Rebecca Gieseking

Test folds: Square tubes with octagon twists

Continuing from my recent post, I’m exploring test-folds of geometric distortions to square tubes instead of the cylinders I’ve usually worked with. These two designs are very closely related to some designs I explored about 10 years ago and used in a diagonal shift vase about 5 years ago. These test-folds are actually based on pleats, not twists. The pleats can be trickier to work with because they don’t naturally hold themselves locked in place after you fold them, and they can tend to collapse partway but not all the way. For the first test-fold where the square tubes are aligned, either a pleat or a twist would work and give a very similar result.

The distances between the central convergence point and the tube work out such that the points on each flat face fall on a parabola. That’s less obvious here than for some of my previous examples where I had a 16-sided twist in a square tube.

Square tube with an octagonal twist - parallel
Square tube with an octagonal twist – parallel

The second test fold, with the square tubes rotated 45 degrees, only works with pleats. I attempted a version using a twist, and the paper lengths just don’t work – there are certain point pairs than need to be farther apart in 3D space than the length of the paper connecting them, which doesn’t work. But the pleated version works just fine. The rotated version is also fairly unstable because the top and bottom tubes are only really connected at the central convergence point and don’t rest on top of each other anywhere else. So as is, this wouldn’t work well in a vase because the top half would tend to tilt off to one side over time.

I’ll have more explorations that go into newer territory soon.

Square tube with an octagonal twist - rotated
Square tube with an octagonal twist – rotated

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Test fold: Twisted cubes

This test-fold is essentially a recreation of one from 2015, re-learning how I folded the shape. From the original post:

Creating the twist is actually fairly straightforward – I would be surprised if it’s not a re-invention of someone else’s idea. I used the same angle between each box here, but any angle from 0 to 90 degrees would work with very minor changes to the crease pattern. It could also work for shapes with more sides, not just squares. Collapsing the stack of twists is a bit tricky and uses a lot of paper, so I’m not sure I would want to try a stack too much taller than this.

With a few more years of practice, I re-created the same basic design with cubes stacked at 45 degree angles, giving it a nice symmetry. I’m starting to post a series of test folds exploring variations of twists on square tubes and other simple geometric forms instead of the more cylindrical forms I’ve usually folded, so this made a nice, simple entry point to thinking in those directions.

Twisted cubes

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New work: Bark lacy vase

This is the last piece in a mini-series I folded a couple years ago, playing with complementary painted and lacy patterns. The last piece was light and whimsical, but this piece shifts to solidity and structure. The painted surface and the lace pattern are modeled after the texture of tree bark, with irregular cutouts to suggest the crackling of the bark. The overall form of the vase is intentionally more substantial and weighty like a tree trunk, with more lace higher up suggesting more openness as in the upper parts of a tree.

Since I’m caught up now on older pieces, I’ll be posting about newer work soon!

Bark lacy vase
Bark lacy vase
Bark painted pattern
Bark painted pattern

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New work: Bubble lacy vase

This piece continues my exploration of lacy vases, shifting the visual language to circles. The overlapping circles in the painted design are reminiscent of the circles that bubbles leave behind on a surface and have a more playful feel than a lot of my work. All of the circles, in both the lace and the painted pattern, were hand-drawn free-form, so there are small inconsistencies and imperfections. Similar to the Sunburst lacy vase, the shape of the vase also echoes the round shapes in the painted and lacy textures. The shape is also a play on shapes common in scientific glassware, playing off of my multiple interests in art and science.

I’ll have one more piece in this mini-series to post soon.

Bubble lacy vase
Bubble lacy vase

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New work: Sunburst lacy vase

This piece is a continuation of my lacy vase series, continuing the theme of creating complementing paint and lace patterns. Unlike the last form based on waves and curves, this piece is based on a sharper, more angular geometry. As the vase widens in the middle, a painted pattern of bright angular brushstrokes emerges from underneath the black lacy panels. The lace cutouts, the painted pattern, and the overall shape of the vase all reflect similar angularity. However, similar to my previous piece, the painted pattern gives a softer version of the same visual language as the lace does.

I’ll be continuing to explore similar themes in my next two posts.

Sunburst lacy vase
Sunburst lacy vase

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New work: Wavy lacy vase

I’m catching up on posting some pieces from several years ago that I never posted when I folded them. This piece is a continuation of my lacy vase series, continuing to play with the contrast between a black lacy pattern and a contrasting painted section. The new element here is that instead of leaving the non-lacy sections white, I painted them in a pattern reminiscent of water the complements the wavy patterns in the lace.

Wavy lacy vase
Wavy lacy vase

The lace pattern and the painted pattern represent the flow of water in different ways: the painted section represents it in gradations of color, but the cuts of the lace represent it in fluid curves. Unlike most of my pieces, there are no folds that cross the central lacy section, so the lace is able to flow smoothly all the way around the vase without any interruptions.

I’ll be posting the continuation of this mini-series soon, with several other pieces that explore the connection between painted patterns, lace patterns, and the overall form of the vase.

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New work: Cone-based inward/outward diagonal shift vase

I’ve been catching up on posting pieces that are currently on display at the Urbandale Art Gallery, and this is the last of those pieces. This piece continues my diagonal shift series and builds on a recent test fold. I continued the theme of cone-based diagonal shifts here, putting the test fold into practice in a finished piece. One of the challenges in designing this piece was volume and balance: all of my diagonal shift vases up to this point have had shifts that naturally tend to have similar volume on either side of the shift, so it was always fairly easy to make the piece look like the top and bottom halves were proportionate. (This type of visual balance is very different from the piece looking or being physically balanced – most of my diagonal shifts include small weights in the bottom so they don’t fall over!) For this piece, the cone on the top half is a lot narrower than on the bottom half, so I had to play more than usual with height to make sure the proportions looked right. This piece ended up an inch or two taller than most of my shift vases to get that balance.

Cone-based inward/outward diagonal shift vase
Cone-based inward/outward diagonal shift vase

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Test fold: Inward/outward cone-based diagonal shift

Before my diagonal shift series went on hiatus for several years, I was playing with cone-based diagonal shifts, including ones where the cone pointed inward as it approached the shift plane and ones where it splayed outward. This test-fold combines an in-turned cone on the bottom with an out-turned cone on the top, creating the appearance that a singe cone continues through both halves of the model. This continues a theme of mixed-shape twists that I had started several years ago.

This was a test fold for one of the pieces currently on display at the Urbandale Art Gallery – photos of the finished piece coming soon!

Inward/outward diagonal shift
Inward/outward cone-based diagonal shift

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New work: Cone-based downhill diagonal shift vase

This piece is a return to my long-dormant diagonal shift series. I played a bit before with diagonal shifts based on a cone instead of on a cylinder, along with a test fold of a diagonal shift based on an out-turned cone. Similar to my previous downhill diagonal shifts, the shift in this piece is really a stack of two bends and one shift. To get all the angles correct, the bends are cone-based bends, and the shift is based on an out-turned cone instead of an in-turned cone.

I also included a photo of the painted paper below. For most of my diagonal shifts, I’ve used sine waves for the painted patterns and let the painted lines naturally zig-zag a bit as they crossed the pleats. For this piece, since the narrowest parts of the black stripes are in places where the pleats are the widest, I incorporated zig-zags into the painted pattern. That made for a lot of measuring reference points, but it smooths out the painted lines nicely.

Cone-based downhill diagonal shift vase
Cone-based downhill diagonal shift vase
Painted paper for cone-based downhill diagonal shift vase
Painted paper for cone-based downhill diagonal shift vase

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New work: Angular nesting bowls

I’m continuing to share some of the pieces currently on display at the Urbandale Art Gallery. This nesting piece builds on the lacy series, but shifts the visual language from curves and circles to sharp angles and triangular forms. As with the circular nesting bowls, this work is composed of four separate pieces that nest together and function as a single object. The triangular cutouts echo the sharp outward angles in the bowl and vase forms. Unlike the circular vases, where gradient from light to dark tended to highlight the distinctions between the forms, these pieces gradient from dark to light. This enhances the unity between the forms because the contrast between the outer, darker piece and the inner, lighter piece viewed in partial shadow is small. The color gradient and the angularity suggests flame-like imagery. Together, the four pieces form a cohesive object defined by repetition, contrast, and gradual transformation.

Angular nesting bowls
Angular nesting bowls

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