
Clay Printing Tutorial
This tutorial involves using an inkjet printer to print onto a thin, baked sheet of polymer clay. This technique works best for an item that is going to have a flat finished surface.
Materials Needed:
- approximately 1/2 oz. white or light-colored polymer clay (I generally use Premo but I have also used Cernit) [NOTE: I used translucent clay for some of this example and blue clay for another. I would not necessarily use those colors for an actual project.]
- inkjet printer
- image file and image editing software
- clay-dedicated pasta machine
- two sheets of printer paper cut approximately to 5" x 8.5"
- scissors
- tape
- translucent liquid polymer clay
NOTE: This tutorial is not intended to explain how to use image editing software. The assumption is the reader knows how to resize and print images. Additionally, in my opinion you are taking some risk in feeding anything other than paper through your printer. (This is a risk I am willing to take because my printer isn't particularly expensive.) If you have an expensive printer, you may want to reconsider this technique. Also, some printers have a "straight" feed system where the paper feeds from the top and comes out the front or bottom. A straight feed is probably the least risky system for this technique. Other printers have a "U" feed system, where the paper feeds in from the front, goes through a roller system that turns the paper in a "U" and the paper exits to the same side it entered. This is perhaps the most risky feed system for the clay printing technique. That being said, I have been doing this technique on a "U" feed system for about a year and I've not yet (keeping my fingers crossed!) had a jam. I think the key is THIN THIN THIN sheets of polymer clay and no jagged edges. If you want REALLY thin sheets of polymer clay, use cardstock to make your sandwiches rather than regular printer paper.
Step 1: Printing a test image
Open your image file, size it to the desired dimensions and print a copy on regular printer paper. Try to have about a 1" margin at the top of the image.
Step 2: Conditon approximately 1/2 ounce of white (or light-colored) polymer clay.
(Note: Exactly how much polymer clay you will need depends on how large an image you want to print. I generally find that about 1/3 an ounce is enough to print a 3" x 4" image.)
- Roll the clay into a log that is about two inches long.
- Roll the polymer clay through the widest setting on the pasta machine.
- Rotate the clay a quarter turn and roll through the second widest setting on the pasta machine.
- Continue the previous step until you have rolled the clay through the thinnest setting on your pasta machine where the clay DOES NOT RIPPLE. I find Setting 5 on my Atlas machine works perfectly. You'll also want to ensure that the dimensions of your clay are somewhat similar to the dimensions of your image. If you have a rectangular image, roll a sheet of clay that is longer than it is wide, for example.
- Sandwich the sheet of polymer clay between the two sheets of printer paper. Place the clay at the bottom of the narrow ends of the paper.
- Select the next thinnest level on your pasta machine (setting 6 on my Atlas machine).
- Insert the end of the sandwich between the rollers and turn the crank just a tad to "lock-in" the sandwich. This will leave one hand free to turn the crank and the other hand free to guide the sandwich through the rollers.
- Slowly turn the crank and use your other hand to hold the clay perpendicular to the rollers and away from the paper so that as you crank it can go smoothly through the rollers. Also, pay attention to the sandwich as it emerges from the bottom of the rollers. Sometimes when the sandwich hits the bottom of the pasta machine, it doesn't "roll" nicely to the front or back--instead it "bends" and leaves a mark in the clay.
- Do NOT remove the paper from the sandwich!
- Place the entire sandwich in the clay oven. Since the clay is very thin, you'll only need to cook it for about ten minutes. Pay careful attention to temperature. It should be approximately 275 degrees Fahrenheit, or whatever temperature required for the brand of polymer clay you are using. Paper will not burn at the temperatures required to cure polymer clay.
- Once the clay is completely cooked, remove the paper from the thin sheet of clay while the paper is still warm. The paper should easily peel off the clay. My clay sheet is about 1/2mm thick.
- Trim the edges of the cooked sheet of clay so that there are no rough edges. This can be done with regular scissors. Test a piece of the trimming. You should be able to bend it in half without it breaking. It if breaks it's probably not properly cured. Cook it some more and make certain your oven is maintaining the necessary temperature level. You don't want brittle clay going through your printer!
- Place the thin sheet of clay over the image to ensure the clay is large enough for the image with about a 1/4" overlap on all edges. If it isn't either resize the image or repeat the entire process of sheeting and baking more clay.
- Tape the trimmed sheet of clay to the printed image from Step 1, centering the clay over the printed test image. There should be about a 1/8" to 1/4" overlap of clay over the printed image. Make certain the tape does NOT overlap the clay on a part where the image will be printing. Otherwise when you print the image, it will print on the tape and not the clay! I tend to only tape the top edge of the clay (the edge that will feed into the printer first). If you tape all four edges of the clay to the paper and there is a ripple or air gets trapped, it could cause a misfeed.
- Place the paper in the printer. Double and triple check that once you start the printing process, the paper will feed through properly and print on the clay.
- Print the image.
- Cross your fingers and hope the paper doesn't jam. (I'm sure this step is helpful! I've done this dozens of times and I've not yet had a jam!)
- Let the ink dry for about five minutes. Peel the tape from the clay (try not to touch the ink) and place the clay in the oven at about 200 degrees for five minutes to "set" the ink.
- Place a nickel-sized glob of translucent liquid polymer clay onto some scrap paper. Use the tip of your finger to lightly dab a thin, thin layer of translucent liquid clay over the entire printed image to protect it from scratches. Check it from different angles to make sure the entire surface is covered.
- Bake the printed image for about 10 minutes to cure the translucent liquid clay.
- Make something wonderful!
| Sandwich |
| Right after Rolling |
| Thin, Baked Sheet |
| Positioned & Taped |
| Printed Clay |