Right, so i'm tryin to get my printer a smidgeon over 300c. I have an e3d v6, so i bought a PT-100 thermo-something and the booster board from e3d. Go to install it...and i'm lost.
Here's what i've done:
-I've isolated a 5v, GND and signal connection on the board
-Created a breakout cable from 2 servo leads (Why there isn't one in the kit is sort of beyond me).
-Attempted to attach the signal wire to the T0 input (tried both the ground and signal, not knowing which was which), no output (was stuck at 163c when under thermistor setting 8, when the setting was corrected it read 0).
-Attempted to attach the signal wire to the Analog out pin 3, the top left-of-center pin, board resets when i do this.
-Modified the firmware in both cases to redefine TEMP_0_PIN as 0 for first attempt, then 3 for second
-Set thermistor type to 13
I'd GREATLY appreciate any input on this, as i'm sitting here nervously trying to not fry my board, and i'm at a bit of an impasse. Passive-aggressive links to threads where this has been answered will also be appreciated.
It's a pretty simple modification, assuming you've got a good command of Google-fu.
So, as a start:
The amplifier board gets connected to Vcc (the 5V reference, or you could use the 5V rail on your PSU, it's not too picky so long as the 5V is stable), a signal pin in the EXP zone (needs to be analog in), and a Sig-ground again in the EXP zone. At that point, the PT100 is plugged into the amplifier, and away you go (note, if temps are wildly off, swap the sig-ground and signal pins) You need either the temp table (I converted mine from marlin) or repetier .92.
I connected signal pin to Analog in, specifically pin 3, which is located in the top row of the analog ext section, second from the left, right next to the ground.
I also used the following table in the firmware (as seeme didn't support .92 at the time)
#define USER_THERMISTORTABLE1 {\
{227*4,1*8},{236*4,10*8},{245*4,20*8},{253*4,30*8},{262*4,40*8},{270*4,50*8},{279*4,60*8},{287*4,70*8},{295*4,80*8},{304*4,90*8},{312*4,100*8},{320*4,110*8},{329*4,120*8},\
{337*4,130*8},{345*4,140*8},{353*4,150*8},{361*4,160*8},{369*4,170*8},{377*4,180*8},{385*4,190*8},{393*4,200*8},{401*4,210*8},{409*4,220*8},{417*4,230*8},{424*4,240*8},\
{432*4,250*8},{440*4,260*8},{447*4,270*8},{455*4,280*8},{463*4,290*8},{470*4,300*8},{478*4,310*8},{485*4,320*8},{493*4,330*8},{500*4,340*8},{507*4,350*8},{515*4,360*8},\
{522*4,370*8},{529*4,380*8},{537*4,390*8},{544*4,400*8},{614*4,500*8},{681*4,600*8},{744*4,700*8},{805*4,800*8},{862*4,900*8},{917*4,1000*8},{968*4,1100*8} }
I also recomend using a shielded cable for the signal/ground set of wires, if not also the VCC, and keeping the PT100 amplifier board up top, as this will reduce the errors and interferance. If you're using the 5V rail on the power supply, please attach a small resistor or other load to it (such as a USB fan) to ensure the power delivered is stable (Only applies to older ATX based machines)
Let me know how it works.
Machines:
Rostock Max V2, Duet .8.5, PT100 enabled E3D V6 and volcano, Raymond style enclosure
Automation Technology 60W laser cutter/engraver
1m X-carve router
Just got done with the mod, wound up changing EXT0_TEMPSENSOR_TYPE to 1, and changing the table to the data provided. Table seems to be extremely close, was getting 340 at 2.43v, so .01v difference. Changed the pin as you said, and boom, working like a charm. Thanks!
Yeah. I really ought to see if I can't write an installation guide for the Rmax for E3D's wiki, and claim the credit for either more PT100s or more socks. Never have enough socks. The procedure really isn't that hard, and I could probably even get a well designed enclosure for the amplifier together now, given how far I've come since I started.
Machines:
Rostock Max V2, Duet .8.5, PT100 enabled E3D V6 and volcano, Raymond style enclosure
Automation Technology 60W laser cutter/engraver
1m X-carve router
I was considering writing a guide, considering i'm dong a second install tomorrow, but i think you have a bit more of a grasp on the subject, so go for it.
Hey guys! I'm just now swapping the temp sensor out on my Rostock Max V2 to a PT100 and I'm having issues hooking up the amplifier board. I'm using a Rambo 1.2 with Repetier 1.0.3.
I have the 5V plugged into the positive pin on the PS_ON (next to the main power supply terminals) and the Signal plugged into the Analog pin section just under the LCD board pcb adapter - second pin from the left on the top row. I'm not super sure where to plug in the 0V pin from the board...but I've tried doing so next to the analog signal pin in a couple spots.
My PT100 reads -18 or so and doesn't move much. Any help would be appreciated thanks! Either a diagram or a super detailed location description for where things need to be plugged into would be most helpful.
I've also gone into the firmware and changed the temp pin from 0 to 3, and copy/pasted the previously mentioned temperature table into the appropriate spot but with no change.
