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  1. Replies
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    It’s a sellers market, the deposit ask sounds odd...

    It’s a sellers market, the deposit ask sounds odd to me.

    Are you asking them to hold it? If so maybe, but has some risk.

    I would not pay anything until you go there, see it, and meet the seller...
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    If doing this, you would use a radial blade fan...

    If doing this, you would use a radial blade fan like is used in single stage DC. The radial blade is best at material handling.

    The in-line type are axial or vaneaxial and are meant for fumes like...
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    We have one in our kitchen and one at the wetbar....

    We have one in our kitchen and one at the wetbar. The one in the kitchen is shelves with angled pieces that catch the bottles on each side. There are multiple shelves for the height of the base...
  4. I first got a tracksaw when my shop was in our...

    I first got a tracksaw when my shop was in our basement. It was less than a 1-car garage in size. I used a much cruder track setup than yours with a regular circular saw. I went to the tracksaw...
  5. Straight duct on the cyclone inlet is generally...

    Straight duct on the cyclone inlet is generally for cyclone performance. The fan is already in a bad spot sitting on top of the outlet pipe. The spinning air of the clean gas vortex going through...
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    Kevin, I think this is a huge improvement over...

    Kevin, I think this is a huge improvement over the cartridge arrangement. I do industrial dust collection equipment in my day job. When using cartridges, we add 2-3X the filter area of a bag to get...
  7. Unless you are in a production scenario where...

    Unless you are in a production scenario where automating the gates gains you productivity, or you need to automate to ensure employees use them for health/insurance reasons...it may be hard to...
  8. I think you have a good plan for two collectors...

    I think you have a good plan for two collectors and splitting up the system. This makes sense if you are going to have more than one user and they can be using another machine. Just have to plan...
  9. I have had best long term results with workboots...

    I have had best long term results with workboots (Redwing, Carolina, etc). The best ones were the wellington style (cowboy boot style) with steel toe. My current work boots are lace up and have the...
  10. Hi Alan, One thing you might do to improve the...

    Hi Alan,
    One thing you might do to improve the fit, is when making the mating template, do a first rough pass cutting all the way through. Then, cut it again but this time secure the rough mating...
  11. Use your existing curved piece and flush trim a...

    Use your existing curved piece and flush trim a matching template.

    Then, use a rabbet bit to make a rabbet into the matching template you just made. The bearing rides your existing curve and the...
  12. David, According to your chart, the Nederman has...

    David,
    According to your chart, the Nederman has a flat curve which is indicative of the blower type and also means it has a constant flow for various gates open up to about 2000 CFM+. This looks...
  13. In large systems with multiple compressors, they...

    In large systems with multiple compressors, they use storage tanks at higher pressure so the extra capacity will smooth out the high demand peaks. They do this as an alternative to buying a new...
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    Your reduction from 6" to 5" at the cyclone is of...

    Your reduction from 6" to 5" at the cyclone is of little concern from a performance perspective. The primary concern is the cyclone size. The SDD with 5" connections is designed for a lower...
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    Yes, I completely agree between 5” bs 6” in this...

    Yes, I completely agree between 5” bs 6” in this application. I have also seen where others have posted that a duct supplier had increased their duct size in part of the system. I assume it was to...
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    Actually CFM will increase as you increase duct...

    Actually CFM will increase as you increase duct size, all else being equal. Increasing duct size results in less pressure loss so you operate farther to the right on the fan performance curve.

    The...
  17. There should be a mechanical safety relief on the...

    There should be a mechanical safety relief on the system that relieves before damage would happen. The tank should be rated (stamped?) for a pressure exceeding the max pressure the compressor can...
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    The other issue with static is that it can...

    The other issue with static is that it can inhibit flow in the ducting. The static charge is not just on the outside, its also on the inside and, in a severe case can cause material to build up in...
  19. For the unistrut, use a spring nut (I think that...

    For the unistrut, use a spring nut (I think that is what it is called?) that has a threaded hole in it. Then use a hook or eye bolt with the same threads as the spring nut to hold whatever strapping...
  20. I have some fittings that don't appear to be, but...

    I have some fittings that don't appear to be, but could be they just got discolored from sitting in the store.

    I used galvanized pipe on my previous compressor setup to mount the filter/regulator....
  21. Is galvanized pipe also galvanized on inside? I...

    Is galvanized pipe also galvanized on inside? I thought it was just exterior?
  22. For air lines installed indoor, why use...

    For air lines installed indoor, why use galvanized? You can paint black pipe if concerned about ambient moisture.
  23. This is a larger than normal home/hobby system...

    This is a larger than normal home/hobby system but is still a very small dust collection system in terms what we see in industrial applications.

    I read the other thread related to this on on the...
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    I run it against the fence if it can be cut in...

    I run it against the fence if it can be cut in one pass, and I bury the dado in a sacrificial face. If multiple passes, best to start on end and make final pass against fence, otherwise have to make...
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    How do you read the flow in a duct with a fan...

    How do you read the flow in a duct with a fan anemometer?

    I would recommend a Dwyer mini pitot tube and a magnehellic gauge or a digital manometer to use with the pitot tube.

    This will also...
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