where to find perforated metal sheets?

[Fungi]

I'm having a lot of trouble finding some affordable thin metal perforated sheets. I'm looking for round, diamond, or hexagonal openings in aluminum, brass, copper, or even plastic. As far as scale, I guess, think 1:10th semi exhaust pipe. I found some really interesting things at mcmaster carr but I don't want to spend $109 for a minimum 12" x 24" of it. I read there are dish washer filters with this material but I have not found any repair places that had any junked machines to salvage them from. Any ideas? Photo etch is so expensive and small... I try to use only salvaged, found, or junk parts for my robot builds. Thanks!

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[urumomo]

Did you look on Amazon ?
https://www.amazon.com/s?k=perforat...rated+meta,aps,174&ref=nb_sb_ss_ts-doa-p_2_15

 

[Fungi]

The dish washer thingy.

 

[Fungi]

Did you look on Amazon ?
https://www.amazon.com/s?k=perforated+metal+sheets&crid=3CIGBX4EZX2DV&sprefix=perforated+meta,aps,174&ref=nb_sb_ss_ts-doa-p_2_15

yeah, that stuff is all really big...

 

[urumomo]

smaller than that dishwasher stuff .
1 and 1.5 mm
how small do you need ?

 

[urumomo]

https://www.amazon.com/PATIKIL-Stai...rated+meta,aps,174&sr=8-80&xpid=sywy4K10cAruE

 

[urumomo]

Is 3X6 mm aperture too big ?

https://www.amazon.com/AggAuto-Univ...=d2lkZ2V0TmFtZT1zcF9zZWFyY2hfdGhlbWF0aWM&th=1

 

[BarleyBop]

I don't know how many hours I've wasted on Amazon looking for things when I don't know the exact search term that will bring me success... Wouldn't it be great if they put AI to good use so it could find things according to your description of intended purpose?

 

[urumomo]

It would be even more helpful if the OP engaged in the convo to assist in the search

 

[BarleyBop]

Touché!
How about 'micro mesh', or 'speaker mesh'? Found some self adhesive mesh for cell phones... probably pieces way too small for robot, but possibly useful for 1:35.
https://www.amazon.ca/dp/B0BLNRD4CP...K0V5ZG42159TKJNVE&starsLeft=1&skipTwisterOG=1

 

[urumomo]

Laser and 3d printer beds might be an option .
Don't know how small of an aperture is available .

 

[urumomo]

groovy ,
probably 7/8" diameter circles
but still groovy

https://www.amazon.com/M-D-Building...&sprefix=,aps,151&sr=8-101&xpid=JV6joiiF9VmWR

 

[BarleyBop]

3D printing... in my city, it is free, just pay for materials at the public library... they also have laser cutters you can reserve!

 

[Jakko]

Aber sells photoetched sheets with different sizes of holes, as well as "nets".

 

[BarleyBop]

... like a well stocked beer fridge... you never know when some will come in handy!
And always nice to have variety!