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  • Ben1998 commented on Ben1998's instructable Fish Feeder 28 weeks ago
    Fish Feeder 2

    Thanks

    Thanks. This project took more time then expected, but I'm happy with the result.

    Nice to hear. I'm looking forward to your designs.

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  • Ben1998 commented on Ben1998's instructable Fish Feeder 22 months ago
    Fish Feeder 2

    Thank you

    Thank you

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  • Ben1998 posted an instructable Fish Feeder 22 months ago
  • Ben1998's instructable IR Photogate's weekly stats: 2 months ago
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  • Ben1998 posted an instructable IR Photogate3 months ago
  • Ben1998's instructable Linear Actuator Stepper Motor's weekly stats: 5 months ago
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  • Ben1998's instructable Transparent Epoxy Box Casing's weekly stats: 6 months ago
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  • Ben1998 commented on Ben1998's instructable Transparent Epoxy Box Casing6 months ago
    Transparent Epoxy Box Casing

    Jobar007, Thanks for your comment.The epoxy I've (Mr. Boat) used is a general purpose marine epoxy and has a low viscosity. The advised working temperature is around 21C / 70F. The curing of the epoxy is an exothermic reaction (it will produce heat).I've first tried the advised temperature and it turned out OK. At room temperature the bubbles have approx. 25 minutes to leave the liquid, before the epoxy starts to gel.If the first try contained bubbles I would certainly try a higher temperature of the epoxy to lower the viscosity. Be aware: heat speeds up the curing and gelling, which results in a shorter period for bubbles to escape.A bit of trail and error?

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  • Ben1998's instructable Aquarium Diorama With Ledstrip's weekly stats: 1 year ago
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  • Ben1998 commented on Ben1998's instructable Aquarium Diorama With Ledstrip1 year ago
    Aquarium Diorama With Ledstrip

    Nice to hear. Thanks.

    Thanks for your clay pot idea! The pot I've used are not cut, only the bow on the left. The bowbow is cut with a fine metal-saw. Take your time to prevent the potfrom cracking. Many aquatic plant grow better and faster with a substrate orpotting soil. I use the approach of no substrate or potting soil(most aquatic plants get their nutrients from the water and use theirroots to anchor themselves). My plants grow a lot slower, so I needno CO2. The nutrients are added to the water by fertilizer ballsinserted near the plants and liquid plant fertilizer added to thewater. Because of this approach the real waterplants like Vallisneriaand Java moss grow better then the other plants.Depending on your plants, fish, water, temperature and aquariumsize you might need something completely different...

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    Thanks for your clay pot idea! The pot I've used are not cut, only the bow on the left. The bowbow is cut with a fine metal-saw. Take your time to prevent the potfrom cracking. Many aquatic plant grow better and faster with a substrate orpotting soil. I use the approach of no substrate or potting soil(most aquatic plants get their nutrients from the water and use theirroots to anchor themselves). My plants grow a lot slower, so I needno CO2. The nutrients are added to the water by fertilizer ballsinserted near the plants and liquid plant fertilizer added to thewater. Because of this approach the real waterplants like Vallisneriaand Java moss grow better then the other plants.Depending on your plants, fish, water, temperature and aquariumsize you might need something completely different.

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  • Ben1998 commented on Ben1998's instructable Fish Feeder Sensor Array2 years ago
    Fish Feeder Sensor Array

    No doubt there are better and smarter alternatives. The sensor array is designed to be swapped out, depending on your needs. Feel free to experiment!

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  • Ben1998 commented on Ben1998's instructable Fish Feeder Sensor Array2 years ago
    Fish Feeder Sensor Array

    Dick55,Good question ;-)In short the principle: A beam of light from the led is send tothe LDR array. If food is released from the feeding container, thelight beam is disturbed, resulting in a lower value at the analogpins. The Arduino registers the 5 LDR analog pin values once beforefeeding and multiple times during feeding. - A small amount of food will result in a small width and shortperiod of shadow on the LDR’s As opposite:- A large amount of food will result in a wider and a longerperiod of shadow on the LDR’sAfter feeding the registered values are examined. If a value islower then before feeding, the programs knows the light beam isdisturbed and assumes food has passed, it will then increase thecounter of that particular LDR with 1. All 5 LDR’s are countedsepar...

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    Dick55,Good question ;-)In short the principle: A beam of light from the led is send tothe LDR array. If food is released from the feeding container, thelight beam is disturbed, resulting in a lower value at the analogpins. The Arduino registers the 5 LDR analog pin values once beforefeeding and multiple times during feeding. - A small amount of food will result in a small width and shortperiod of shadow on the LDR’s As opposite:- A large amount of food will result in a wider and a longerperiod of shadow on the LDR’sAfter feeding the registered values are examined. If a value islower then before feeding, the programs knows the light beam isdisturbed and assumes food has passed, it will then increase thecounter of that particular LDR with 1. All 5 LDR’s are countedseparately.The analog measurement is digitalized, 0 for no food, 1 for food. - A small amount of food will result in a low, and a few increasedcounter numbers.As opposite:- A large amount of food will result in a higher, and more evenlyincreased counter numbers.Please note : this is a way of quantifying the amount of food andis not exact, it gives an indication.For the welfare of your fish you need to check regularly your fish& system.

    p { margin-bottom: 0mm; line-height: 120%; }a.cjk:link { }a.ctl:link { }Dick55,Good question ;-)In short the principle: A beam of light from the led is send tothe LDR array. If food is released from the feeding container, thelight beam is disturbed, resulting in a lower value at the analogpins. The Arduino registers the 5 LDR analog pin values once beforefeeding and multiple times during feeding. - A small amount of food will result in a small width and shortperiod of shadow on the LDR’s As opposite:- A large amount of food will result in a wider and a longerperiod of shadow on the LDR’sAfter feeding the registered values are examined. If a value islower then before feeding, the programs knows the light beam isdisturbed and assumes food has passed, it will then increase th...

    see more »

    p { margin-bottom: 0mm; line-height: 120%; }a.cjk:link { }a.ctl:link { }Dick55,Good question ;-)In short the principle: A beam of light from the led is send tothe LDR array. If food is released from the feeding container, thelight beam is disturbed, resulting in a lower value at the analogpins. The Arduino registers the 5 LDR analog pin values once beforefeeding and multiple times during feeding. - A small amount of food will result in a small width and shortperiod of shadow on the LDR’s As opposite:- A large amount of food will result in a wider and a longerperiod of shadow on the LDR’sAfter feeding the registered values are examined. If a value islower then before feeding, the programs knows the light beam isdisturbed and assumes food has passed, it will then increase thecounter of that particular LDR with 1. All 5 LDR’s are countedseparately.The analog measurement is digitalized, 0 for no food, 1 for food. - A small amount of food will result in a low, and a few increasedcounter numbers.As opposite:- A large amount of food will result in a higher, and more evenlyincreased counter numbers.Please note : this is a way of quantifying the amount of food andis not exact, it gives an indication.For the welfare of your fish you need to check regularly your fish& system.

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