Hi I want to control my printer for some non-printing purposes. I'm using printcore from Kliment's Printrun to manually more the printhead around. However, I'm having trouble with timing. If I send a bunch of commands to the printer, and then want to determine the state of a repurposed end-switch, how do I know when the printer has finished its buffer of moves? As far as I can tell, I only get aby dnhkng - General
Hi, I am not using a hotbed on my Sanguinololu, and I would like to use the spare onboard mosfet to control some lighting. I can use a "M42 P4 S255" to turn on pin 4 on the header board easily enough, but when I edit the pins.h file and disable the hotbed pin (changing it to either -1 or 4), I still can't control pin 12 manually. I have also tried setting pin 12 as the fan pins, but I can't turnby dnhkng - Sanguino(lolu)
I found out how to add the extra endstop on my Melzi, thanks for the help guys! I was a bit surprised to find that the input pullup resistor is already activated on (AI 3 / D28)! In all the switch designs I have seen for repraps, you usually have to add you own pullup resistor and capacitor to mechanical endstops. What also threw me for a little while is that the on-board LED shares the D27 expanby dnhkng - Sanguino(lolu)
Thanks for the detailed advice! I was a bit concerned, as most expansion ports pins marked as DIO on reprap devices are also used for TX, RX etc. Also, there are several AIO pins, that I believe might also be used as digital IO, but I assume that these must be configured, and I'm not which file contains these settings. -Daveby dnhkng - Sanguino(lolu)
Hi, I am using a melzi, a sanguinololu-based board for my next reprap. I would like to use some pins on the expansion header for digital IO. In particular, I need two inputs, an emergency-off switch, and a Z-min switch. I would also like a digital output to control my ATX power supply. What do I have to do to configure the expansion pins to be inputs and outputs, so that I can configure them toby dnhkng - Sanguino(lolu)
Can a 1.3b be upgraded with a ATMEGA1284P-AU surface mount chip? Is there any special tips you could give for doing the chip swap and and bootloader flash? Thanks!by dnhkng - Sanguino(lolu)
The big question is can we fit the firmware for deltabots onto this chip, considering the extra ram requirements for the delta calculations. The modified Marlin and Repetier firmware for the Rostock don't seem to function on Sanguinololo (4K ram).by dnhkng - Next Wave Electronics Working Group
I would love to use the DIP LPC1114FN28/102 for a Rostock-style printer, as it need more power to process the delta coordinate system, and the design can handle higher speeds due to the light-weight printhead. Four stepper driver would be needed with this design. I would also like to see a design with just SD card printing, so we could do without a computer interface, once we had a programmed chiby dnhkng - Next Wave Electronics Working Group
I had a look at the ShapeOKO video tutorials, and there they use GRBL. When they start up the milling process in the tutorial, they first move the router head to the 0,0,0 position by hand. They can do that, as they use timing bests and pulleys. Is there a way to do homing and a reset of the coordinate system with GRBL? As I use a lead-screw system to move the axis's, I can't position them by hby dnhkng - CNC Routers, Mills, and Hybrid RepRapping
Hi CNC'ers! I am building a microCNC, and I have all axis hardware complete; I just need to add a dremel. In my test setup, I am currently using a Sanguinololu and Sprinter, and I seem to be able to control the axis hardware OK I have a plan for software/firmware, and I just want to see if its the optimum system, with advice from the forum. I plan to change to GRBL, as it is designed for CNC spby dnhkng - CNC Routers, Mills, and Hybrid RepRapping
I found a fabber here, so this ad is now closed! Davidby dnhkng - Job Shop: I need stuff made!
Hi Fabbers, I want to try building a Rostock 3D printer, and yes, I know the Rostock is still experimental, but I cant afford to build a Prusa just to make the parts to make a Rostock. Its the chicken and egg problem. Is there someone out there who could print the parts for me? Very preferably in Europe, as shipping costs can be high. Please PM me with a quote! Thanks in Advance, David PS, Iby dnhkng - Job Shop: I need stuff made!