Any way to produce a 100% same plastic lampshell without injection mold?

• Jun 29, 2023

• #2

3DDave

Aerospace

May 23, 2013

11,474

US

Everything but size and the sort of testing that is expected.

Is that a flange on the inside? I do not expect an injection mold to make that.

 

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• Jun 29, 2023

• #3

IRstuff

Aerospace

Jun 3, 2002

44,895

US

Another way is brute-force CNC cutting from a solid billet.

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• Jun 29, 2023

• #4

Pud

Mechanical

Mar 26, 2003

2,713

GB

Vacuum cast in PU or acrylic. Rapid prototype outfits do it. More expensive than printing due having to make moulds, but final product is same as production.
You need acrylic for UV, PC for impact.

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• Jul 6, 2023

• Thread starter
• #5

clyde Verse

Automotive

Jun 29, 2023

3

US

I tried. This shell is oapl translucent. The light transmission of the 3D printed model was not uniform enough and turned yellow.

 

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• Jul 6, 2023

• #6

Pud

Mechanical

Mar 26, 2003

2,713

GB

You really need to remove the inside flange. It's not manufacturable. (Even by vacuum casting PU off silicone tooling).

Politicians like to panic, they need activity. It is their substitute for achievement.

 

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