STL import fails on 5 and WIP

I’m printing some STL files on my BigBox v1.1 with no problem, but when I try to import one of them the import fails. I’ve imported ~15 other STL files from his project with no problem. The Rhino error is only “STL File Read Error”. I imported the STL file in SW 2016 Student Edition on my Win10 box with no problems, but that might be due to the author having exported this STL from SW.

Rhino versions: 5.2.4, 5.3 (5D177w) and also Win10, Version 5 SR13 64-bit
(5.13.60913.21340, 9/13/2016)

Host: 10.11.6 (15G1212)
Software information
Software versions
Rhinoceros version: 5.3 WIP (5D177w)
IronPython version: 5.1.2015.131
WIP expiration: February 17, 2017
Language: en-US (MacOS default)
macOS version: Version 10.11.6 (Build 15G1212)


Third party kernel extensions
com.3dconnexion.driver (10.4.2) D1FC94C5-936D-3185-BECD-5AEA40D01AEC
at.obdev.nke.LittleSnitch (4724) FA391ABD-2B7A-3629-9CD2-F85F7D8B5910
com.Cycling74.driver.Soundflower (1.6.7) 3579CD1C-ADE2-32EE-87C0-B8DD7E3A4CBB (6.0.5) 8C4C5339-F7AA-36E5-A052-3D2E7DC6DF16

Hardware information

Computer hardware
Hardware model: MacBookPro11,5
Processor: Intel Core i7-4870HQ CPU @ 2.50GHz
Memory: 16 GB
Architecture: Intel 64 bit

Video hardware
Graphics: AMD Radeon R9 M370X 2048 MB
Memory: 2048 MB
Screen size: 2560 x 1440
Displays: Thunderbolt Display (109dpi 1x)

USB devices
Apple Inc.: Apple Internal Keyboard / Trackpad
Broadcom Corp.: Bluetooth USB Host Controller
Asmedia: ASM107x
USB Storage: USB3.0 SATA Bridge
Google: Pixel
TOSHIBA: External USB 3.0
C-Media Electronics Inc.: USB Advanced Audio Device
microHAM: USB Interface III
Burr-Brown from TI : USB Audio CODEC
Apple Inc.: FaceTime HD Camera (Display)
Apple Inc.: Apple Thunderbolt Display
Apple Inc.: Display Audio

Bluetooth devices

OpenGL information

OpenGL software
OpenGL version: 2.1 ATI-1.42.15
Render version: 2.1
Shading language: 1.20
Maximum texture size: 16384 x 16384
Z-buffer depth: 24 bits
Maximum viewport size: 16384 x 16384

Implementation settings
Use texture compression: No

Appearance settings
Antialiasing: 4x
Mip map filtering: None
Anisotropic filtering: None

single_hotend.stl (32.0 KB)

Hm. As far as I can see this is an empty 3dm file incorrectly named as stl.


Ooops, hit “Save” on the STL by accident. I tried to import it again (from the distro) and have no problems, so move to “cannot reproduce”.