Aha, answered my own question. That switch, when ON, provides 5v to the Nano from the Mana's onboard regulator, but it's normally off to allow power from the USB. So yes, you can power everything with the 12v power input.
@WAFI I'm not really sure what problem you are having but Inkscape can save DXF files, these can be loaded into T2Laser to run an EleksDraw. It supports multiple pen colors, single line tracing and an optimizer, all of these features really help with the drawing machines.
To access the Downloads folder, launch the default File Manager app and towards the top, you'll see the “Download history” option. You should now see the file you recently downloaded with date and time. If you tap on the “More” option at the top right, you can do more with your downloaded files.
This is usually caused by backlash (a symptom of loose belts), circles are a good way to check for backlash as typically the ends will not connect if you have this issue. T2Laser includes an option to disable bi-directonal mode which is another good way to check if backlash is the problem, as when the laser always scans left to right it will effectively mask the issue.
@Kevin-Harte As I posted in your other thread, wrong firmware. So I'm guess you have an EleksDraw and uploaded Grbl 1.1 which isn't compatible with these CoreXY systems. In the custom firmware load the Eleks Mana and then configure it with the menu to EleksDraw and everything will work correctly.
Elekscam has many reported issues, I suggest you use other software. T2Laser is a fully featured program I wrote as a replacement for the Chinese software, and using my default firmware you will get much better results.
Ah ok. No, even disconnected from the Mana board, the power supply box light is not coming on. Could be the power supply, or a faulty Australian adaptor. Narrows things down, thanks very much for your help. If I get it working, I'll buy a T2Laser license for the benefit of this support alone.
@Binoj-PJ Send me the SVG (support at t2laser.org) and I will save as DXF, or you can do that in Inkscape. To get a natural looking signature it needs to be created as a continuous polyline the way you would write it, if you simple scanned the signature it's going to need some "fixing" before it will do what you want.
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