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Screw driven workbee calibration checked for steppers @199.50. I have just stripped all axis and checked wheel adjustment and lead screw...
I have them mounted back to back with fan blowing between them down the cooling fins . Havent noticed a performance drop yet dropping voltages down .
Must be heat related , below 32v was fine at 32.2v it starts having issues .
The fact that everything was fine got me thinking so i reached out to David from Sharp CNC who uses tb6600 in his builds . TURNS OUT I HAD THE...
The strange thing is the tb6600s were fine on the first night when i tested with just a x carriage on a vrail . Went to crap when i assembled it...
I must gave a different log in on my phone Christian lol
Yes i had heat related issued loosing a occasional step and stalling on very high soeed jogs in excess of 5000mm/min with the dr8825s . Fine on a...
I bought them from the australian openbuilds store so assummed they werent the junk ones . Will take apart tommorow and try and see what i have...
Genuine v3 bought from the australian openbuilds distributor . Looking closely at the pcb with a magnifying glass i can see probe written on the...
Well i fitted up the tb6600's to the arduino using a 36v 11A power supply . Using nema23 1.26nm motors . Instantly better setting current limit to...
Problem temporarily resolved dropped ref voltage to 0.8v and added better cooling fan . Think i need to reconsider the drv8825s and find a better...
Rather than putting 2 beams back to back would I be better off using 2 beams but spaced one above the other with a gap between for the lead screw...
Just finishing up my build of a 1000x1000 Workbee , one thing that concerns me is the rotational stiffness of the X axis Cbeam , there is quite a...
