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Hi, Sorry I didn't reply, I was a novice at instructables and didn't know how to. Yes you are correct 2cm strips and the knitting needles were 7.5mmIm still making the scrubbbing pads, I hope you did have a go at making your own.
How to make an affordable 'Vein Finder', for use during venipuncture
3d printed medical vein finder
Thanks so much. I was also wondering if you had tried with a different amount of LEDs? I now in some of the "real' vein scanners they have up to 30 LEDs. Would that make the veins easier to see?
Soda Can Whistle
Soda Can Stove
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