I always make changes at firmware but i found the default acc. and speed never change in LCD... Thank you for your information and i try to check the EEPROM and found it still enable in the fresh download firmware. So i comment out #define EEPROM_SETTINGS and finally the value change in firmware and i can set 3200 for the step per unit. Now it work fine when i decrease the speed, acc. and jerk (by cowie - Tantillus
Thanks, i had change to 3200 steps per unit. However the situation did not improve...i try to lower the accelerate value in the firmware and the LCD did not get change after upload. It was fine when i change the Fan speed value as mention above. I am not sure is the step per unit value get update or not (i try M92 but no respond at Pronterface). Are there any clue for that?? Thanksby cowie - Tantillus
Right, i tried 120 but the problem occur. Only in 100 hollow trial success but it is 2mm shorter (ie 20X20X8 as result) is it because i am using standard M6 thread rod for Z ?? However the 25% infill still have offset problem when the speed at 100, it happen when printing the infill layer but it back to right position when printing the cover. I had try both round and straight infill but stillby cowie - Tantillus
Thanks, i just reverse the logic in the firmware and it work fine now. So far i just print 20X20X10.stl . I don't understand why the position move when the infill layer start (see attached pictures). And i find the centre in kisslicer is not the centre of the print area... I had check all the cables of X and Y axis and find no problem. Is there any setting i did wrong? Thanks P.S. first trby cowie - Tantillus
Thank you all, i just set 255 in the firmware as fans just work on that. I am facing another issue that when i click home button the Z will go down ( about 10) instead of going back to the original position. Is it because i just connect only 4 pins instead of 8 pins of the Z motor? How you guys connect them? Thanks!by cowie - Tantillus
Thanks, i had google it and find someone did this before with 7805 IC could work http://www.instructables.com/id/Fix-a-fried-Arduino-Mega/?ALLSTEPS And my Arduino mega works fine. Now i am facing a problem that i connect the fans to the RAMP but the fans just not turning and have continues beep sound. Any suggestion what it mean? PS: i have test two fans with 12V battery and they work fine. Fby cowie - Tantillus
the regulator died? i just check it again and find this part burn on Arduino is there possible to remove it and replace a new one?by cowie - Tantillus
But the Arduino Work fine, it still can control the RAMP. So what you suggest i should do to fix it? I cant find any part burn...by cowie - Tantillus
Thanks, i had figure that out already. Now i am facing a problem that when i fine tuning the A4988 and all in sudden a pop sound and white smoke come between two boards. After that i can't provide power to RAMP but using USB from ARDUINO is fine. Without power on RAMP i cant continue... Would you please help what's going on? Thank You! Cowby cowie - Tantillus
Here are some questions in my mind and want to ask or confirm before building my Tantillus: Motor Model no.: 42BYGH40-402A Step angle: 1.8° Length: 39mm Rated voltage: 3.15V Rated current: 1.5A Phase resistance: 2.1Ω Phase inductance: 1.9 mH Holding torque: 3.0 kgf.cm Lead wire: 4 Rotor inertia: 54 g.cm Weight: 0.28kg I am not so sure this motor alright for Tantillus which I am going to order.by cowie - Tantillus