Yep, very happy bunny at the moment. All is working well. Homing switches arrived today so I'll get those fitted.
Had great success cutting that dxf in 4mm ply. 3 passes at 150mm/m. Surprised it did it so easily. Air jet really makes a difference.
Hi Zaxs, I did load 1.1e at the beginning. I didn't realise that "Configure eleksmana" over wrote the firmware, it certainly wasn't intentional. I assumed it might be for table size, laser type or motor types etc. So the answer is to reset everything to default, reinstall 1.1e and DON'T select that option:-)
I've checked as suggested by Zax and here is the result:
1/ The lens assembly seems simple and solid. There is no loose part as I can see (see attached image)
2/ Video clip showing the laser is focussed but it is weak. Also as I indicated from the beginning... I don't have the "weak light" anymore. Each time I press the weak light button the LED just flashing red but there is no laser at all.
Here is the video link: https://drive.google.com/open?id=1nezO3MtnYctH9IdM1vvM6u7sqMnOHFD0!
@Anima You can use another Arduino as a programmer, and using Arduino IDE you can load the boot loader. I suggest to use OptiBoot as it's smaller, although technically for the Uno it works well with the Nano as well since they share the same ATmega328p chip.
There are many good resources explaining the process, so I won't try to repeat that here. Here's some good information to get started:
@Zax I actually tried to use 0.9j, and made the changes as mentioned above, it still does not recognize it .
What is really BAD is the laser is turned on on reset, full blast .. and this is a known bug for many moons.. it is to me a major flaw, and to rectify it would cost almost nothing (pull down resistor), a 0805 could be soldered on the 4 pin connector to fix this. Cannot understand why they keep producing this controller without the modification, it is dam serous !!. In the end I added a FET to invert the TTL signal, with a 1K pull-down on the 4 pin connector (PWM to GND) it now works. Thanks for you input.
@davidwoodworker There are many options for software, I wrote T2Laser as an alternative and provide support for it as well as constant development. EleksCAM is obsolete (only works with the older firmware) and unsupported (has known bugs that aren't fixed).
The Nano is a standard device with many alternatives, they are plug and play replacements. I have used Geekcreit, HiLetGo and others with good results - these all use genuine ATmega328p microcontroller's which are more reliable than the Chinese copies.