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Old 04-10-2019, 07:24 AM   #51 (permalink)
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Originally Posted by William the Third View Post
Some minor corrections.

The formula for Mechanical/Imperial Horsepower (hp(I)) when given a unit of torque in Pound-foot (lbf∙ft), as is common in the US, is:
Torque * RPM / 5252

When the unit of power is in Kilowatt (kW), and the unit of torque is in Newton Metre (N⋅m), as is common in much of the rest of the world, it is:
Torque * RPM / 9548.8

1 Mechanical/Imperial Horsepower ≈ 745.7 Watt
Well aware but the constants didnt matter as the point I was making was that as bottle pressure increases so would torque demand and therefore rpm will drop and so will fill rate. Also while 745.7W is the direct HP conversion its never actually how much power youll get for 745.7W. Between friction, coil resistance loss, back emf, control circuitry, etc. 1000W to 1 HP is a much closer to real world figure, and its how most electric motors Ive ever used are rated, though Ive used some that are even less efficient.
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Old 04-10-2019, 03:07 PM   #52 (permalink)
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Well aware but the constants didnt matter as the point I was making was that as bottle pressure increases so would torque demand and therefore rpm will drop and so will fill rate. Also while 745.7W is the direct HP conversion its never actually how much power youll get for 745.7W. Between friction, coil resistance loss, back emf, control circuitry, etc. 1000W to 1 HP is a much closer to real world figure, and its how most electric motors Ive ever used are rated, though Ive used some that are even less efficient.
The keyword was "minor", I wasn't attempting to negate your premise. You're likely more knowledgeable on the subject than me, so let's just say I was being pedantic.

Now shut up and take my money, I'm still waiting for an Autococker SR board!
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Old 04-11-2019, 08:31 AM   #53 (permalink)
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The keyword was "minor", I wasn't attempting to negate your premise. You're likely more knowledgeable on the subject than me, so let's just say I was being pedantic.

Now shut up and take my money, I'm still waiting for an Autococker SR board!
Im working on them buddy! My time has been scarce lately. R45vt and I have found that despite my timing routines now being dead accurate that we are only getting 2/3 the fire rate we should. Im hoping this sunday Ill be able to break out the oscilloscope and work on getting the fire rate where it should be. Otherwise its about ready.
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Old 04-11-2019, 02:49 PM   #54 (permalink)
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Im working on them buddy! My time has been scarce lately. R45vt and I have found that despite my timing routines now being dead accurate that we are only getting 2/3 the fire rate we should. Im hoping this sunday Ill be able to break out the oscilloscope and work on getting the fire rate where it should be. Otherwise its about ready.
It's all good. Hopefully you realize that what I said was in jest, hence my used of the "shut up and take my money" meme.
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Old 04-11-2019, 02:56 PM   #55 (permalink)
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Now shut up and take my money, I'm still waiting for an Autococker SR board!
..... Do they exist?
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Old 04-11-2019, 03:09 PM   #56 (permalink)
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..... Do they exist?
Kind-of. It's a project that The_Hyren started about a year ago. Check out this thread - Autococker SR board design.
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Old 04-13-2019, 10:07 PM   #57 (permalink)
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Got my YH today, got it all setup and I'm really impressed with it. Does anyone know what size the batteries are in the temp gauge? My didn't come with any.
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Old 04-14-2019, 12:03 AM   #58 (permalink)
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Got my YH today, got it all setup and I'm really impressed with it. Does anyone know what size the batteries are in the temp gauge? My didn't come with any.
I have found them to have multiple styles. Mine actually was the same as my dog's laser pointer. She chases that like a cat. It's adorable.

Anyway, stole one from there...
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Old 04-19-2019, 08:50 AM   #59 (permalink)
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Got my YH today, got it all setup and I'm really impressed with it. Does anyone know what size the batteries are in the temp gauge? My didn't come with any.
I got 357's for my gauge
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Old 04-19-2019, 08:52 AM   #60 (permalink)
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I picked up some lr44's but haven't put them in yet.
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