Hi,
I am a bit confused about the wiring. These 2 cables came with the laser unit. I can attach the longer one to the controller board and laser, but what am i supposed to do about the shorter red/black cable?
Do i actually need to connect that shorter cable? There is only one white socket on the laser. If i understand it right - the longer cable connects laser and the board (marked as a “laser” socket) and if i wanna power up the laser without the board i can use second one - shorter cable. Is this thought correct?
P.s. the red wire on that shorter cable has only one pin. What is this wire for? If its for fan how do you connect it?

Thanks in advance.

@Zax
Would this one work for me?
https://www.buyapi.ca/product/atmega328p-au-arduino-compatible-nano-v3-0-r3-board/

They say its with bootloader and its soldered.

@LogansRun basically i just have to swap mine broken one with the new nano(compatible) one? Nothing else?
No extra soldering etc?

@Zax
zax please can you tell me if this is nano with genuine atmel or just cheap chinese knockoff?
http://u.cubeupload.com/redcore/IMG20180524011333.jpg
i know i see the logo but you never know.

i tried to change usb cable - didnt work
i tried to use arduino ide software - didnt work
i tried another computer - didnt work
i tried to use xloader - didnt work

honestly if this is genuine atmel i have no idea what is going on then. i just cant upload any grbl no matter what. btw when connected, that red light doesnt blink at all. it is fully on. is it good thing or bad?

in arduino ide i get this error
avrdude: stk500_disable() : protocol error, expect =0x14, resp = 0x95

any idea?

thanks in advance!
rob!

what way can i reset nano please?

@Zax
Thanks a lot for quick response. Tbh i am pissed. You buy something, it works once and then it doesnt because chinese dont give a s*it about quality.
Was browsing amazon and i am wondering if this arduino
https://www.amazon.com/Elegoo-Arduino-ATmega328P-without-compatible/dp/B0713XK923/ref=sr_1_3?s=electronics&ie=UTF8&qid=1527121494&sr=1-3&keywords=Arduino+nano
Would work. If yes all i have to do is just swap the old broken one with the one linked above? Or is extra soldering required?

The thing is i really wanna solve this issue because i get “connected and grbl ready” message now. But one day.... and i am screwed

P.s. i have to correct one thing. It was “grbl-f xy home sv” what i tried to flash over grbl-e. And it failed. Well failed - it says grbl-f is ready so... but i couldnt reflash it again with “grbl-f pwm” or anything else.

@Zax
hey zax, i just purchased your software yesterday, i installed right away grbl “e” from the menu. All worked just fine, got a message that grbl e is ready etc. i tried moving motors by using arrows and it worked well.

Then i tried to flash grbl “f” high freq pwm because the laser i ordered is ttl/pwm. I am very new in these things so i dont know if that laser would benefit from that grbl version, but i tried it. I thought that i can reflash grbl”e” back after. Boy i was wrong. No matter what i try, i keep getting “upload error 1/1” and cant see any flash progress, just another black window with some weird letters and numbers appears with the error message right after.

Funny thing is that i can still connect laser, it still says that grbl “f” is ready and i can use laser.

Is there ANY way how to reflash the controller board with grbl - e if i will experience any problems with current f version? Btw clear eeprom did not worked. Got the very same upload error 1/1 message.

Thanks in advance!
Rob.

Well those safety boxes are surely great but unfortunately this doesn’t work for me due to very limited space : -)
I have to make some enclosure around the laser only. Not over the whole frame.

Just wondering has anyone tried to make a safet enclosure around the laser?
If yes what material has been used and where to get it.
Thank you.

@EleksMaker-Z
Well i can not try it. Thats why i am asking on this forum. I dont have this laser at home.
Is possible to give me some specifications about 5his laser please?
Like resolution, accuracy, diameter of perfectly focused laser (if possible) etc.

This photo shows what i expect from this laser. The question is if this laser is capable of such accuracy.

Thank you in advance.

Hi guys. Thinking about getting eleksmaker laser 5500 for cutting particularly mylar and cardstock stencil for airbrushing. What is the accuracy of eleksmaker laser please? I need to cut very small details. Even less than 0.5 mm. Yeah i am trying to do super detailed stencils. Would it have problems with mylar and cardstock?
Mylar doesnt have to be super transparent. I dont care about that.

Thank you in advance!
Rob.