I was really impressed when I saw the Prusa i3 MK3 has the ability to recover a print after both mains power loss and a disturbance in the X or Y axis. Ever since, I've been wanting to implement that on my generic i3-based printer. I'm willing to replace my driver board, and recently saw the Einsy RAMBO 1.1 is for sale by ultimachine.com. To my knowledge it's the same board that drives the Prusaby paulr - Firmware - Marlin
QuoteJustSumGuy unless your worried about people accessing it physically like plugging in the usb to their laptop..... Yes that is what I meant I'm afraid. Thanks all the same.by paulr - Firmware - Marlin
I'm installing a public-access 3D printer, and would like to ensure it's only used via a single computer. Otherwise, mischievous users could connect their own laptops and make the printer do things it's not meant to do. Perhaps the simplest implementation of this would be to add a 'PIN' function, where the printer has to be passed a specific G-code before unlocking and processing more instructioby paulr - Firmware - Marlin
Yes, that works, I think it's a temporary hack as it reduces the temperature returned to an integer.by paulr - Firmware - Marlin
Thank you all for your efforts! I'm having some teething troubles (see M105 post in this forum) but really appreciate all the hard work the devs have put in, and look forward to seeing what it can do!by paulr - Firmware - Marlin
I'm running the latest version (1.1.x) on a RAMPS 1.4 single extruder setup. The board boots up and displays the expected information, including correct temperatures for the extruder and bed, updating every few seconds. I can connect using a serial terminal, and I'm able to change the display with a 'M117 Hello' command. However, when I try an M105 command, the response is: 'ok T: ', then abouby paulr - Firmware - Marlin
Hi. I've seen the thermal runaway protection activated on my printer when there's too much cooling at the hotend - presumably the firmware judges the sensor is not giving a high enough reading to account for the energy being put into the element, and shuts down in case the sensor is faulty, to avoid overheating. My question is, does the same happen in the opposite case: when the sensor reads toby paulr - Safety & Best Practices
Thanks, that helps a lot. I also had to switch to the RC version of Marlin, as the stable release doesn't have the MKS definitions.by paulr - General
I own a printer that uses a RAMPS clone with 4 power outputs labelled E0, E1, Fan and Bed. I see there are other RAMPS clones with a similar design. I'm trying to set up the Configuration.h correctly, and the first hurdle is the '#define MOTHERBOARD' statement. The relevant options in boards.h are as follows: BOARD_RAMPS_14_EFB // RAMPS 1.4 (Power outputs: Extruder, Fan, Bed) BOARD_RAMPS_by paulr - General
Hi, I have a question about the internal workings of stepper drivers, such as the StepSticks found on RAMPS boards. I know the drivers modulate power through the stepper coils to achieve stepping and microstepping of the rotor. But do they do this using linear constant current circuitry, essentially dropping the voltage supplied to each coil by burning off excess power as heat, like a linear reby paulr - RAMPS Electronics
Hi, I'm a new user of Slic3r, and have noticed a problem with my builds when they have a gently sloping roof and a low density infill. The picture I've attached demonstrates the problem. Only the affected layer, and a few layers below it are displayed, for clarity. The top layer in the picture contains the beginning of a gently sloping roof over part of the object. As you can see, it extends outby paulr - Slic3r