FEELER: Laser Cut 1 3/4" inch dia acrylic FS mirror circles

[bobhaha]

just found out that 10g of each chemicals are approx $30 all up.. but that should cover an area of around the size of a dinner plate... then the glass would be an expense on top of that.. i guess if i cut the glass to the size of a coin or small circle i could get my money back.. not in it for a profit, more the experience! im going to try it.. maybe after my exams!

i have also found a way to use a RS mirror to make a FS mirror LOL.. where did you get that FS acrylic mirror from TJ??

 

[Jaseth]

A cool way of making FS mirrors is painting a piece of glass with liquid gallium
It is pretty difficult to get the surface completely regular and flat, but when it works it works well. Another problem is that at any point where the mirror is above the melting temperature (I think it was 28.5 degrees C), you can accidentally wipe off the gallium.
It is however very cheap.. 1g of gallium costs about $3 and could coat 20 smallish mirrors or more.

Seb

 

[Tech_Junkie]

Plastic Rods and Tubes at American Acrylics

I got an email the other day, and they dropped it another $0.10. Still a rip off though. $30 for plastic RS mirrors? I've found glass RS mirrors for way cheaper.

So how do you make RS to FS?

 

[lasersbee]

You need to dissolve the protective coating that protects the mirrored
surface on the rear of the mirror... IIRC


Jerry

 

[Tech_Junkie]

Why not just get a clean piece of glass to start with? LOL

 

[lasersbee]

Because with that process you just remove the protective coating
but not the reflective mirror surface...

Jerry

 

[bobhaha]

Yes thats right, lasersbee!! hmm still maybe worth a try.. i can go the the local store and see if i can get some to try out!