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  1. Replies
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    They're also called ring blowers. I use one for...

    They're also called ring blowers. I use one for sand blasting breathing air.

    We're going to plumb it better because it's so useful for blowing clothes off, blowing sand off of parts and out of...
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    If you can tolerate a gap between the sheets you...

    If you can tolerate a gap between the sheets you can form a channel on the outside with a screw pulling a wedge in.
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    I actually specced out everything for a press...

    I actually specced out everything for a press brake and bought most of the stuff a while ago. We bought a brake so I'm repurposing the stuff.

    I used rotary flow dividers, and leadscrews to adjust...
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    I'd personally use a series parallel circuit to...

    I'd personally use a series parallel circuit to keep 8 ohms impedence per channel, and just have an amp that can drive 8 ohms at 1000 watts between channels.

    I see many amps on amazon or ebay that...
  5. Is a phase perfect really that expensive that you...

    Is a phase perfect really that expensive that you would rather buy and wire in an oversized vfd, a filter, and a transformer to have not quite a guarantee of running the machine without tripping? And...
  6. Replying to basically only the first post here. ...

    Replying to basically only the first post here.


    There exists a point where the increased operating efficiency more than makes up for the carbon footprint of producing the new unit. Air...
  7. Have you looked into purpose built static phase...

    Have you looked into purpose built static phase converters? Basically just VFDs with better filters and DOL starting capacity.
  8. At one point I made a little hand operated...

    At one point I made a little hand operated cantilever brake that could get all of the way into corners. But it would take nearly an hour to do enough step bends for it to look round.
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    It's pretty easy to test, isn't it? There aren't...

    It's pretty easy to test, isn't it? There aren't that many parameters to tweak if you adjust them methodically.
  10. Why even weld it? Can you not just machine an end...

    Why even weld it? Can you not just machine an end of an aluminum rod? Turn down the rest of the shaft if needed. Not a huge deal for a one off.

    In any case, I wouldn't trust a single weld like...
  11. Just mill the part out of billet if you just need...

    Just mill the part out of billet if you just need one, instead of building an entire press.

    I disagree with the people who say you just need a simple punch and v-die in a shop press. Dimensions...
  12. If I were to do it I would drill and tap a...

    If I were to do it I would drill and tap a pattern of holes directly on the joint and thread in set screws. This prevents slip in all directions.

    Having just read more of the posts I realize...
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    I like the dark blue ones we have, but I don't...

    I like the dark blue ones we have, but I don't think it matters much
  14. The starts per hour subject is a bit of a tricky...

    The starts per hour subject is a bit of a tricky one because it depends a lot on the specific motor and the inertia of the load. Proper blowoff makes a compressor a fairly easy load to start. The...
  15. Positive the motor seized and not the compressor....

    Positive the motor seized and not the compressor.

    I replaced a burned motor on a 10hp reciprocating compressor and it nearly blew another motor because the compressor head had issues.
  16. If you rely on burning charcoal to flavor your...

    If you rely on burning charcoal to flavor your food, you need to learn to season your food better. Electricity makes heat just that works just as well as charcoal or propane.

    A stainless hot...
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    Is it radial or torsional vibration? Single...

    Is it radial or torsional vibration?

    Single phase motors and combustion engines have torsional vibration. No electric motor should have any radial vibration.

    If you have axial vibration then...
  18. Sounds like they are made that way for cost, not...

    Sounds like they are made that way for cost, not safety. Not really any benefit over glass other than ease of forming.
  19. I've never seen acrylic bell jars before. All of...

    I've never seen acrylic bell jars before. All of the ones I've seen are glass.

    Anyway, acrylic shatters into sharp fragments just as easily and I don't think it's any safer than glass....
  20. Pressure pots for paint sprayers are rated to...

    Pressure pots for paint sprayers are rated to around 110psi often. I have two and they are very convenient.

    A cheap diaphragm pump can pull 20 in hg and may be adequate. Otherwise I would use an...
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    Aren't those teflon, and about $50 per foot?...

    Aren't those teflon, and about $50 per foot? Anyway, this hose definitely was not rated to that temperature.
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    I accidently ran 500 psi liquid nitrogen through...

    I accidently ran 500 psi liquid nitrogen through a rubber hose. It certainly got firm.
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    Areas where you can't have grit get in aren't a...

    Areas where you can't have grit get in aren't a suitable place for dry blasting either, as the stuff you blast off will get into the important bits and are often plenty abrasive on their own. You...
  24. If your six bends are from front to back...

    If your six bends are from front to back 1,2,3,4,5,6 can you bend in the order 2,1,4,5,6,3 or 2,1,5,6,3,4?Then you have just one or two bends you can't directly gauge off of and will have to scribe....
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    In general, yes, but with vehicles? Perhaps not.

    In general, yes, but with vehicles? Perhaps not.
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