Alec Singh – Digital Fabrication & Computational Design

Recent posts

Testing some new filament for architecture models:

Testing some new filament for architecture models: PLA with some mineral additives.

One nice thing about this material composite is that it eliminates that shiny „plastic look“ of regular PLA prints. It also has a nice haptic feel to it, rough like stone or gypsum. That makes post-processing a bit easier, without being too fragile at the same time.

For this print of „Elphi“ I used @formfutura Stonefil Concrete (PLA filled with 50% of powdered stone). Printed on the Prusa MK3S with a 0.4 mm nozzle.
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#3dprinters
#3dprinting
#3dprinter
#3dprint
#3dprinted
#3dprints
#additivemanufacturing

#prusa
#prusai3mk3s
#maker
#digitalfabrication
#manufacturing
#rhino3d
#3dmodelling
#3dmodeling
#3dmodel
#formfutura

#hamburg
#elbphilharmonie
#elbphilharmoniehamburg
#elphi
#herzogdemeuron
#architecture
#architecturelovers
#archilovers
#architecturedesign

Temporary light sculpture on the Rhine Tower. A

Temporary light sculpture on the Rhine Tower.

A shout-out from @metro_deutschland to all self-employed people in the crisis and a neat little exercise in night photography.

Only some adjustments in RAW, no PS, no filter.

[40 mm, F/4, 1/4 sec., ISO 3200]
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#nofilter
#photography
#nightphotography
#nightimages
#nightshooters
#nightphoto
#lighttrails
#nightscapes
#cityscapes
#urbanexplorer
#architecture
#lasershow
#düsseldorf
#dusseldorf
#medienhafendüsseldorf
#rheinturm
#rhein
#tower
#telekom
#rheinland
#nordrheinwestfalen
#northrhinewestphalia
#canon
#canonphotography
#canondeutschland
#canoneosrp
#canonphoto

My contribution to the @polymaker_3d hook tourname

My contribution to the @polymaker_3d hook tournament

Some weeks ago Polymaker announced a tournament to design the strongest hook made of their PolyMax PLA filament.

After seeing some of the other competitors I feel my approach is very conservative, but I'm still confident. The simulation in Fusion360 is absolutely not accurate (dynamics, imperfections of the manufacturing process, ...). The total tensile force in the attached picture is around 5 kN (~500 kg), which ist probably in the ball park. The spots of maximum stress are those compressed by the metal hooks, which seem to be the limiting factor in general. Still curious to build a small test setup and get the real numbers...

Some specs:
- layer height: 0.3 mm
- extrusion width: 1.0 mm
- no infill / contours only (= 100%)
- printing temperature: 230°C
- material flow: 110%
- weight: ~46 g

Printed on the Prusa MK3S.
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#3dprinters
#3dprinting
#3dprinter
#3dprint
#3dprinted
#3dprints
#additivemanufacturing

#prusa
#prusai3mk3s
#maker
#digitalfabrication
#engineer
#engineering
#mechanicalengineering
#structuralengineering
#manufacturing
#rhino3d
#3dmodelling
#3dmodeling
#3dmodel
#fea
#fem
#mechanicalparts
#polymaker
#fusion360
#hook
#carabiner

Exploded view of the 4th axis prototype for the St

Exploded view of the 4th axis prototype for the Stepcraft.D840

Still work in progress, but I'm very confident that this is going to work. It's basically an additional 4th rotation axis for the Stepcraft D series. There is also an original one from Stepcraft, but I need something bigger to hold down and rotate wooden beams.

Therefore the rotary table has a large ball bearing (6015 ZZ, inner diameter is approx. 75 mm) which can fit customized inserts for different cross-sections. The whole casing is going to be 3dprinted in PETG. The assembly weighs about 1.4 kg, the gear ratio is 1:8 (20:160).

Rendered in Blender3D/Cycles.
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#3dprinting

#3dprint
#3dprinted
#3dprints
#additivemanufacturing

#digitalfabrication

#stepcraft
#stepcraftcnc
#cnc
#cncmachining

#engineer
#engineering
#mechanicalengineering

#industrialdesign

#rhino3d
#3dmodelling
#3dmodeling
#3dmodel
#rendering
#rendering3d

#blender3d
#blender
#blenderrender
#blendercycles
#cycles
#cyclesrender
#explodedview
#technicaldrawing

#axonometric
#isometric

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