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Guidance to air compressors

Ironman said:
My first rechargeable screwgun was bought in 1982, they have been around a long time. That one was Skil brand and was 6 volt. The problem with making 'standards is that it throttles innovation. Now we are up to 50 volt tools and they are remarkable. Also among the changes are things like brushless motors(3 phase) that produce more power and eat less. These are not like old combination wrenches, they need to change to keep up.
Click to expand...
I disagree that it throttles innovation. It takes a fairly long time to design and set up for manufacturing any new battery system including the chargers. And I'm sure we all have, sitting in a box somewhere, a cell phone that is still perfectly functional except the battery is impossible to replace and the software for it has been deliberately changed to make it non-functional with newer mail or web sites. Got to get that latest marketing information into your system and tracking where you are working more sneaky.

It's just we've seen a trend over the now last 30 years of hiding or preventing the repair of things because made in the far east with economic slave labour makes them cheaper to replace. I found the manual for an old clock radio from Radio Shack that has the schematic included with it at the back of the manual. The newer RCA brand don't come with that. So when one digit vanishes so does the whole clock with a replacement. So did two of my electric drills.

A new compressor of a certain size is $800 to $1000 dollars and if the motor fails you can go buy a new one. If your $800 TV HDMI connector fails you also go buy a new one. As in new TV.
 
Ironman said:
My first rechargeable screwgun was bought in 1982, they have been around a long time. That one was Skil brand and was 6 volt. The problem with making 'standards is that it throttles innovation. Now we are up to 50 volt tools and they are remarkable. Also among the changes are things like brushless motors(3 phase) that produce more power and eat less. These are not like old combination wrenches, they need to change to keep up.
Click to expand...

Standards have nothing to do with innovation - their presence simply voids any attempts at having a monopoly or "advantage". They also make things much, much cheaper for everyone. Imagine luck of standards in say power delivery - Calgary gets 120v and Toronto gets 200v while Vancouver gets 160v. Imagine plugs and associated outlets all different.

Standards are bringing everyone onto the same "page". If there was a "standard" power tool battery in 18v range, image how much less waste there would be. Your Makita and Dewalt drills would use same battery. You would not need different charges. Would it somehow make innovation between power tools impossible? Nope. Not one difference for innovation. Heck, some battery packs made by brand names would be much better than cheap no name brand. Same as today. Some drills would be much better as well. Same as today. Just ... less waste.

A lot of non standard stuff is also done to go around patents. Not for some "innovation".

Should I mention non standard threads? Imagine "innovation" with threads were we do not have standards. Suddenly a lathe would be a mandatory tool and costs of everything would go out the roof.
 
I think I might just delete my previous posting. I can see this thread diverging into a long discussion away from compressors. And I didn't really mean to do that.
 
For what it is worth, I have a Ingersol Rand 30T compressor, and a 100 gallon tank. To get the maximum output you need 25-30 hp to drive it at 1200 rpm to get 90 cfm, or 85 at 1000rpm.
Basically .08252 cfm per revolution. I have a 4 cyl Wisconson for it. It could be powered with less hp and run slower.
it is Ser # 111622
I have a good machine in the Quincy, and a also a 125 cfm half Ford 302 compressor. I will never use this, if someone wants it, offer me something fair and take it.
 
John we're well off topic now! Standards can be good. I have a drill, a power tire inflator and a lawn mower that all run on the same 18V Ryobi batteries. It’s good.

Now the counter example. Gcode. Gcode sucks. It was developed what 40 years ago? You can’t just read it like a more modern language - you have to know what all the codes mean. Say G81 vs. G83. Which one means peck drilling? Why does it not just say peckDrill( x y z) or drill(x y z). Because it was developed when computer memory was very expensive and every little bit seriously counted. And we have never updated it because this is a standard. (Actually centroid has an alternative language for machine control you can use maybe there are others?)

Also the automation cam tools (fusion, master cam whatever) that spit out the gcode spit out pretty unmodifiable code -ok some simple stuff you can change but if you have 100 lines of g01 x y z all nearly the same you can’t modify that. If there is an error - back to the computer, fix it, regenerate the gcode, move it to the machine, restart the program on the right line blah blah hope you don’t crash. Standards are sometimes a real pain. Here’s some flame bait. How about imperial measurements? Is that good? Omg no.
 
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Janger said:
John were well off topic now! Standards can be good. I have a drill, a power tire inflator and a lawn mower that all run on the same 18V Ryobi batteries. It’s good.

Now the counter example. Gcode. Gcode sucks. It was developed what 40 years ago? You can’t just read it like a more modern language - you have to know what all the codes mean. Say G81 vs. G83. Which one means peck drilling? Why does it not just say peckDrill( x y z) or drill(x y z). Because it was developed when computer memory was very expensive and every little bit seriously counted. And we have never updated it because this is a standard. (Actually centroid has an alternative language for machine control you can use maybe there are others?)

Also the automation cam tools (fusion, master cam whatever) that spit out the gcode spit out pretty unmodifiable code -ok some simple stuff you can change but if you have 100 lines of g01 x y z all nearly the same you can’t modify that. If there is an error - back to the computer, fix it, regenerate the gcode, move it to the machine, restart the program on the right line blah blah hope you don’t crash. Standards are sometimes a real pain. Here’s some flame bait. How about imperial measurements? Is that good? Omg no.
Click to expand...
Gcode is from the 1950s!!!

G-code - Wikipedia

en.m.wikipedia.org en.m.wikipedia.org
 
Janger said:
John we're well off topic now! Standards can be good. I have a drill, a power tire inflator and a lawn mower that all run on the same 18V Ryobi batteries. It’s good.

Now the counter example. Gcode. Gcode sucks. It was developed what 40 years ago? You can’t just read it like a more modern language - you have to know what all the codes mean. Say G81 vs. G83. Which one means peck drilling? Why does it not just say peckDrill( x y z) or drill(x y z). Because it was developed when computer memory was very expensive and every little bit seriously counted. And we have never updated it because this is a standard. (Actually centroid has an alternative language for machine control you can use maybe there are others?)

Also the automation cam tools (fusion, master cam whatever) that spit out the gcode spit out pretty unmodifiable code -ok some simple stuff you can change but if you have 100 lines of g01 x y z all nearly the same you can’t modify that. If there is an error - back to the computer, fix it, regenerate the gcode, move it to the machine, restart the program on the right line blah blah hope you don’t crash. Standards are sometimes a real pain. Here’s some flame bait. How about imperial measurements? Is that good? Omg no.
Click to expand...
Well I know know about 100 times more about Gcode than I did before ( well zero multiplied by anything is still zero but you get my idea). And now a wee teeny bit makes sense.

Imperial measure (and maybe Gcode too) I think was fine for the times and made sense then but as we progress, I say throw out the inferior standards, whatever they may be when we get a much improved standard. Accept, learn, adopt and move on. At least that's my peasant opinion.
 
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