Thank you, that is a huge help. Your advice earlier this week led me to upgrade the firmware to 1.17e, so I think we're good on that. X and Y are now homing happily. The red LEDs on the Duet blink briefly as the axis touches the switch, first quick, then slowly. Happy, happy. I have clearly not found the right arrangement for the Z axis. The machine I am commissioning does not have an electroby MacMarty - Firmware - mainstream and related support
BTW, the "big picture" for homing on this machine is that there are microswitch end stops on X, Y, and Z. If there is some definite way that things should be wired up for this, I would be very grateful for any guidance. (I have seen some words implying that a limit switch on Z should be wired to the ... E0 end stop pins?? )by MacMarty - Firmware - mainstream and related support
OK, let's get it out of the way first - Why would I put a $130 controller card onto a $200 printer? Because (a) I managed to fry the closed-source FPGA-based controller in the Mini Select while trying to get WiFi working on it, (b) Monoprice will not sell replacement controller cards, and (c) I had the Duet in hand from another project that never got completed. I'm closing in on having everythinby MacMarty - Firmware - mainstream and related support
Thank you both! Much better so far. (In fact, the endstops work as needed - no need for M574 now! ) Cheers!by MacMarty - Firmware - mainstream and related support
Noob to RepRap Firmware here. I'm setting up a Duet 0.6 for a Monoprice Mini Select because I fried the OEM controller. (FPGA closed source. Bah.) At this instant I'm starting my way through the Duet commissioning process, interactively through the through Arduino Serial Monitor. I downloaded the SD contents from RepRapPro, though it appears that the same version is available on RepRap directly.by MacMarty - Firmware - mainstream and related support
Sorry, no progress lately on the code changes. I've studied it, but have not had the time to implement and test properly. Work's getting in the way of my fun!by MacMarty - Developers
Quotenicholas.seward Keep in mind that they probably mean a 1:1 CoreXZ and not a 3:1 one. I really threw a wrench in the mix by not making it 1:1. I think a lot of us appreciate the way you actively push the envelope. No worries. SO! The news for today is that with a bit of fiddling, I've gotten MarlinKimbra to move all three axes, and heat the nozzle, and extrude some filament. (Yay!) I'm goby MacMarty - Developers
Hello! I am delighted to see Marlin firmware that includes support for the CoreXZ configuration, on Ramps 1.4. I am building the most current publicly-revealed version of Nicholas Seward’s CoreXZ. It has several specific characteristics that are out of the ordinary, and I am wondering if they are currently fully supported. Here is what I -think- I see in MarlinKimbra so far. a) N.S’s implemenby MacMarty - GCODE, Software e Firmware
Hi, Kids! While groping around the web trying to sort out my Y-axis issues, I discovered that there is a new Marlin branch that specifically claims to support CoreXY -and- CoreXZ! At this instant I'm trying to sort it all out so as to work with my machine. (Can't figure out how it knows CoreXY from CoreXZ, and need to set endstops to N.O., but that's all part of the learning process.) I thoby MacMarty - Developers
SO CLOSE, but yet so far.... Everything is built, and powered up, and working (yay!) -except- for the Y axis, which is not even powering up. When I connect to Repeater-host, I can drive the Z axis up and down, and X back and forth, which (I believe) means that I have the right set of code from Github, and that software is mixing the X and Z axis commands properly. But the Y axis - nothing. Theby MacMarty - Developers
I'm building a CoreXZ printer as designed by Nicholas Seward. A fundamental construction method is the use of nylon zip ties to fasten linear bearings to the frame. I've obtained some sample igus RJ4JP-01-08 Drylin bearings, hoping to eliminate the rough motion and noisy movement produced by cheap LMU88 linear bearings. When I place the Drylin bearing loose on an 8mm rod, it glides as smooth asby MacMarty - Reprappers
Hi, @jnj. I have STLs for the effector and the bed tensioner mount, I'll send them offline. Keep in mind that @nicholas.seward has indicated that there may be other approaches forthcoming for the effector.by MacMarty - Developers
Hi, Jeremy - I can't presume to speak for Nicholas's broader vision and plans, but I can tell you about my own experience to date. The newest version of CoreXZ files (downloadable zip here) does appear to be set up for 5mm sheet stock. I've been successful in building a frame from these files, using some nominal 1/4" plywood that actually measures 5.4 mm, and everything fits together just fine.by MacMarty - Developers
Today I'm tied up in a knot. Can someone point me in the right direction? I'm partway through my CoreXZ build, using the design files that @Nicholas.Seward published in Feb 2015. Frame construction is from 1/4" plywood. I had to do a little fiddling with the front and rear panels to make them fit in the local Trotec laser - I divided them in half vertically, and nested the halves together. I thby MacMarty - Developers
It strikes me that by building a longer bed, it would be entirely possible to print complete Frame Sides, Frame Bottom, and Frame Top. Not just as flat panels, but with included ribs that would enhance stiffness. Yielding a large-volume printer with a high proportion of printed parts. (Seemingly a sought-after goal within the RepRap paradigm, right? Front and back might need to be done in sectioby MacMarty - Developers
Nicholas - I've looked at your Inventor files, and studied the YouTube videos, but I am unable to spot any suggestion of end stops on your machine. Are they well hidden, or non-existent?by MacMarty - Developers
Quotemaboo Why so complicated? You can print out a dozen parts at the same time if you use a plate with a dozen extruders all in one head.with the appropriate distance to each other. they often have 6 or more tools in one head . I'd argue that a significant problem with that approach is that it is not generalizable. What happens if you need to print 6 15x100mm objects one day, and five 18x100mmby MacMarty - Polar Machines, SCARA, Robot Arms