As plastic fills the mold, air trapped inside the cavity must escape. Inadequate venting causes "burn marks" (dieseling) because compressed air heats up drastically and scorches the plastic.
Aris remembered his part: a simple clip. He had used a single edge gate. That was fine for strength, but the flow front split and recombined around the boss, creating a weak weld line. That’s where it snapped. He needed to move the gate or add a small overflow well to trap the cold, recombined plastic.
POOR COOLING: OPTIMAL COOLING: Channels too far / unbalanced Conformed / Uniform Distance O O O O O O ___________________________ ___________________________ | _______________________ | | _______________________ | | | | | | | | | Circuit Geometric Layout
Flight of Canada Geese on the Internet Archive
My Music Maker toy keyboard (wav, soundfont,
sfz, Kontakt 3), details and photo in file: MyMusic Maker
No Name toy keyboard (wav, soundfont, Kontakt 3),
details and photo in file: No Name Keyboard
LoFi Kalimba (wav, soundfont, Native Instruments Battery 3/
Kontakt 3, NuSofting DK+): LoFi Kalimba
Smallest electronic keyboard (wav, soundfont, Kontakt 3), details and photo in file: Smallest Keyboard
NanoStudio 2 version, watch the demo video:
As plastic fills the mold, air trapped inside the cavity must escape. Inadequate venting causes "burn marks" (dieseling) because compressed air heats up drastically and scorches the plastic.
Aris remembered his part: a simple clip. He had used a single edge gate. That was fine for strength, but the flow front split and recombined around the boss, creating a weak weld line. That’s where it snapped. He needed to move the gate or add a small overflow well to trap the cold, recombined plastic.
POOR COOLING: OPTIMAL COOLING: Channels too far / unbalanced Conformed / Uniform Distance O O O O O O ___________________________ ___________________________ | _______________________ | | _______________________ | | | | | | | | | Circuit Geometric Layout