Author Topic: Difference in power X / Y  (Read 557 times)

beikeland

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Re: Difference in power X / Y
« Reply #15 on: November 11, 2016, 11:30:41 AM »
Masuring the voltage at the 12v fan connector while running a cut with and without the laser plugged in should be enough to reveal any issues with the supply I think. If the 12v fan connector doesn't differ then it should be okay.

toromand

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Re: Difference in power X / Y
« Reply #16 on: November 12, 2016, 11:16:34 PM »
At the moment I am using a standard PC PSU (as I did have problems with the supplied one)
I did not really measure the Voltage while running (and I'm even using the 12v fan connection for a fan :)) I might do that.

Talking about motor current(s) I did not really change anything on the controller (L7) to adjust. I see there are two "knobs" for the purpose. Also my speeds/tension  seem to be OK, circles are circles and I have repeatability. I will dig out a multimeter one of these days I guess...

toromand

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Re: Difference in power X / Y
« Reply #17 on: November 13, 2016, 12:43:11 AM »
Speaking about the laser module, mine is 5500mw with two wires only (not having a separate power line) so it is connected directly to the Eleks board two pin connector. Is this a problem? I can see some of the powerful modules on Aliexpress actually have a separate power feed.

The power control works, but do I really need to change something here? 

Zax

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Re: Difference in power X / Y
« Reply #18 on: November 13, 2016, 04:18:29 AM »
I think your problem is just the current draw exceeds the PSU, especially if you have a secondary fan.

toromand

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Re: Difference in power X / Y
« Reply #19 on: November 13, 2016, 10:00:55 AM »
I think your problem is just the current draw exceeds the PSU, especially if you have a secondary fan.
This is exactly the reason I'm using a regular PC PSU that should be able to provide near 20 Amps
I will also try pushing some more air :)

ggallant571

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Re: Difference in power X / Y
« Reply #20 on: November 13, 2016, 07:31:59 PM »
Did you adjust the current limits on the stepper motor driver boards?
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toromand

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Re: Difference in power X / Y
« Reply #21 on: November 14, 2016, 01:57:24 AM »
Did you adjust the current limits on the stepper motor driver boards?

No, I said earlier, It is on "default" settings, just as I got it from GearBest. (I would say I'm not missing steps on my motors, so I did not touch it)

toromand

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Re: Difference in power X / Y
« Reply #22 on: November 14, 2016, 01:58:55 AM »
Well, in the end it is not such a problem, just an annoyance... I will just go one more pass when cutting plywood :)

ggallant571

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Re: Difference in power X / Y
« Reply #23 on: November 14, 2016, 06:47:42 AM »
I have a GearBest A5 unit and both stepper motor drivers needed adjustment. It is a 5 minute procedure. There are no "defaults" from the vendor, just random settings.
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