Interesting - but how much accuracy do you need? If you're content with a bit of drift, then it may be possible to add something to the firmware that will log how many clock cycles it's been through then update a counter every time it rolls over (with some scaling to get it into hours/minutes/seconds). Store that in EEPROM and you've got an hours counter without adding any extra hardware or cost,by majic79 - Firmware - mainstream and related support
You've got the z axis endstop inverting logic - if it's using the same logic as your other endstops (0 - endstop not hit, 1 - endstop hit) then these want to be set to false const bool Z_MIN_ENDSTOP_INVERTING = false const bool Z_MAX_ENDSTOP_INVERTING = false The firmware seeing that both min and max endstops are hit, so it's not trying to move the Z-axis (it probably ought to tell the operatinby majic79 - Firmware - mainstream and related support
And last night I debugged my Gen7 electronics controller board and have it working in all four axis (X, Y, Z and Extruder), it homes correctly as well, so now I have to figure out the print volume and calibrate correctly - I'm wondering how much microstep I should run on the controllers to give good resolution and acceptable speeds, or if I should switch to an ATX power supply (as I have a few ofby majic79 - FoldaRap
Ahh, never mind, I found a tiny solder bridge to earth that was preventing it coming on, I went over my joints with an inspection glass and fixed a couple more that I'd missed on first inspection - all good now, would be nice to have some solder mask, but hey ho! It works and moves and heats up the head, just a reduced size hotbed to finalise for my foldarap and I'm a happy makerby majic79 - Next Wave Electronics Working Group
Well, I checked the electronics, it's good (continuity between pin on the chip and the resistor, plus the right resistance through that and onto the gate pin) and the firmware seems right (pin configuration looks good as far as I can tell). The pin doesn't get driven when I give it the command, so I suspect either the AVR is goosed or there's something wrong with the underlying pin configurationby majic79 - Next Wave Electronics Working Group
Hi Traumflug, I'm primarily a software engineer (hardware is more of a hobby!) and I couldn't identify any issues looking at the pins.h file in marlin firmware (I've used "#define MOTHERBOARD 13" which should select Gen7 V1.4+ configuration and the diagrams I've seen for arduino pin configuration match that of my schematic and board) I'll have a closer look at the pin configuration for 1284p wheby majic79 - Next Wave Electronics Working Group
Not long ago got my BBB and I'm currently getting my copy of Gen7 electronics working, I'm planning on cutting my own cape for BBB based on Gen7 and see if I can drive Gen7 with I2C, if I can, then the next step is using pronterface for the print drive on BBB - simplesby majic79 - Controllers
Hi, I've mainly been involved with PIC development (etched a few boards) and as I've just built a Foldarap, I decided to have a go at driving it with Gen7 with Marlin firmware. I've redone the design in KiCad (it's what I'm familiar with) and used molex headers everywhere (it makes it easy to manage) and screw terminals for the power (using a 250W fixed 12V power supply). I'm using an ATMega1284by majic79 - Next Wave Electronics Working Group
Hi, I just thought I'd share my build I've recently acquired an interest in 3D printing (when a friend of mine brought his delta round to me to repair his controller board after he blew up a MOSFET) and after some research, decide that the Foldarap is the one for me. I've sourced all the parts myself (using the BOM from the wiki site) and used a lower cost 250W LED strip light power supply (12V)by majic79 - FoldaRap