XYZ Printing Da Vinci Jr (w) / Da Vinci Mini (w) Hacking (Page 24 of 31)

And i guess they dont validate the ids online as that service would quickly be flooded with generated data and over time rendering all spools, including legits, unusable.

Cool - i have some tags back from the early days when we didn’t know much yet - I wonder if they work. Off to the wizard, aka. the big box of misc electronics :-)

Yes, however, I am kinda stuck - One library lets me read the tags, but does not offer authentication support (so, obvious, it can read all pages on non-encoded tags - but not the xyz tags); the other library has authentication support, but seems to have trouble identifying any tags (i suspect it requires some weird undocumented wirering).

Ive wired up a Mega (for now) and a squared PN532 set to SPI mode.

Do "we" have any .ino files that contains "it all" or a favourite library ?

EDIT: I found an unresolved commit to the adafruit PN532 library, that does the job :-) So, I understand, its good practise to share all the keys we've got, right? Or is that not usable any more? Do we have the nfckey-code converted to Arduino C? It'll take no time to convert, I'll gladly do it.

nice, its adopts basically 1 to 1, for the exception that bitshifting in arduino are based on the variables type, not the receiving variables type, so the v1/v2 calculations just had to be typecast, and everything works

neat !

Do you have an idea of what needs to be done atm ? are we done, so to speak ?

In reality, do we really need that?  With nilezon's code and the 10 cent paper tags, cgrillo's open source code, what is gained?

I think be able to downgrade firmware to unencrypted version is important step for hack the firmware to disable NFC chip checkpoint, also can provide a backup when attempt to port Marlin/Repetior/RepRap. It will seems very risky to flash the firmware if people can not go back to stock.

Why upgrade the firmware?  The new features implemented are few and far between.   But, that is just my opinion.  I am happy with my Jr now that we have these tools available.  I just wish it would increase speed, but that's another discussion.  Igot spoiled by my delta.

I think Jr. operate at over-extrusion mode, and the print quality is more like 0.5mm nozzle quality. So although the print speed is very slow, but the print job is done in very acceptable time. I did RAMPS conversion and the print quality increase and took a lot longer if I print at the same speed.

I think there are both pros and cons for the over-extrusion printing method, if you are looking for higher print quality or accuracy, stock firmware is not the best option. When I print parts that need to fit each other, print with stock firmware require a lots of post printing process to make them fit, sometimes I have to change the design to make them fit if printed with Jr.

I hope disable over-extrusion mode by use open source firmware, we can achieve the quality and speed of RAMPS converted Jr. without have to go though all those painful wire making process.

Check this out http://www.soliforum.com/topic/16946/fr … ank-ntags/ it will make your life muh easier.

Hahaha! Finally, following the instructions, I build a Arduino nano+PN532 hardware solution.  Reset a blank NTAG213 sticker as 300m with cgrillo's software(recognized as 300/200m, page9 00353637). Davinci mini w start printing!

Thanks to cgrillo, Bozotclown1970, Nielzon's great works, Xenolphthalein, modfreakz's wire figure, and any other information I found in the forum!!
Thank all of you for making it so easy, it just take me less than 2 hours afterI get Arduino nano+PN532, including soldering works and looking for some Arduino hardware/software information. 

Anyone has a 300 meter hex dump of NTAG ? Im currently just mirroring one of my own 200 meters - but if i can save 50% more tags, well.. I'd rather do that My understanding was that the meter left changed some of the 20ies pages - according to some formula.

Yearh, but im copying the entire thing tbh.. will work with garbage-data on the original NFC tag as well.

Were there any special way of calculating what to put in the length-pages ? Do you by any chance know what thread its in?