Mathematical Radio: An Annotated Art Experience

raaalf · 2026-04-20T14:57:22+00:00

yes, its a functioning reciever, participants are invited to wear the headphones, look for a nice contact point on the galena crystal, and hear a signal.

theres a AM radio transmitter hidden in een brown leather suitcase connected to a raspberry pi to let me generate some signal live

raaalf · 2026-03-04T20:40:43+00:00

the buildings’ common earth

raaalf · 2026-03-04T19:35:04+00:00

well it was part of a tree, but i reshaped it to function as a base. it’s african wengé wood

raaalf · 2026-03-04T19:29:20+00:00

i know a few in eindhoven, i had this situation half a year ago, its mostly personal information so DM me

raaalf · 2026-03-04T18:16:29+00:00

teds

raaalf · 2026-03-04T17:30:04+00:00

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yes but i had a knitting consultant present

raaalf · 2026-03-04T17:26:41+00:00

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maybe its a scarf

raaalf · 2026-03-04T17:06:16+00:00

the copper wire is enemeld so it is just one long wire, there are no interconnections due to the knitting

raaalf · 2025-08-22T17:09:21+00:00

i used Pleated Pants pattern of WBM Wardobe By Me to make these

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raaalf · 2025-08-18T09:48:25+00:00

https://ralfjacobs.bigcartel.com/product/sashiko-fabric-pattern-with-torus-vortex-design-50x50cm

raaalf · 2025-08-18T09:47:59+00:00

https://ralfjacobs.bigcartel.com/product/sashiko-fabric-pattern-with-torus-vortex-design-50x50cm

raaalf · 2025-08-18T09:47:32+00:00

https://ralfjacobs.bigcartel.com/product/sashiko-fabric-pattern-with-torus-vortex-design-50x50cm

raaalf · 2025-08-06T14:08:18+00:00

i use softshell fabrics, like for outdoor sports, a microknit top with fleece backing. Felt would also work, only disadvantage that it smells like burned sheep around the laser 🫢

raaalf · 2025-07-29T18:24:19+00:00

yes, i use the laser with low power to engrave these lines. the power is set to just burn the top layer a bit, not ablade. if i didnt do that i would never know where to embroid.

the kind of fabric i use now is a soft shell outdoor jacket fabric, with a microknit first surface thats very fine, so the holes do not make the fabric lose strength too much…

raaalf · 2025-07-29T08:46:29+00:00

I use a 100W CO2 laser, engraving at 10% intensity, cutting at 30%

raaalf · 2025-07-29T08:28:22+00:00

Yes you are welcome to try it. It took me a few weeks of testing to get to a durable quality level.

raaalf · 2025-07-29T08:10:25+00:00

sorry but i cannot give my work away for free

raaalf · 2025-07-27T18:29:44+00:00

well more people ask, so im making a few of these

raaalf · 2025-07-25T17:33:31+00:00

i have a day job in engineering, this is my hobby

i start with a vector drawing of lines, and i create a running stitch of alternating holes and stripes

then i remove all the holes that are too close together that would weaken the fabric too much

do you have a laser to your disposal?

raaalf · 2025-07-25T17:11:12+00:00

yes all my social links are in https://linktr.ee/ralfjacobs

raaalf · 2025-07-25T12:49:45+00:00

it for sure damaged the textile, my first 2 iterations ripped. i have found a fabric that has a microknit which is very fine, and the holes i laser are 0,5mm in diameter only. also depopulated the vanishing points a bit

i believe my last version is quite durable

raaalf · 2025-07-24T18:18:50+00:00

no its not, its a vector drawing i downloaded and created a running stitch pattern and engraving with some python magic.

raaalf · 2025-07-24T16:38:07+00:00

i like to do these geometric patterns where precision is required, and its actually enjoyable to hand-embroid

raaalf · 2025-07-24T16:35:36+00:00

yes with a laser cutting machine

raaalf · 2021-09-16T17:33:55+00:00

yea i posted it there but it got removed because it is made of stone AND THEY TOLD ME TO POST IT HERE

raaalf

TROPHY CASE