Reading F-Series chips? (F120, F270, F270, F370)

[Tomblarom]

My university got an Stratasys F370. Since I created this resetter for the Dimension Elite for my former school, I was curious, if these chips can also be manipulated. Couldn't find anything about them.

I've two EEPROMS. One totally empty 0% and one on 2%:

On the EEPROM is the following written:

40+      40+
1101     1101
917A3    914A3

Some people asked for this as well:

• https://www.reddit.com/r/3Dprinting/comments/7abf7i/anybody_here_messing_with_stratasys_f123/
• https://haveblue.org/?p=1988&cpage=2#comment-1000

I found this EEPROM, which is pretty similar to which Stratasys uses:
https://de.rs-online.com/web/p/eeproms/7327539/

[luizrenault]

Any luck?
I have the same and wasn't able to access the chip using w1-gpio driver on a RPI.

But with some modifications, I can now access it. It says family 0C. Any ideas?

[galicminer]

@luizrenault do how did you get to read the Eeprom, my raspberry refuses to recognize it.
did you manage to get a dump of yours?

[pkoprov]

Any luck? I have the same and wasn't able to access the chip using w1-gpio driver on a RPI.

But with some modifications, I can now access it. It says family 0C. Any ideas?

Same stuff. What modifications did you make?

[shisva]

Hi any news on this topic ?

[Tomblarom]

Here somebody was looking for the same chip: https://www.reddit.com/r/AskElectronics/comments/oewa1l/help_identifying_ic_believe_to_be_some_kind_of_3/

There are chips which are very similar and have been suspectivly identified as DS2430 / DS2431:
40+ 1101 917A3 Stratasys F370
2D 1002 926B1 Discus Dental ZOOM 2600

It says family 0C

@luizrenault if you are correct, then it might be the same chip that was used in iButton 1996 devices: https://owfs.sourceforge.net/family.html Here is a disassembly of these devices: https://murdoch.is/projects/ibutton/

Analog_DS1996.pdf
DALLAS_DS1996.pdf

[Zannys]

Here somebody was looking for the same chip: https://www.reddit.com/r/AskElectronics/comments/oewa1l/help_identifying_ic_believe_to_be_some_kind_of_3/

There are chips which are very similar and have been suspectivly identified as DS2430 / DS2431: 40+ 1101 917A3 Stratasys F370 2D 1002 926B1 Discus Dental ZOOM 2600

It says family 0C

@luizrenault if you are correct, then it might be the same chip that was used in iButton 1996 devices: https://owfs.sourceforge.net/family.html Here is a disassembly of these devices: https://murdoch.is/projects/ibutton/

Analog_DS1996.pdf DALLAS_DS1996.pdf

Any news? i tried and don't even can't even make the raspberry identified IC

[Tomblarom]

But with some modifications, I can now access it. It says family 0C. Any ideas?

@luizrenault can you please elaborate how you did it esthablish a connection? How does the wiring look like?

[skylatian]

@luizrenault, any word on what those "changes" were? My university would love to be able to use our own filament in these machines.

[tkrsntr]

@luizrenault, I'm also curious about how you read the chip using RPI, what modifications are made?

[Kiano950]

Are there any updates?

[camrtn]

Any luck? I have the same and wasn't able to access the chip using w1-gpio driver on a RPI.

But with some modifications, I can now access it. It says family 0C. Any ideas?

When I set up the circuit with an Arduino and do a .search() with the OneWire library I am getting a family code of 3A.

According to this site, that family code is a DS2413. This is a 1-Wire Dual Channel Addressable Switch. I don't quite see how an addressable switch would be used as a spool cartridge tracker though.

https://owfs.org/index_php_page_family-code-lookup.html

EDIT:

Let me add that I am pulling up the middle pad (pin 2 of the IC) to +3.3V with a 2.7kOhm resistor. When I measured the DC voltage across the middle pin and left/right pin on the printer's actual spool bay, I read +3.3V.

EDIT 2:

I've been working away at this problem and have finally come to some definitive answers. The F370 (F123 family) spool eeprom runs off of 3.3V. I had to write a custom 1 wire library with special timing requirements to even get the eeprom to respond to my micro-controller. I was wrong with my original comment that the family code is 3A.

I can definitively say that the family code of the device is 0xC0. I am working on putting together a write-up of the process I've gone through and my solution to re-writing the eeprom's capacity.

[wowgrant]

If anyone is still interested, we have a solution. Not free, but it will save you alot of money. (you can use your eeproms forever)
Also there is a solution that will upgrade any f123 to f370CR. Please send me email with your questions to ssysusr@gmail.com

[MasterKamen]

Who has the solution? The lads in this thread or some other mysterious group that ripped off this project? Why is the source not published?

Screw this, I'll try finding the solution myself and it is going open source if I do get somewhere.

[luizrenault]

It is cheapest to get a K2 Plus than dedicating hours working on this matter.