Author Topic: no max laser power  (Read 261 times)

beusx

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no max laser power
« on: April 19, 2017, 05:05:49 AM »
I reinstalled the t2 laser program but now the laser does not go at full power. i put 255 for the max power but the laser do not work well. i try the original program ( eleksCam) , and the laser go to the max power. ??? what can i do? tnx.

nottingham82

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Re: no max laser power
« Reply #1 on: April 19, 2017, 05:59:25 AM »
when you installed t2 did you flash the firmware or did you only install the software?
Laser: 2500mw A5 eleks maker
OS: Windows 10 all in one pc
Software: T2
http://www.gearbest.com/3d-printers-3d-printer-kits/pp_290386.html Paid $160 in 2016

Zax

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Re: no max laser power
« Reply #2 on: April 19, 2017, 09:22:11 AM »
I'm guessing not. You can set T2Laser max power to 1000 and see if that works with whatever firmware you have but installing my Grbl 1.1e gives you more features so I would suggest it if possible.

laser_cutter

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Re: no max laser power
« Reply #3 on: May 29, 2017, 11:23:55 AM »
I experience the same problem. Is 255 the default max power? 

Can 1.1e be installed on the Mana SE boards? I get an error message when I try to do so. EDIT/UPDATE: 1.1e will load in version J
« Last Edit: May 29, 2017, 11:25:21 AM by laser_cutter »

Zax

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Re: no max laser power
« Reply #4 on: May 29, 2017, 11:43:14 AM »
Yes, 255 is the default. You can change it to whatever you like using 30=xxx but the software must match the firmware.

Yes, the Mana SE like any AVR based board (all Eleks except the IV) support Grbl firmware, including 1.1.

laser_cutter

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Re: no max laser power
« Reply #5 on: May 29, 2017, 03:07:40 PM »
To attempt to explain it to myself like I am 5.

When viewing the laser power in 1.1e is the flashed firmware, the laser power is 0 and 255.  255 is default value, and doe not mean maximum power of the laser.

eleksmaker uses to 0 - 1000 for laser power; 255 would = 25% power.

In T2laser what % does 255 represent?
« Last Edit: May 29, 2017, 03:09:36 PM by laser_cutter »

Zax

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Re: no max laser power
« Reply #6 on: May 29, 2017, 03:19:21 PM »
Is that a trick question? It would depend what values you have set for laser max and $30.

Let's assume your firmware is set to the standard Grbl values $30=255 and $31=0, so laser power is 0-255.

If you set the software to max 1000 (which you can do with T2Laser) then you would get full power at 255 or higher values.

If you set the software max to 255 then 255 would be full power.

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Now, if you change the firmware to $30=1000, so the power range becomes 0-1000.

Then set software to max 1000 you would get full power at 1000, and ~25% at 255.

If you then set the software to max 255 you would never get more than that ~25%.

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I'm not sure if the Elekscam software and firmware (modified Grbl 0.9) are adjustable or fixed to 1000, but if you're using T2Laser you can load the Grbl 1.1e which performs better and provides more features. If you want to switch back and forth, then you can use their firmware (it's also included with T2Laser) and set Laser Max to 1000 and everything will work correctly.

laser_cutter

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Re: no max laser power
« Reply #7 on: May 29, 2017, 04:05:38 PM »
Is that a trick question? It would depend what values you have set for laser max and $30.

Let's assume your firmware is set to the standard Grbl values $30=255 and $31=0, so laser power is 0-255.

If you set the software to max 1000 (which you can do with T2Laser) then you would get full power at 255 or higher values.

If you set the software max to 255 then 255 would be full power.

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Now, if you change the firmware to $30=1000, so the power range becomes 0-1000.

Then set software to max 1000 you would get full power at 1000, and ~25% at 255.

If you then set the software to max 255 you would never get more than that ~25%.

----------------------------------------------------------------------------------------------

I'm not sure if the Elekscam software and firmware (modified Grbl 0.9) are adjustable or fixed to 1000, but if you're using T2Laser you can load the Grbl 1.1e which performs better and provides more features. If you want to switch back and forth, then you can use their firmware (it's also included with T2Laser) and set Laser Max to 1000 and everything will work correctly.

Sorry, given the various firmware available in T2 I should have specified.

In T2laser, with firmware 1.1e flashed $30 and $31, what % does 255 represent?

Looking at the parameters in 1.1e

Connected COM3 115200
Grbl 1.1e Ready
$30=255 Max spindle speed, RPM (255)
$31=0 Min spindle speed, RPM (0)


255 represent max power in the 1.1e firmware. And 255 represents max power in the T2 software. And if 1.1e is flash and default values are kept, setting power above 255 in T2 is of no affect as max laser power is achieved at 255?

Zax

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Re: no max laser power
« Reply #8 on: May 29, 2017, 04:23:28 PM »
That's correct, using all the defaults 255 would give you max power. T2Laser won't generate G-code higher than laser max but you could enter higher in the manual laser box but of course you'll just get the same result.