2026 · freewww.com · its alternatives →
- 23
IGFA-compliant fishing line recommendations for any species
Apr 2026 · fishinglineguide.com · its alternatives →
- 24OT
ssh 85.27.249.130 -p 2222 username / password does not matter Enjoy asci[l]icious lava lamp action right in your console. Quickly hacked together in node, using a fifo file, hasciicam and the ssh2 library, running in docker for "security" :)
2020 · its alternatives →
Also compare
Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →