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  1. T

    Twist lock flanges

    That part made sense to me. I figured you used the band saw.
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    Twist lock flanges

    I am anxious to see how you cut the female flange. Thanks for sharing this part. Dale
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    Twist lock flanges

    Please explain how to use the wooden plug. Am I correct in thinking that you place the acrylic on the slanted plug then spin the entire unit past the router bit? Do you index the acrylic to the same spot for each pass? It sure looks more simple than the monstrosity I was playing with...
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    Air Volume via Needlewheel Pump

    http://onlineconversions.com
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    Diy Skimmer

    I started another set with the reciever ramped, and it has multiplied my amount of compression and spread out the force as you mentioned. I just need to try it put in the o-ring groove and test it again. Maybe this weekend. As a side not I tried my hand at flame polish of the parts. They...
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    Diy Skimmer

    Don, I am here to see how your jig is made. I am still fighting with mine. When I made mine, I had trouble getting the ramp to go under the flange to create the lock. There was so little "ramp" that I am having trouble getting the o-ring to compress. Now I am ramping both halves. I am...
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    Air Volume via Needlewheel Pump

    Spazz is getting 135 scfh from his dart needlewheel, but that is with a air assist.
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    Minor problem during stand construction

    Use a solid top for the tank support. Also run a frame work perpindicular to the tank under the top. With the use of a solid top, the 1/4 inch may be insignificant. Dale
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    Odd skimmer idea

    http://www.tinygiants.com/wwwthreads-php/showflat.php?Cat=&Board=saltwater&Number=8762&page=0&view=expanded&sb=5&o=&fpart=1 It is the attachment on this post. To my knowledge the calculations are correct. There is a conversion calculator to convert most of the needed units (mm to inches for...
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    Odd skimmer idea

    Crazyreefers calculator had a few bugs in it, and the original version was geared to a specialized design he was working on. He is working on a new version, but he has not posted it yet. In order to calculate the bubble saturation level, it is a bit of low level math. Start with bubble dwell...
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    Skimming 101

    My skimmer is under construction. I should finish up this week. My water flow meter for the feed line came in today. I still need to find one for the recirc line. My air bubbles seem a bit large. I mistakenly ordered the medium pore airstones. However the difference according to aquatic...
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    Skimmer Calculator

    Not on paper it doesn't. We will see what I get in reality. Physicaly his design is exactly what my tank models out to. The funny thing, is that I planned to do this in a 8" design. This calculator shows how that would have thrown off my numbers. Dale
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    Skimmer Calculator

    Good Luck. The more I play with the numbers, the more Snailmans Skimmers work. Dale
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    Skimmer Calculator

    Your cubic feet of water recirc calc is wrong. Your multiplying cubic inches X Gallons per hour and getting cubic feet per hour as the answer. In the bubble rise you are adding/subtracting inches per second +/- gallons per second and getting inches per second (velocity). To me. the formulas...
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    Skimming 101

    Yes this thread was very instrumental in my beginning to understand skimmers. I used the formulas from the Escobal book as the basis for my spreadsheet. I added a few logic routines of my own (inspired by crazzyreefer) for calculating bubble dwell time and air volume needed to maintain air...
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    Skimmer Calculator

    I have a question on the plate design. I believe the formula you and I discussed for calculating bubble rise to be a fairly accurate model (bubble rise - water velocity) = corrected bubble rise rate. However I do not believe it will work in horizontal flow (plates). The reason is that the...
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    Skimmer Calculator

    Crazzyreefer I found a math error on your sheet. Cell A18 (bubble rise) is an addition of H12 and I7. You need to convert I7 from GPS to inches cubed per second for the value to be true. The same is true for D18 (bubble rise counter current). Cell G7 (water cubic feet per hour) is...
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    Skimming 101

    I was working with crazzyreefer on the development of my sheet at the other site. His sheet was first. It is not the same as the one he posted. There are differences in the design his calculator is made for (I liked his sheet, but it did not fit my design goals). He is playing with a new...
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    Skimming 101

    Well based on this thread (and one at the other site), I built a spreadsheet to help with all of these calculations. Something that came up over there was bubble dwell time versus water dwell time. A chemical engineer debated the point that it was the air contact with water for 120 seconds...
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    What can reasonably be automated?

    I have seen a number of threads lately about automation. What things can you control? I know about lights, canopy fans, & auto top off. I am not 100% sure about the mechanics in doing these things, but they seem achievable with my skills. (I am following Donw's post on this board.) What...
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