I understand what you say about the stepper motors and I agree but how about if I was to connect the meter to measure the Amps from the power supply only?
Nice this Kill a Watt gadget but no good for my needs, thank you. My cnc is for hobby use and will not be used often to justify power savings
However reading the Amps I don’t know what it will tell me but eventually I will find out LOL.
Sorry about the Kill a Watt gadget, I misunderstood. However another point is that I want to have a nice looking control panel and it means my meters have to be build in (surface mounted).
the OP said:Now I understand better what you are talking, thank you for your understanding.
I don’t have to show you the ebay samples because the links you provided are what I'm looking at. But these meters are for 30VDC and my power supply is 36VDC, 9.7A. I have seen on ebay meters with 50 and 100 VDC range and I will get the link and send it to you later.
the OP said:Another point is that these meters say that if the Amps are less the 10, no shunt is required so since my power supply unit is 9.6A, is it a good idea to have a shunt?
I don’t understand what effect will have the resistance in the negative power lead. Why my cnc would not like that?
the OP said:Sorry, signal conditioning, Hall Effect sensor etc. are not for me. I have a hard time understanding how to connect a simple Ampmeter, just imagine me go any further, lol
the OP said:Much appreciated for finding the above links and again thank you for your understanding
the OP said:If I was going to go with the Hall Effect etc. are the parts required easily available? Is the wiring complicated? In any case, if I was to read the Amps only from the power supply then we may not have to go this route.
For sure I don’t know what the Amps reading on the meter will mean but I guess if it goes up or down from the normal value then there is something wrong. Perhaps if you have the time you can explain to me what the reading of the Amps means. I thought I mentioned before that when I searched ebay for a Voltmeter I found much more combo meters (Volts / Amps) than just Voltmeters and I thought why not get a combo? They are almost the same price.
the OP said:Accuracy is not that important, we are talking here hobby stuff but of course accuracy has a wide range so lets say if the reading is out by 10-15% it should be ok. I would say that these meters should be able to do better than that
the OP said:Sorry for the link with the220VAC meter, I notice it later but I was looking on the wiring diagram only to see if I understand it
the OP said:So is it a good idea to measure the Amps only on the power supply unit?
I think there is like 1200 posts in that thread. It would take a significant time to read it. My link brought you in at the tail end.That was a very lengthy thread re Joe, good job
Sorry for the problems you had with the computer and flood, hope all is ok now. We have a powerful wind storm today here and the lights are flickering so I hope I don’t loose the power or burn something. Never went to Linux myself but I did give it a try years ago and decided to stick with Windows
Regarding your fiend in Australia setting the tool to the ORG position, on my previous cnc I used 3 limit switches and along with the Mach3 software (controlling the cnc) I was able to home the machine on every start
the OP said:Never order anything from Aliexpress, would you recommend them to buy the meter? I was thinking of this meter
**broken link removed**
Nicolas
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