Crocheted Gyroid

Tell us the story of your project: 

One day I decided I wanted a crocheted gyroid.  I attempted to make it, failed, and set the pieces aside.  Years later, I had more experience and I came back to the project.  I figured out a much better way to make it, and after quite a bit of work and fussing with it, I completed it!  

 

How-to: 

Would you like to make your very own crocheted geometrical gyroid?  I figured out how to make one!  See this this Crocheted Gyroid YouTube video for the completed object in motion, and this Spinning gyroid model - low poly-count YouTube video for a spinning more precise version. Here are the instructions (this project is a little tricky and rather long).  

You will need:

Cotton yarn:  I used Sugar & Cream, you could also use Peaches & Cream.  This probably wouldn't work with a stretchy or fluffy yarn, because most of how it works is through slightly stiff pieces that don't lay flat -- they're sort of like potato chips.  You probably want 8 colors for your first one to make it easier to understand what is going on (I used red, orange, yellow, green, blue, purple, white, black).   It would look good in 1, 2, 4, or 8 colors.  

Crochet thread:  I forget what gauge, but just a nice heavy crochet thread (not sewing thread) would work.  White is easy to see while you're assembling it, and it is visually fine in the final object.  

Yarn needle:  for weaving in the ends.  Metal is better because you'll be forcing it into tight stitches.  

Hooks:  I used a G / 6mm hook for the pieces and a smaller hook (sorry, I forget the size) for stitching everything together.  You'll need hooks with good grips on them because the crocheting is intentionally pretty tight / stiff.  I bought separate grips that I slid onto the hooks.  

Make a slip knot with the short tail being the loose / slipping end (this is the opposite of the way I usually make the slip knot for starting crochet).  

Wrap the long end of the yarn around the hook, put the hook into the front of the big loop, wrap again, bring the hook forward out of the loop, wrap a third time, and pull through the other two loops.  This should make a single-crochet stitch on the big loop.  

Make five more single-crochets on the big loop, for a total of six.  

Pull the loose end tight, and you should get this little almost-circle.  

Make sure you're holding the long end now, and slip-stitch with the first single-crochet.  Now you have a hexagon.  

Chain stitch, then in the loop after the slip loop:
* double crochet twice
* single crochet once

In each of the next 5 loops:
* single crochet once
* double crochet twice
* single crochet once

Slip stitch with the first stitch in this round.  The middle will start to open up at this point, and if you want to make sure everything is still fine, you can tug on the loose end to snug it up again.  This will make the piece warp into a not-flat shape, and that is the whole point of this design.  

One chain stitch.  Repeat six times, except the last time don't do the third single-crochet:  
* single-crochet in corner loop
* double-crochet in corner loop
* chain stitch
* double-crochet in corner loop
* single-crochet in corner loop
* single-crochet in three edge loops

Slip-stitch with first stitch in this round.  

Pull the loop long, cut it in the middle, and pull out the long detached string.  

Use a yarn needle to carefully loop through the next stitch, closing the edge of the piece neatly.  

Use the yarn needle to thread the tail through a bunch of random stitches.  Cut the yarn close.  

Thread the middle tail into the yarn needle.  

Pull on the center string to tighten it up.  Use the needle to go around the center two full times, to make sure it stays tight.  Cut the yarn close.  

This is one unit.  It does not lie flat at all, and that is intentional.  You should be able to put two edges flat on the table, two edges kind of vertical, and two edges horizontal in the air.  This is the configuration it will have when it is in the final piece.  

Now decide how big your gyroid is going to be.  It will be a cube, and the number of pieces will be the cube of the width.  So if you want to make your gyroid 4 pieces wide, it will be a total of 64 pieces (like the one I made).  It is simpler to pick an even width like 2 or 4, because then you can make the same number of pieces of each color.  

Make a slipknot with the crochet thread, making the long end the slipping end.  Put the small crochet hook through the near corner of one of your hexagons (like the left-hand piece at the bottom of this image).  Pick up the loop and pull it through.  Put your crochet hook through the lower corner of the right-hand piece like at the bottom of this picture.  Pick up a loop and pull it through both the colored piece and the loop on your hook.  Go back to the next stitch on the left hand side and repeat, going through the hole, picking up a thread loop, and pulling it through both the hole and the other loop on your hook.  Repeat all the way through these two pieces, and you should end on the right piece.  

Then get the next piece and continue in one long thread.  If you want a consistent color pattern, you should use four colors in this row in the pattern shown in the picture.  Continue until you have a strip that is two wide and as many long as the width of your cube.  Finish this line by doing a single chain stitch at the end, then pull the thread into a big loop and cutting it in the middle of the loop.  Thread the ends into a yarn needle and pass them through the zigzag area to weave them in (in my pictures, I waited until the cube was finished to do this step, and that was harder).  

Do the same thing with pieces of the other four colors.  

Fold the pieces over in alternating fashion like this, then line them up next to each other.  They are not connected to each other yet, they are just sitting next to each other.  

Make a another line just like the first one, and set it next to the other two.  

Now make four little pairs of the colors that you used in the second line.  These pairs are just like how you made the second line, but you tie off in between.  

On the bottom two rows, unfold the blue and green pieces.  Starting from the left and working to the right, stitch together the top black edge and the bottom purple edge (make sure you get the correct edges, you can see that they are the edges adjacent to the green and blue pieces), then the top yellow edge and bottom white edge (adjacent to orange and red edges), then again the black and purple, and then again the yellow and white.  

Flip the whole thing over (this will require lining up the little pieces at the edge again).  Rotate so the black corner is in the lower-left.  Flip the black pieces in the third column up, then start from the bottom and sew together pairs again.  This time the pairs are green-blue and orange-red.  

Flip back over, rotate to the original orientation.  Sew edges together again, this time in the top pair of rows.  

There are three directions to a cube:  left-right, front-back, and up-down.  We have worked on the left-right and front-back already, now we need to think about up-down.  The problem with this third direction is that we're not ready to do the full length yet, but if we wait to do it until the end, we won't be able to access it all.  So we have to start now.  We want to do the up-down direction in continuous threads, so here's our solution:  thread balls.  It has been too long since I made this and I don't remember how long the threads have to be, but I think 3 yards should be plenty for a 4x4x4 cube.  Make 9 little yarn balls like this, but cutting off 9 lengths of crochet thread and wrapping them in one direction and then wrapping around to keep them together.  At each intersection, you should be able to see pairs of edges aren't sewn together yet.  Each place will have two consecutive edges that aren't joined.  Some intersections will join red-purple and yellow-green, other intersections will join orange-black and white-blue.  

Attach orange and purple pieces to the yellow and blue pieces.  

Attach black and red pieces to green and white pieces, and attach another line of orange and purple.  

Continue the vertical threads up the corners.  Attach purple to red and black to orange.  

Continue the vertical threads up.  If you're making a 4x4x4 cube, this is the end of the verticals, so you can cut them short and finish the ends.  

Done!  If you haven't been weaving the ends in as you go, now is the time to do that.  

 

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Make your own soft infinite splitter of 3D space
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Sunday, June 30, 2019 - 16:13