Alec Singh – Digital Fabrication & Computational Design

Recent posts

Mars and Moon conjunction Combined photo of Mars

Mars and Moon conjunction

Combined photo of Mars and Moon in conjunction. Spontaneous shots, kept post-processing to a minimum. Of course no details at this focal length, but at least Mars shows up in red. Also like the lens flare (J.J. Abrams heavy breathing).

_ Mars + environment (105 mm, F/5.6, 5 secs., ISO3200)
_ Moon (105 mm, F5.6, 1/2000 secs., ISO 800)
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#düsseldorf
#astronomy
#astrophotography

#mars
#moon
#marsmoon
#planets
#planetphoto
#planetphotography
#photography
#longexposure
#nightsky
#starrysky
#universe
#cosmos
#amateurastronomy
#amateurastrophotography
#astrophoto
#canon
#canonphotography
#canondeutschland
#canoneosrp

PSU Mount for Creality CR-10 www.thingiverse.com/

PSU Mount for Creality CR-10

www.thingiverse.com/thing:4588794

This PSU mount attaches directly to the 2020 extrusion profiles of the Creality CR-10. It holds the original PSU coming with the CR-10, if you want to convert the classic CR-10 into a boxless version (similar to the Ender 3). The mains voltage section of the PSU is seperated from the output voltages and contains no screws/screwholes.

IMPORTANT NOTICE:
THIS MOD IS ONLY RECOMMENDED FOR EXPERIENCED USERS! WORKING ON THE MAINS VOLTAGE SIDE OF THE POWER SUPPLY UNIT IS REQUIRED!

Parts needed:

- 5x M3x10 hex socket screw
- 5x M3 T-Slot nut for 2020 extrusion profiles
- 2x M3x6x5 threaded inserts (use of a soldering iron required)
- 2x original hex socket screw (mains supply socket)
- 3x original hex socket screw (PSU mounting screws)
- 1x original mains supply socket
- 1x original mains switch

PETG is recommended, as this is a critical mechanical part. Support is needed for the openings. Automatic support can be difficult to remove, you can use the second STL-file as support geometry.

Use a soldering iron (~200 °C) to press the threaded inserts into the back of the mount.

It is recommended to mount the holder first to the extrusion profiles in the back of the CR-10 (after inserting the PSU you can't reach the mounting screws anymore. If you have a second Z-Motor, be careful to route the wires first. Clear the screw holes with a drill.

Rendered with Cycles/Blender.
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#creality
#cr10
#3dprinters
#3dprinting
#3dprinter
#additivemanufacturing
#maker
#thingiverse
#stl
#2020
#powersupply
#powersupplyunit
#psu

#rhino3d
#3dmodeling
#3dmodelling
#3dmodel
#blender3d
#blender
#cycles
#cyclesrender
#parts
#3dprinterparts

"Die Fahrbahn ist ein graues Band Weisse Streifen,

"Die Fahrbahn ist ein graues Band
Weisse Streifen, grüner Rand [...]"

Home. Light trails at A46. Wondering how much time I've spent here driving...

[30 mm, F/36, 30 secs., ISO 200]
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#nofilter
#photography
#longexposure
#longexposurephotography
#nightphotography
#nightimages
#nightshooters
#nightphoto
#lighttrails
#road
#autobahn
#germanautobahn
#düsseldorf
#wuppertal
#a46
#rheinland
#nordrheinwestfalen
#northrhinewestphalia
#canon
#canonphotography
#canondeutschland
#canoneosrp
#canonphoto

A small mockup model for testing the scripted gene

A small mockup model for testing the scripted generation of nodes for a reciprocal framework. The nodes are 3d-printed and screwed to the wooden beams.

At this point the process is not fully automated, it involves manual intervention in Rhino3D and Grasshopper. The geometric derivation needs some further investigation.

In the long term it would be nice to get rid of the screws and have a more elegant way of assembly. Markings for the orientation are also needed.
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#parametricdesign
#parametric
#architecture
#rhino3d
#nexorade
#structuralengineering
#structuraldesign
#structure
#reciprocalframe
#reciprocalframework
#computationaldesign
#woodframe
#geometry
#digitalfabrication
#cncmilling
#wood
#woodworking
#modelmaking
#3dprinting
#3dprinter
#3dprinters
#additivemanufacturing

Delfoss - Sculpture by Karl Hartung Interactive v

Delfoss - Sculpture by Karl Hartung

Interactive view on Sketchfab: https://skfb.ly/6Usoo

This is a 3D-Scan (photogrammetry) from the sculpture "Delfoss" by Karl Hartung. It's located in Wuppertal near the Campus Haspel / University of Wuppertal and was revealed on 3rd June 1966. The scultpure is made from marble, ~3 m in height and weighs 8 tons.

The scan was made using 42 photos around the object and using the technique of photogrammetry (COLMAP and MeshLab). I tried doing this in MeshRoom, but it seems that the photos taken are lack in quality to process them properly.

The final mesh consist of ~1.300.000 vertices and ~3.000.000 triangles.

Due to copyright laws I cannot share the mesh, but you may use the link above to view it online at Sketchfab. For 3d-printing the mesh needs some cleanup, will cover that soon.

Animation rendered in Blender/Eevee, renderings in Blender/Cycles.
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#photogrammetry
#photogrammetry3dscanning
#3dscan
#3dscanning
#3dscanned
#3dscanner
#colmap
#meshlab
#wireframe
#blender3d
#blender
#cycles
#cyclesrender
#geometry
#digitalfabrication
#rendering
#3dprinting
#3dprinter
#3dprinters
#additivemanufacturing
#digitalart
#Wuppertal
#explorehaspel
#sculpture
#sculptureart
#sculptures
#karlhartung
#documenta

"Electric torch", a happy accident, as Bob Ross wo

"Electric torch", a happy accident, as Bob Ross would call it. Illuminated industrial chimney at the Landschaftspark Nord, Duisburg/Germany. No PS, just long exposure and shaky hands.
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#photography
#longexposure
#nikonphotography
#nikon
#nikond50
#night
#nightphotography
#nightimages
#neon
#industrialphotography
#industrynight
#duisburg
#ruhrpott
#lightpainting
#landschaftsparkduisburg

Diving into photogrammetry. Took 50 shots of this

Diving into photogrammetry. Took 50 shots of this little fella (unfortunately not Sonic the Hedgehog) from different perspectives and processed them in COLMAP and MeshLab (both OpenSource/free). An easy way to get access to 3d-scanning.

Compared to the effort the result is quite impressive. I didn't expect the complex surface of the fabric to be processed properly, but it turned out well. The final mesh consist of ~1.000.000 vertices and ~2.000.000 triangles. No further post processing done.

The mesh is almost ready for 3d-printing, it only needs to be closed on the bottom and the number of polygons should be reduced a little bit. It might actually be a good idea to automate the scanning process with a turntable.

Rendered in Blender/Cycles.
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#photogrammetry
#photogrammetry3dscanning
#3dscan
#3dscanning
#3dscanned
#3dscanner
#colmap
#meshlab
#wireframe
#blender3d
#blender
#cycles
#cyclesrender
#geometry
#digitalfabrication
#rendering
#3dprinting
#3dprinter
#3dprinters
#additivemanufacturing
#digitalart

C/2020 F3 (NEOWISE) Next iteration of comet phot

C/2020 F3 (NEOWISE)

Next iteration of comet photography (gear upgrade, Canon EOS RP):
_ wide shot (40 mm, F/5, 13 secs., ISO 1600)
_ close up (105 mm, F/5.6, 2.5 secs., ISO 12800, stack of 7 images)

Made some adjustments to curves & contrast in PS, no noise reduction.
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#düsseldorf
#astronomy
#astrophotography
#comet
#neowise
#c2020f3
#c2020f3neowise
#photography
#longexposure
#nightsky
#starrysky
#universe
#cosmos
#amateurastronomy
#amateurastrophotography
#astrophoto
#canon
#canonphotography
#canondeutschland
#canoneosrp

Voronoi coaster https://www.thingiverse.com/thin

Voronoi coaster

https://www.thingiverse.com/thing:4545744

A simple coaster (d~100mm) made from the notorious voronoi-pattern. The pattern helps with flexibilty, so cups or glasses won't wobble. Modelled as a demonstrator for flex-materials (Grasshopper/Rhino).

Flex-materials work best. Bear in mind that using this with hot cups may leave an imprint.

Rendered in Blender/Cycles.
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#3dprinters
#3dprinting
#3dprinter
#additivemanufacturing
#maker
#thingiverse
#stl
#blender3d
#blender
#cycles
#cyclesrender
#geometry
#pattern
#structure
#rhino3d
#digitalfabrication
#voronoi
#math
#mathematics
#parametricdesign
#parametric
#rendering
#flexiblefilament

#materials
#metamaterials
#tpu
#tpe

C/2020 F3 (NEOWISE) Ok, this was just a quick'n d

C/2020 F3 (NEOWISE)

Ok, this was just a quick'n dirty shot from the hip through the window of my bedroom (with my old Nikon D50, 20 secs., F/5.6, 50 mm). There's still a lot potential for improvement...
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#astronomy
#astrophotography
#comet
#neowise
#c2020f3
#c2020f3neowise
#photography
#nikonphotography
#nikon
#longexposure
#nightsky
#starrysky
#universe
#cosmos
#amateurastronomy
#amateurastrophotography
#astrophoto
#nikondeutschland