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Need a custom part?
Describe it in plain English and get a printable 3D model in seconds.
It happens to everyone: you have a long print (e.g., 20 hours) and three partially used spools of the same color. Slicers tell you the print needs 450g of filament. Do you have enough on that half-empty roll?
By weighing the spool and subtracting the empty spool's weight, you get the exact weight of the plastic remaining.
Our database uses community-averaged weights. Manufacturers often change spool designs (e.g., switching from plastic to cardboard), which changes the weight significantly.
GrandpaCAD turns a text prompt into a ready-to-print 3D model. Functional parts, organic shapes, multi-color prints. No CAD skills needed.
"Phone stand with cable slot, 70mm wide, 15 degree angle"
