Build. Watch.
Try something new.
LEGO builds, 3D printing Shorts, science projects and AI art from Harlan Cru on YouTube.
Video links open YouTube in a new tab. The printing collection also has silent videos you can play here.
Motorized LEGO race car
A father-and-son LEGO race car build. Look for the motor and how the wheels connect.
Watch on YouTube Video / LEGO + model buildsBuilding Wall-E with Dad
The channel’s first video introduces a Wall-E build. What details make the robot recognizable?
Watch on YouTube3D printing Shorts
See moving parts, growing layers and a digital color preview.
Toy prints in motion
Watch articulated toy prints move.
Watch on YouTube Short / 3D printing ShortsLayer-by-layer timelapses
Watch shapes grow on the printer bed.
Watch on YouTube Short / 3D printing ShortsVampire skull color preview
A digital model and color preview.
Watch on YouTubeThese channel clips show family printing and design work. Model-designer credits stay with the originals. Harlan’s own numbered Tinkercad designs are in 3D Prints.
Play the silent printing videos hereCrunchLabs + experiments
The Big Top strobe-light project and its follow-up.
Sketches + AI art
Art experiments from the channel, with AI help clearly credited.
Bob the Blob
An AI art creation from the channel.
Watch on YouTube Short / Sketches + AI artFluffy McFluffings: Air Head
AI art with Dad’s help, as credited in the original title.
Watch on YouTube Short / Sketches + AI artSprinkles the Kitten
From a sketch to AI art: a kitten in an ice cream cone.
Watch on YouTube Short / Sketches + AI artAxl the Axolotl
A father-and-son AI art journey.
Watch on YouTubeThese are AI-assisted art experiments. They are not part of the original Tinkercad design collection.
Explore the AI Lab