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  1. Bruce got it. A regular mower shop should be able...

    Bruce got it. A regular mower shop should be able to make what you need. The place I use to go to didn't sell pre cut length. Just another option.
  2. Something like this? The voltage shouldn't...

    Something like this? The voltage shouldn't matter.

    Blade-Style DC Circuit Breaker, Vibration-Resistant, Push Button Style, 48V DC

    https://www.mcmaster.com/4212T4
  3. Normally residential HVAC controls use a 3 amp...

    Normally residential HVAC controls use a 3 amp fuse. I don't think I've ever seen a circuit breaker. The problem with a breaker is that it's not always reliable in low current ranges, or high for...
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    Modulus of Elasticity is somethings ability to...

    Modulus of Elasticity is somethings ability to bend without permanent deformation. Hence "elastic "

    Kiln Dried Douglass Fir is roughly 1,700,000 psi
    Kiln Dried Eastern Hemlock is roughly...
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    I've used steel 2x4 track as a ledger in the...

    I've used steel 2x4 track as a ledger in the past. It works well, easily attached, attached to, and is straight (smack nail it to the block wall). I'd use 2x6s and notch the ends. Also, I'd strap the...
  6. I also calculated 9778.125 feet. Two corners are...

    I also calculated 9778.125 feet. Two corners are 90 degrees or they would be marked as such.
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    Sorry Dave I didn't see your question. I've...

    Sorry Dave I didn't see your question.
    I've never used Startron
    At home I use about 4 gallons of gas and 2 gallons of 50:1 a year. When I buy gas I put Staybil in it. I also keep it in a Type II...
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    Frank, Do they split Y up and share common?...

    Frank,

    Do they split Y up and share common? It seems more complicated than necessary. What brands or models did you run into this? I'm just curious.
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    Do you have a single line or a model number? I'm...

    Do you have a single line or a model number? I'm curious as to how or why they split y up.

    I just put in a 2 stage Goodman heater for my parents. It uses a single stage stat. The second stage is...
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    I've never seen one like that. How is the air...

    I've never seen one like that. How is the air handler wired?
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    I would take the air cleaner out, spray in a shot...

    I would take the air cleaner out, spray in a shot of carb cleaner, then start it. Once running give it another quick shot. If it starts to die, give it another shot. If you can keep it running on...
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    Frank has it right. I just wanted to add that Rc...

    Frank has it right. I just wanted to add that Rc and Rh are jumped together unless you have two different systems controled by the same thermostat. Example: A hot water boiler for heating and a...
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    Unless you change the 4" pickups to 6" I doubt it...

    Unless you change the 4" pickups to 6" I doubt it matters. If your blower can pull -16" and move 2300 CFM (or 20% less) you should have no problem pulling the CFMs required by the manufacturer of the...
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    "Reading a little more around, it doesn't seem to...

    "Reading a little more around, it doesn't seem to make sense for a single tool user to drop to 4" for the drops as with this blowers CFM that would be the limiting factor."

    I'm not sure I...
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    I would avoid flex in the main all together. Too...

    I would avoid flex in the main all together. Too much friction. Is there a reason you feel you need it? How much set do you need?

    Yes, you are correct about the lateral.

    CFMs and Pressure...
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    I'm sure others will add in. I didn't do any...

    I'm sure others will add in. I didn't do any numbers, but I'll point a few things out.

    I'd stay away from any flex in the main. It is loaded with friction and noise. Use two 45* elbows. If you...
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    McMaster has them. 1/2 and 5/8 ID aren't odd...

    McMaster has them. 1/2 and 5/8 ID aren't odd sizes.

    Bearings, Sealed, Trade Number R8-2RS, for 1/2" Shaft Diameter

    https://www.mcmaster.com/60355K704
  18. As to Larry's advice, the CFMs aren't relevant to...

    As to Larry's advice, the CFMs aren't relevant to moving sawdust. You need velocity. This is where the engineering data for the fan is used. You need to know how many CFMs the separator and fan are...
  19. I have never put angle rings on snap lock duct....

    I have never put angle rings on snap lock duct. We use this connection on paper trim and abrasive dust collection systems where any laps on the inside of the duct would cause blockages or accelerated...
  20. McMaster has it. Gear Oil, ...

    McMaster has it.
    Gear Oil,
    https://www.mcmaster.com/2158K83

    ISO 460
    Don't use oil with sulfur additives. They may cause corrosion issues if the gear box has any brass or bronze. parts
  21. Snap lock is only good for -2". If you put angle...

    Snap lock is only good for -2". If you put angle flanges on it it would raise the static rating, but they are $25 each. We pay about $32 for 12" x 10' 26 ga. Good for about -15". Yes, the vanstone...
  22. George and Ryan make good points. I think the...

    George and Ryan make good points. I think the heaviest you could make snap lock would be 22 or 20 ga and it would likely collapse. Angle rings are cheap $20, but that will add up. Spiral will be the...
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    Michael, Those fittings look fine. There are...

    Michael,

    Those fittings look fine. There are ways to vacuum braze in production levels. I don't have any experience with this.
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    Ron, We are talking about two different...

    Ron,

    We are talking about two different things.

    Your are correct that small pipe can withstand higher pressure than large pipe (Barlow's Law). This is hoop stress and is irrelevant in lap...
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    Ron, "The larger than line the greater the...

    Ron,

    "The larger than line the greater the stresses."
    This is incorrect. Pressure is measured in square inches. Larger pipe has more surface area, so less stress.
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