3d printing

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Bambu Lab is abusing the open source social contract
6 days ago
- The author blocked their Bambu Lab printer from the internet, stopped firmware updates, and switched to OrcaSlicer to maintain control over the device.
- Bambu Lab threatened legal action against the developer of OrcaSlicer-bambulab, a fork that bypasses the cloud delivery mechanism, accusing them of impersonation and security risks.
- The fork uses the same AGPL-licensed code as Bambu Studio's Linux version, and the author criticizes Bambu Lab for misunderstanding open source culture and security.
- The author suggests skipping Bambu Lab altogether as a solution, with community support for the developer from figures like Louis Rossmann.
Tuning in FM Radio on a 3D Printer Heatbed
6 days ago
- A 3D printer's heatbed can act as an antenna, but its traces are designed for DC heating, not RF optimization.
- Using a NanoVNA, the experiment found SWR notches around 1 GHz, 130 MHz, and 43 MHz, indicating potential radio reception frequencies.
- Within a mile of a high-power FM transmitter (e.g., 30+ kW), the heatbed can pick up clear stereo FM signals.
Print a Stencil – SVG to 3D Printing PCB solder paste stencil
15 days ago
- SVG2Stencil is a tool that converts SVG or Gerber paste layer files into STL files for stencil creation.
- Optional edge cuts can be specified for board boundaries using Gerber or SVG files.
- Configurable stencil parameters include size (width, height, thickness), detail level (resin option for small apertures), and board lip settings with height, wall thickness, and fit clearance.
- Supports interactive features like drag to rotate and scroll to zoom for preview before downloading STL.
Stenchill: 3D Printable Solder Paste Stencil Generator
16 days ago
- StenchillBeta provides a free service to generate 3D-printable PCB stencil files from uploaded Gerber files.
- 3D-printed stencils are suitable for prototyping and small batches, especially for components 0603 and larger.
- The platform offers features like a KiCad plugin, a step-by-step guide for beginners, and user community previews.
- Recommended 3D printing settings include PLA or PETG material, 0.2mm nozzle, 0.1mm layer height, and 100% infill for optimal results.
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Show HN: Jdan's Japan subway station icons
25 days ago
- The webpage features 3D printable subway station icons for Tokyo's transit systems designed by jdan.
- It includes detailed listings for JR East, Tokyo Metro, and Yurikamome lines with line codes, colors, and station numbers.
- The models are provided for personal use under a Creative Commons NonCommercial license and are unofficial, with no affiliation to transit operators.
Autonomous flying umbrella follows and shields users from rain and sunlight
a month ago
- Most structural parts were 3D printed.
- The studio extends a two-decade investigation into manufacturing with living systems, from bacterial pigments to biodegradable footwear.
- Researchers at Yonsei University and international collaborators developed a floating device that converts movement into energy for water testing and microbial disinfection.
- Lovefrom designed an EV with clean, sweeping volumes, free from traditional front-mid engine and rear gearbox constraints.
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Common 3D Benchy Problems, Causes and Fixes
a month ago
- The 3D Benchy is a popular test print for FDM 3D printers, designed to evaluate performance without supports, using features like curved surfaces and overhangs.
- Common defects include stringing (caused by poor retraction or high temperature), over-extrusion (from incorrect flow or E-steps), and under-extrusion (due to clogs or low temperature).
- Other issues are warping (from poor bed adhesion), layer shifting (loose belts or high speed), poor bridging (insufficient cooling), and overhang problems (slow cooling or fast printing).
- Additional defects are Z-banding (Z-axis inconsistencies), ghosting (vibration), top layer gaps (few top layers or under-extrusion), elephant’s foot (hot bed or nozzle too close), dimensional inaccuracy (incorrect steps or shrinkage), and surface roughness (wet filament or extrusion issues).
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Mesh Welding and Repair for 3D Printing
a month ago
- Mesh Welding Repair helps prepare 3D models for slicing by welding overlapping wires to strengthen connections and improve stability.
- It repairs broken or incomplete meshes that slicers may reject, ensuring surfaces are properly connected before printing.
- The tool is part of Beaver Tools, a collection of Mac utilities available on the Mac App Store, each solving specific problems.
3D Printing a Brain (2021)
a month ago
- The project involved creating a 3D-printed brain trophy from an MRI scan in 2021.
- The process included converting DICOM to a mesh, cleaning in Blender, printing halves on an SLA printer, casting silicone molds, pouring pewter, and assembling with epoxy.
- A custom base was made using a router and chamfer bits, with a 3D-printed plaque.
- Key learnings included medical file types, new manufacturing techniques, and achieving a polished final result.

3d printing

Bambu Lab is abusing the open source social contract

Tuning in FM Radio on a 3D Printer Heatbed

Print a Stencil – SVG to 3D Printing PCB solder paste stencil

Stenchill: 3D Printable Solder Paste Stencil Generator

Show HN: Jdan's Japan subway station icons

Autonomous flying umbrella follows and shields users from rain and sunlight

Common 3D Benchy Problems, Causes and Fixes

Mesh Welding and Repair for 3D Printing

3D Printing a Brain (2021)