Any experience on handemade acetate frames?

[Robert_S]

Hello everyone,

I forgot to post some results achieved with a laser I had the pleasure to work with for a few hours.
The first couple of hours I always got the same result, no matter which file I would feed the machine.
Then, all of a sudden I managed to fine-tune the laser power and speed with the following results.
Attachment 13668

Mmmhhh, I seem to be able to post only 1 image...

Anyway it is an encouraging starting point. :)


Then I met with a CNC router technician and we will soon begin to carry out the first tests.

I shall keep you updated.

Is that a clear acetate sheet?

And has the laser turned it kind of silver?

[ilciuchino]

Is that a clear acetate sheet?

And has the laser turned it kind of silver?

Hi Robert_S,

the one depicted in the two images I uploaded is a black board.
I guess it is just the reflection that made it seem clear or silver.

[Chris Ryser]

I am not a frame designer or engi-nerd, but to my recollection, most commercial acetate frames are made by injection molding. So you might be creating completely new manufacturing methods.

EDIT: This comment is completely wrong. Please see below.

Up to the early 50s all plastic frames used in the eyeglass industry were made from cellulose nitrate (celluloid) sheets. This material was highly flammable and got replaced after a while of trying out other materials.

The industry settled on acetate (in the mid 50s) sheets and has forever stayed with that material as the main raw material for good quality optical eyeglass frames.

Acetate sheets are colored during the manufacturing process and should be stored nearly a year before working with. The material has to cure properly before it should be worked on.

Some manufacturers can not wait to throw some new colors in frames on the market and used to material to early. It then is to soft and will not keep it adjustments and will scratch easyly.