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KarstenHW

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  • Rubber Band Wallet || Simple, Fast, Secure

    Am I seeing this right? It is a flat piece of rectangular plastic with 6 slots on each side and 6 rubber bands? Simple, that's for sure. Laser cutter (if you have access to one) will do this in less than 30 seconds. Lots of options to decorate or customize. Hair ties might last longer. Like it.

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  • 3D Modeled Gummy Candy Injection Molds

    Excellent idea! I think I will use this with my students. I also am concerned about the food safety. You could have them design and print positives and press those into a bed of corn starch. You could even sand the layers of the print smooth to get you a nicer mould. Easier to do if it is a positive. The indentation leaves one (or many) negative mould(s) that you can fill. Probably not with jello as that is too liquid. Instead maybe with heated gummies? They turn liquid at a temperature not much hotter than the inside of my car in the summer. I know that part from experience. :) Haribo coca cola bottles melted into one piece the shape of the inside of the bag. Hard to eat such a large piece of gummy.Check the "How It's Made" youtube video about gummy candy. (https://www.youtube…

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    Excellent idea! I think I will use this with my students. I also am concerned about the food safety. You could have them design and print positives and press those into a bed of corn starch. You could even sand the layers of the print smooth to get you a nicer mould. Easier to do if it is a positive. The indentation leaves one (or many) negative mould(s) that you can fill. Probably not with jello as that is too liquid. Instead maybe with heated gummies? They turn liquid at a temperature not much hotter than the inside of my car in the summer. I know that part from experience. :) Haribo coca cola bottles melted into one piece the shape of the inside of the bag. Hard to eat such a large piece of gummy.Check the "How It's Made" youtube video about gummy candy. (https://www.youtube.com/watch?v=4voO0Gpx1J0).

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  • KarstenHW commented on llamamake's instructable Surf every river!

    Nice to see that people are still doing this 35 years later. :)

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  • KarstenHW commented on llamamake's instructable Surf every river!

    We used to do that at the Amper near Weng but we only had a wide construction plank. Worked well. Did you ever try it on the piece of Amper that is much more narrow and MUCH faster flowing. We just swam through it and there was no bridge in that area. If you do not know what area I am talking about - go find it. Much faster water flow but the river is narrow and deep there.

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  • For plugs that are too big for the heat shrink to fit over you can use SUGRU as well. You use it like model clay and it turns overnight into flexible and durable plastic.

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