Multi-Spectrum UV Resin Curing Station with Würth Elektronik LEDs

If you've cured a resin 3D print before, you may have noticed that some resins take longer to cure than others, and they also react differently in various curing stations. Most of the commercially available curing devices just blast the part with broad spectrum UV with no regard for how much energy they're using. In some extreme cases, this energy builds up heat inside the 3D printed part that can lead to cracking.
So Clem is asking the big question: is there a perfect spectrum and intensity for each resin to get the fastest curing time with the least amount of energy? Which spectrum is responsible for the curing, and can we cut energy bills by just omitting all the spectra that don't help this process? To find out, Clem constructs a curing station using Würth Elektronik high-precision UV LEDs and Magi³C LED drivers! bit.ly/3Ut914Z
The results were not finished during the filming of the video, so Clem has made a writeup about his findings on the element14 Community: bit.ly/3Ut914Z
You can also download all the CAD, ECAD, and code for this project for free on the element14 Community: bit.ly/3Ut914Z
Shop for the Wurth high-precision LED driver kit used in Clem's project: bit.ly/3fbCY9M
Engage with the element14 presents team on the element14 Community - suggest builds, find project files, and see behind the scenes video: bit.ly/3tmdewv
Visit the element14 Community for more great activities and free hardware: bit.ly/3q6YMpu
Tech Spotlights: bit.ly/3qPrDhM
RoadTest and Reviews: bit.ly/3pV5Bux
Project14: bit.ly/31wbnJY
#0:00 Welcome to element14 presents
#0:28 Overview
#2:30 The LEDs
#3:29 The Circuits
#8:48 Building It!
#14:27 The Results!
#15:22 Give your Feedback
#3dprinting #3dprinter #3dprint #3dprinted #resin #led #uvlight #ledlights #ledlight

[@NZHippie]

Great idea Clem, good to see a simple explantation and practical approach towards developing the concepts into hard facts...

[@MAYERMAKES]

Thanks, that's the goal.

[@Workshopshed]

Was just about to suggest an interlock switch on the door when you mentioned it in the video.

[@MAYERMAKES]

Safety third

[@PetrauskasAntanas]

5:21 removing or adding LEDs will not change the current. LED driver will change voltage accordingly to number of LEDs but the current will stay the same. Of course the total used electric power and light power output will also change. The same mistake is at 6:06 - you regulate brightness by changing current using DIM pin or resistor Riadj value.

[@MAYERMAKES]

Good catch! of course the current stays constant. The dim pin is used for dimming via pwm. At that point I had not decided on controls/psu , I expected 24v but wasn't sure i can get a suitable supply yo drive all 36 LEDs at once. I'm glad we have such knowledgeable users that spot these details!

[@sadeghsafarzadeh4728]

👏👏👏

[@cyrusramsey4741]

Are there any advantages to curing with lower power over a longer time?

[@MAYERMAKES]

you can avoid cracking on some difficult resins, and some others tend to droop when they get warm, which could also be prevented.

[@suomynona4607]

Shouldn't you first verify your negative consequences of broadband curing? You may be developing something to solve a nonexistent problem.

[@MAYERMAKES]

The case is extremely but can happen, main point is energy saving, and possible time savings depending on the resin used.