Hyperbolic Paraboloid – Foundation Paper Pieced (FPP) Pattern

Here is the Foundation Paper Piecing (FPP) Pattern for my Hyperbolic Paraboloid Quilt. I have included two sizes:
– original 24″ block makes a 26″ x 26″ quilt with a 1″ border*, and
– small 12″ block makes a 13″ x 13″ mini-quilt with a 1/2″ border.

Tape the pattern sheets together to assemble the pattern (12 sheets for the 24″ pattern, 4 sheets for the 12″ pattern). The FPP pattern is ready to use, ie. it is a mirror image of the diagram above. All seams are straight – the illusion produces a curve.

This pattern assumes Foundation Paper Piecing knowledge. The photos below are not a complete tutorial, they highlight various tips and information about how I sewed the block.

I made my 12″ sample block using regular FPP method which worked very well. However after it was sewn together I was concerned about the bulk along the A/B seam. Subsequently, I also tested the Freezer Paper Method – no tearing away of paper and I can press the seams open.

For the Freezer Paper Method, after you print the pattern and tape it together, copy the pattern pieces onto freezer paper. For me the main advantage of using the Freezer Paper Method is that after you sew a seam you can release the freezer paper next to the seam and re-iron that seam open. This significantly reduces the bulk between sections “A” and “B”. Check throughout the sewing process that the fabric is well attached to the freezer paper – you do not want the fabric to shift and create puckered or distorted units.

12″ FPP Block

FPP and large pieces of fabric – Working with FPP and a large piece of fabric may be a challenge. My suggestion is to machine tack (use the longest stitch length on your sewing machine) the large A1 and B1 pieces of fabric to the paper foundation. If you are using the Freezer Paper Method, iron the fabric onto the pattern, make sure it is flat with no distortion, creases or puckers.

Section C1 – I used C1 as a template, cutting out the fabric and sewing this section without the paper.

Sewing sections together, seam directions – I pressed the A/B seam towards section “A”, and the AB/C seam towards section “C”. If using the Freezer Paper Method, press all seams open. But it’s your quilt – so press in the direction that works best for you.

Press well and often! Pressing is very important to ensure all the fabric lays as flat as possible.


*Finished size 26″ x 26″
Borders: Cut (2) 1.5″ x 24.5″ strips, and (2) 1.5″ x 26.5″ strips

*Unfortunately, a couple of deadlines are fast approaching so no time for me to test the large pattern – apologies for that. I think you can use FPP or Freezer Paper FPP for the 24″ block.


Finished size 13″ x 13″
Borders: Cut (2) 1″ x 12.5″ strips, and (2) 1″ x 13.5″ strips



Happy to answer your questions, leave a comment below and I will get right on it.

(Copyright Diana Vandeyar. For personal use only)

Virtual Quilt Coat

Want to know how your quilt would look as a coat? I made a “quick and dirty” mock-up template and enjoyed myself so much, I wanted to share it with you.

Click on the Download button “Quilt Coat Mock-up” PNG file below, then right-click and “Save as…” to your computer. Open the file with your image and photo editing program (it needs to have Layer capabilities, for example Photoshop or Paint.net as a free alternative).

Import or Paste a photo of your quilt into a new Layer below the template. You may need to play with the scale and rotation to get the right effect. You may also need to duplicate (copy and paste) your quilt within the layer to cover the template windows.

Add different quilt photos in separate layers below the template within the same document. Turning “off” and “on” the Layers to see the different mock-ups.

Have fun!

... Diana

(Copyright Diana Vandeyar. For personal use only)

Moka Quilt Block – Foundation Paper Piecing Pattern

Block Size: 8″ x 10″

Thank you for the interest you have shown in the Moka block, it’s a favorite of mine too!

I made this block in 2013, slightly smaller than the original drafted pattern (7 1/2″ x 9 1/2″ … I don’t know why) and off center (to accommodate some words), which I did not like for this re-design (the off centre part, not the words, lol). And I prefer the handle on the right. So the new design is now centered which make me happy. But I have not tested the pattern included here – so I hope it’s OK (please let me know if there are any problems).

The paper pattern is already reversed so it’s good to go for a block with the handle on the right, like the pics above. I’m not including instructions because I’m sure you all know what to do 🙂 and there are lots of Foundation Paper Piecing tutorials out there.

Would love to see your blocks. If you post on Instagram, please tag me so I can see your work! #mokaquiltblock

… Diana

(Copyright Diana Vandeyar. For personal use only)