Instructables

Screen Print Shop Part 1: ShopBot Silk Screen Printing Frames

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Picture of Screen Print Shop Part 1: ShopBot Silk Screen Printing Frames
silkscreen frames crv.png
I'm setting up a screen printing studio and one of the things needed in quantity are screen printing frames. I could cut up wood and assemble them into frames but that would be time consuming and expensive. If you have access to a ShopBot or similar CNC router table you can make a large quantity of frames quickly and cheaply. I will assume in this instructable that you know how to use all of the equipment already.

Tools:
ShopBot with a 4'x8' bed or larger and associated tooling
Cordless drill and wood screws (for hold downs)
Table Saw (with adjustable guard), router (with adjustable guard), or ShopBot end mill that can cut 1/8" groove

Materials:
4'x8' sheet of plywood, preferrably high quality with good dimensional stability, 3/4" to 1.5" thick

If you're wondering why I have a ShopBot and other fun tools but am making my own frames its because I made it at TechShop where I have access to all these tools (techshop.ws).
 
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Step 1: Make your file

Picture of Make your file
The first step is to lay out your frames in your CNC software of choice. 2" thick frames are a good size of strength. I went with square frames, starting with 24"x24" squares and nesting squares 4" smaller than the previous one.

If you wish, you may download and use my file: https://docs.google.com/open?id=0B6tM1GvaYXt3SUlLTWV4TEI4cjA

In my picture:
The rounds are drill holes to use as hold downs.
The lines highlighted in pink are the spline grooves, these are optional and I recommend only using these if you have a router bit that will cut a perfectly sized groove for your spline. Something between 0.125 - 0.19 " (you can get a variety of splines to fit groves in that range from the local hardware store). 
The black squares are the frames. By nesting frames you can cut a large amount out of a single sheet of plywood. In this case there are 6 20"x20", 6 16"x16", 9 12"x12", 9 8"x8", and 9 4"x4" frames.

If the plywood is warped at all the frames will pop up when they get cut out and can potentially damage the ShopBot. You may want to liberally add screws, or, in my case, use lots of tabs.
notingkool1 year ago
Cool Instructable. I'm making my own printing shop now. I'd like to know if the organza works well. Can you strecht it tight? it wears out?
Marstole2 years ago
Looks crazy :0