Four years ago, I knew nothing about 3D printing. In my spare time I did some 3D drawing in SketchUp, mainly Amsterdam canal houses. I liked it to build 3D models of canal houses on Google Earth. It was not easy but I learned a lot about 3D by just doing it. Opqrstu3D knew 3D printers existed, but was not interested: too expensive and I had really no idea what to do with this machines.

Today, I am almost four years addicted to 3D printing. Life is never what you think it will be! On the Dutch Design Week 2013 there was a challenge: 3D-draw a light that can be 3D printed. I like challenges, had noting to loose, checked the internet for tutorials and started drawing. My light was one of the few printable models. Five lights were exposed at the DDW2013 and mine won the Dutch3Design Award 2013. With the award came a Leapfrog 3D printer. I was amazed and even more amazed when the machine arrived: it looked very cool, but I had no idea about how this robot would fit in my life. I never 3D printed before and knew noting about this machine and how to operate it.

It took about nine months before I controlled my Leapfrog; it was blood, sweat and even tears, but also very rewarding. Printing a photo at home, is nice, but 3D printing your own product and holding it in your hands is very special. And after every print, there’s always the question: “What shall I design and print next?” 3D printing became a life changer,  a 24/7 addiction

During the first two years, I designed and printed the usual stuff: cups and cups and vases and different vases. Very boring and certainly not a life changer. But life is never what you expect it will be, and one day my 3D printer went totally out of control and printed crap only. I tried and tried, but could not control the robot anymore, it printed crap vases and crap cups. No smooth perimeters, just bubbly surfaces. I tried changing all kind of settings  without results, I was very frustrated. Leapfrog Creatr weights 35 kilo, so I could not throw it out of my window, instead I told (Slic3r) the machine to print zero perimeters or infill only. A very stupid decision, but not that stupid after all. It was my first infill only 3D print and the moment an addiction started and my life changed. Infill only 3D printing creates an unique un3Dprinted look and feel and the possibilities are endless.

Today, I print incredible light shades and unseen jewelry. In regular 3D printing you want real smooth surfaces, in infill only 3D printing, you fiddle with patterns and densities to create unexpected products. The same model can and will appear in many different looks and feels. The possibilities are endless, the ‘torture’ never stops and I like it.
Four years ago, I was just a normal guy. Today, I am a 3D-designer/ manufacturer of light systems and jewellery. Wanna see more? Visit my Instagram account: @prdcz



This weekend opqrstu3D designed & printed ‘DoubleThrill’. I am doing experiments in ‘infill only’ 3dprinting for two years now and this is the print that says it all: ‘DoubleThrill’ really looks like it’s made of lace-like fabric. It’s not as thin as lace, but 0.9 mm comes close. It was a five and a half hour print job and took 12 meters white 3D4makers PETg. It’s printed at 0.3 mm layer height, 600 layers high. By going extreme, opqrstu3D arrived at this point and created an awesome light:

DoubleThrill © opqrstu 2017

3D printed 12 Volt Light

Opqrstu3D cooperates with Gerard Schoone to design, print and assemble new possibilities in 12 Volt light systems. Gerard is a very creative pioneer in 12 Volt. When he has an idea, he sends me a sketch and I work it out in SketchUp. A year ago, he wanted a cone shaped shade. I designed and printed it, but there was a small problem: it’s a seven hours (infill only) print job and Gerard needed at least five cones. Opqrstu3D printed a prototype, but has not enough spare time to do the complete job.

Two weeks ago, we finally found someone who could: Jasper Wille from 3D4makers. He prints with an Ultimaker and can mount a big nozzle to reduce print time. Last week, Jasper printed 10 cones (print time pro cone 3 hours) and finally Gerard could build his light. It is a simple but great design. One cone builds many different lights.

PATERNOSTER endless possibilities

3D printing allows you to design and manufacture your own lighting: create your own atmosphere by saving money and energy.

Lighting © opqrstu 2017

Kees Kamper: From the moment I discovered ‘Infill Only’ 3Dprinting the possibilities are endless. Especially in light design. The grainy, silky, organic, lace-like structures, the robot prints when I program it to print infill only, are matching wonderful with 12 volt LED light bulbs. As said, the possibilities are endless, but how do they look? Nobody did it before so every new design is an adventure. Here I used the the concept ‘LOTUS’ to design a new flower light.


tissue engineering: testing PLLA

3D4makers has a new filament: PLLA. It’s a PLA that might be used in new medical applications like tissue engineering. Tissue engineering is a domain in medical technology and has emerged as a promising alternative approach in the treatment of malfunctioning or lost organs where patients are treated by using their own cells, grown on a polymer support, so that a tissue part is regenerated from the natural cells.

JP Wille, the founding father of 3D4makers asked opqrstu3D to test PLLA in infill only settings. Meanwhile, Slic3r updated their infill patterns with a pattern called ‘3D Honeycomb’. This new infill pattern should, in theory, provide maximum strength in all axes while using the least amount of material to do so. Today opqrstu3D tested PLLA on ‘3D honeycomb infill only settings and the results look very promising. The prints are light weighted, very strong and looking real clear. The cube is a tissue engineering test. As the pict also shows; PLLA is also a promising filament for non-medical prints.

Tissue engineering has nothing to do with boats and ‘kroonsteentjes’, it’s about growing animal/human cells in biodegradable materials. To demonstrate the possibilities of PLLA on infill only settings, I downloaded the model of an ear and a nose by addamay123. Creatr printed slightly adapted versions on PLLA, 3D honeycomb infill only.


3Dprinting industry


Three years ago opqrstu3D designed it’s first light: YAN.

A week ago Nick Hall wrote on 3Dprintingindustry.com: “….The energy savings on offer with this system (KCc) are substantial and it’s such a simple idea that has been turned into reality by a man that was struggling to make his 3D printer work at all. … Now he has ironed out the bugs with his Creatr and tamed his robot, Kamper and Schoen (opqrstu) are turning into a force to be reckoned with and could take the home design world by storm.”

True words, we go for it.

woven glass?

Today, Creatr printed ‘brocade’ on transparent PET-G. The most functional light in opqrstu3D history. Very clear, but structured enough to dim the direct light power of LED’s. Again, ‘infill only’ comes with an un3Dprinted look. This time, clear PET-G infill makes me think of woven glass: very thin (1 mm) but structured, excellent for 12 Volt, 1 Watt LED.

brocade © opqrstu2016
brocade © opqrstu 2016

Opqrstu3D designed ‘brocade’, but it’s just an imitation of a very classic light shade. This shape became classic because it does what it has to do: spreading photons, the way we like it.

Are these lights affordable?

When you are an experienced 3D printer and study the ‘infill only’ concept, these lights are very affordable: once designed, you can print as many as you want. Creatr needs 4 hours to complete this job. It’s a tricky job, so not every print will survive. A ‘brocade’ light shade consumes 13 meters Pet-G and some electricity. You also need a very cheap LED driver and print a save housing around it: another 13 meters of filament on a 4 hour print job. Together: 26 meters PET-G, 8 hours of printing, some electricity and some cheap things, max: 15 dollars pro ‘brocade’ light system. Do It Yourself and save a whole lotta a money and energy.