Da Vinci to Ramps - bed thermistor question (Page 1 of 3)

Thanks. I saw that, but I'm not sure what I'm supposed to do with it. Do I create a new temp curve in Marlin, or is that post saying I can just use the same setting as the original firmware?

Also, that plot is for the hot end thermistor - is it the same as the bed thermistor?

Thanks again!

Thanks, Carl. I have the LCD, but I'm waiting for the 10p extender cables I ordered so I can find out if the LCD will work with the ramps mounted in the back of the printer - most things I've read say that the LCD doesn't do well with cables longer than 10 inches or so.

Whether it works or not, I will also have an RPi running octopi, so the machine will be wireless and not relying on my main computer. I just built a d-bot corexy machine, and it came out so well that I bought all the same electronics and that's what I'm installing in the Da Vinci. I find I don't use the LCD on the d-bot very much at all anymore. I'd like to have the LCD on the Da Vinci, but I'm willing to consider it optional if the longer cables won't work.

That's good to hear. Having the lcd is useful.

Can you tell me the answer to my original question? Can I use the original bed thermistor with the ramps?

Thanks again!

I also used a standard thermistor.   

I went through a few sets of cables before the screen worked. They must be shielded, no flat ribbons are going to work

I used standard 10 pin idc cables and they work fine. I did ferrite suppression cores near the board though. I also used a name brand for my ramps and lcd called Rio Rand. They are supposed to be the best.

I went ahead and changed out the thermistor. I drilled a hole in the carriage and put the bulb right in the center of the bed. It is currently under the fiber mat, so might be too insulated from the heater and bed. I'll find out once I get it up and running and will adjust accordingly.

So, I have all the mechanical stuff done and the wiring is complete. I downloaded a Marlin firmware from jeeplvr over on voltivo, but it won't compile. Does anyone have a more recent firmware - or would you recommend just getting the base Marlin and configuring everything from scratch? If I did that, I guess I would need the steps per mm at the least.

Any ideas?

I will search for your firmware. I replaced all the end stops with regular opto ones.

I'm sure I have the latest arduino - I just updated a couple of weeks ago. Can I have different versions on the same machine?

here is repetier that Im running on mine. optical end stops.   I think I had to use an older version of arduino studio to compile it.   I also have eeprom stuff disabled.  you may want to change that. 

http://www.flemcodesign.com/files/Repetier.zip

Thanks for the repetier, Robert, but I want to use Marlin, since I have it on two other machines.

Carl, on the Arduino site, I see a 1.5.5 Beta and a 1.5.6-r2 Beta. Is one of those the one I need?

I doubt if there's much difference between Repetier and Marlin as far as performance. I am just more familiar with the Marlin configuration files, since I've done a lot of tweaking on my D-bot CoreXY machine and Mostly Printed CNC. I've had Repetier on my DaVinci for a year and a half (flashed it two weeks after getting my DaVinci), but I only did any tweaking of it once or twice, way back when I first got it.

Okay, so after another hour of struggling, I deleted the library, redownloaded u8glib, and it loaded this time! I added it to Marlin, and now when I compile, I get this error:

Arduino: 1.5.5-r2 (Windows 8), Board: "Arduino Mega or Mega 2560, ATmega2560 (Mega 2560)"

ultralcd.cpp: In function 'void lcd_control_version_menu()':
ultralcd.cpp:920: error: 'lcd_implementation_draw_line' was not declared in this scope

Any help is greatly appreciated.