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  1. moosetracks555

    Lake drain pipe sealing

    Thanks again! @CVG We will try contracting some concrete pumpers and see what we come up with. Were those pictures you found on google, or personal photos? @LittleInch Yes its a private damn. The current end of the pipe is about 30 feet from the base of the damn. The pipe is estimated to be...
  2. moosetracks555

    Lake drain pipe sealing

    Thanks for all your input. We are not sure of the purpose of the line. He didn't dig it up to find out where it went or what was on the end. It was found when he noticed a soft spot and water coming up through the ground. After digging it up the pipe was left open on the end and had been...
  3. moosetracks555

    Lake drain pipe sealing

    My dad has a 18 acre lake that had a drain pipe that he didn't know about until it began to leak. He found the drain end of the pipe and it is now open and draining and after lots of scuba diving with terrible visibility he finally found where it is in the lake buried under a mound of rocks...
  4. moosetracks555

    Help with payback calculation

    The ends of the logs start cracking and then the log starts to rot. We assume 2% degrade on each log / week. The logs are never trash, but the number of viable board feet you get from the log goes down a little each week. I don't have data to know when it tapers off, probably around 25% degrade.
  5. moosetracks555

    Help with payback calculation

    Thank you all for your input. I agree with you. I don't know why I had such a hang-up, but it seemed like it needed to be more complicated than it is. I apologize for the confusion on my part
  6. moosetracks555

    Help with payback calculation

    Unfortunately I don’t see the simplicity. You are saying if the sprinkler costs more that 500 logs you don’t do it. That is like saying I won’t buy a $1000 refrigerator because the groceries I am going to put in it don’t cost as much as the refrigerator. The log inventory is revolving and...
  7. moosetracks555

    Help with payback calculation

    rb1957, I understand what you are saying if I say each log suffers 2% degrade / week then after 50 weeks the logs are 100% degraded and we need to compare that to how many logs we will loose with the upgrade vs without. However the 2% is only an estimate and we are talking about a 20 week time...
  8. moosetracks555

    Help with payback calculation

    rb1957, Actually the sprinkled logs will be the oldest, but you can take them out of the picture and just assume a FIFO with the un-sprinkled logs. We assume a 2% / week loss. Unfortunately the loss is not worth the cost of moving them around.
  9. moosetracks555

    Help with payback calculation

    VPL, I am in agreement with you of the obvious solutions. I thought about adding the reasons for why we are in this situation, but I did not want to get into discussions about why not do this or that. This is hopefully a short term situation and we suffer weather degrade about 20 weeks of the...
  10. moosetracks555

    Help with payback calculation

    It is not exactly fifo because we will use the un-sprinkled logs first. They way I figure it if we don't upgrade we will reach a steady state loss $ / week once we reach 10 weeks. In the other example with the upgrade we will reach steady state loss $ / week in 5 weeks. I am trying to figure...
  11. moosetracks555

    Help with payback calculation

    You are correct there are 1000 logs during week 3. I have broken it down because some logs are 2 weeks old, and some are 1 week old. Read the full sentence for week 3 and see if it makes sense... Week 3 says you have 800 Logs not sprinkled for 2 weeks +100 Logs not sprinkled for 1 week +100...
  12. moosetracks555

    Help with payback calculation

    I am having a difficult time coming up the savings figure for the following situation. I am almost certain the solution is a rate calculation involving calculus. However, it has been so long I don’t know where to start. We have logs that degrade when not sprinkled with water. Our inventory...
  13. moosetracks555

    New laptop with serial port

    It is called an express card or at least thats what the new slot is called on mine.
  14. moosetracks555

    MicroLogix 1100 programming question

    I was thinking along the same lines a skiier. The cost of the software and time to learn it will determine which is cheaper. The adjustable time off delay relays can be found at McMaster Carr www.mcmaster.com part number 7268K43 $53.
  15. moosetracks555

    New laptop with serial port

    I was shocked when I got my new Dell Vostro 1700 a few months ago and the PCMCIA slot was gone. It seems PCMCIA is on the chopping block as well. I have two different USB to serial adapters a IO gear, and a belkin F5U103. The IO gear works on almost every thing I have except a linmot drive...
  16. moosetracks555

    Linear Slide Joystick

    I am trying to give an operator a control for moving a 25’ slide. In a past application I used an analog joystick with a frequency drive. It works ok, and once the operator gets used to the deceleration and response they can usually get close. For another application with a 36” stroke I built...
  17. moosetracks555

    Water powered valve???

    BigInch, That looks like a good solution. Do you have any experience with these? How clean does the water need to be to run these valves?
  18. moosetracks555

    Water powered valve???

    I am wondering if such a device exists. We have 5 irrigation sprinkler pumps that we need to cycle off and on every x hours. I am trying to avoid running wires to each sprinkler head and using an electric valve to turn them off and on. The sprinkler uses about 50 GPM, and the water is not...
  19. moosetracks555

    Is an AC line Filter necessary for a servo drive.

    itsmoked, Thanks for your comments. It is a before the drive device. Here is the info from AB... 2090-UXLF-HV323 1 AC LINE FILTER,ULTRA,23 AMPS, 460V, 3 PHASE. $329.00 The device is suppose to prevent electrical noise from the drive entering the rest of the system.
  20. moosetracks555

    Is an AC line Filter necessary for a servo drive.

    When is a AC line filter needed or not needed? The motor is a 5 Amp 480 V servo motor on an 11Amp servo drive. There will be about 50 feet of cable between the drive an motor. The servo will be making about 1 or 2 trapezoidal moves per min. We have lots of servos, and non of them have line...

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