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Topic: Projecting Pattern onto a table to be cut
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Joined: Oct 29, 2015
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Hello to all!! I am new to the forum and have a question that I hope someone can help me out with.

For my business I cut many different types of patterns out of say 5 different types of materials. I currently have about 1,000 cardboard patterns I use to trace the shape on to the material and then use a type of hand saw to cut the pattern out.

What I would like to do is use a projector mounted above my cutting table that would project a PDF document (from a computer connected to the projector) onto the material on the table. The PDF document would contain CAD drawings of my patterns, therefore eliminating the need for me to have the cardboard patterns and have to trace the images onto the material each day.

I know this can be done because I have seen it before, but my biggest question is what type of projector should I look for? How do I setup the projector to project the image on the material at the correct size?

General specs of the area this will be setup in:

Projector can be mounted 10' to 20' above the cutting table
Cutting table idea would be L=120" W=60"
Ambient light should not be a huge issue.
Projector will only need to project in Black & White

Any questions or if you need more details feel free to ask!!

Thanks for you help!
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Joined: Mar 28, 2005
Posts: 13,005
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I would probably look at a projector like the LG PF1500U which produces a reasonable image using a LED solid state lamp engine. This means you can use it all day for years without having to replace a lamp, and it should be mountable in any direction without causing issues.

Brightness could be a factor, but not so much.

For size, I would cover the entire 120" width, then using a computer connected to the projector, you can adjust the size of the pattern just as you need it. You would never touch the projector, just the PDF documents, which should offer plenty of 'size' flexibility.
AV Integrated - Theater, whole house audio, and technology consultation during the build and installation process in the Washington, DC metropolitan area.