Re: Run out of ideas about motor skipping solutions. Request for more ideas...
If the stepper driver overheats you should miss multiple steps (large shift). The stepper won't skip steps due to overheating. It will go to 80 or 100 C before it starts to degrade. If it doesn't burn...
View ArticleRe: On what components is the maximum speed of stepper motors dependend on?
Wow! Too many variables. :) For firmware speed caps I would post a separate question to the firmware forum of your choice. Make it simple. For a leadscrew system I'm not sure you gain much going from...
View ArticleRe: A4988 stepper driver temperature too LOW?
Interesting. It doesn't seem likely that higher drive current would result in lower driver temps. Is this driver a step-stick clone limited to 1A? If so then even at "full" current it's running at...
View ArticleSo I took apart some printers :)
Hi all, I've salvaged some printer motors but it's been a bit of a mixed bag, more than half the motors were DC motors some kind of optical sensor attached for timing and the rest were all quite...
View ArticleHow i chose the stepper motor :(
Hi I have started our project to build ( huge) 3d printer We chose RA controller to control huge size of printer With dimensions 50*50*50 cm for object(model) that we will print it I'm the one who...
View ArticleRe: A4988 stepper driver temperature too LOW?
I don't know if it is limited to 1A. Would that explain the hotness using the other steppers? How can I tell if those drivers limit at 1 A? Maybe there is something to the resistance/voltage rating of...
View ArticleSo, I took apart this Stratasys printer... looks like custom steppers
I think they had custom steppers and I thought I'd ask here. Here is the thread: [forums.reprap.org] There are two different kinds of steppers used and I cannot get an exact datasheet. I emailed their...
View ArticleRe: So, I took apart this Stratasys printer... looks like custom steppers
Lin Engineering: 5718M-24P-03RO 57 = NEMA 23 18 = 1.8 degree steps (200/rev) M = 2.22" motor body height 24 = Winding code P = coils are wound parallel, single ended shaft 03 = Special configuration...
View ArticleRe: So I took apart some printers :)
What are you building? If you're building a 3D printer, I wouldn't use any of those. Their performance is going to be poor. Their torque rating are all going to be very low and if you gear them down...
View ArticleExtruder stepper freeze when hitting extrude in pronterface
Hi all my first post. So i have two prusaI3 printers. One for plastic and one for experimenting with mig welding. prusaI3 greg/wade Extruder Marlin ramps1.4 So while i was experimenting with mig...
View ArticleRe: Extruder stepper freeze after one g1 e5
I'd want to test in when I got home, but isn't the E parameter absolute and multiple G1 E5 commands would just tell the printer to try to extrude filament until it reached the 5mm point. Since it was...
View ArticleRe: Extruder stepper freeze after one g1 e5
Thanks for the quick reply cdru. You are totally right. So the real problem for me is when i press the extrude button in pronterface and it mostly does a very low vibrate and barely moves.(not feeding...
View ArticleRe: Extruder stepper freeze after one g1 e5
What speed (mm/min) are you trying to print at using the extrude button in pronterface?
View ArticleRe: Extruder stepper freeze after one g1 e5
cdru, How do I check the speed(mm/min). Is this a setting in my configuration.h in marlin or some gcode command in pronterface?
View ArticleRe: Extruder stepper freeze when hitting extrude in pronterface
It should be next to the buttons for extrude and reverse. In this example if you hit extrude it would spit out 5mm of filament at a rate of 300mm/min. The 300 value is what I was asking for. Also,...
View ArticleRe: Extruder stepper freeze when hitting extrude in pronterface
cdru, That was it. I tried Repetier Host last night and everything was fine so I had narrowed it down to pronterface. I'm not to smart. I thought that the 300 in the mm/min was how much it goes when...
View Article86HS120 motors and board connections for driver
Hi everybody, I made a printer before but i am little bit confused on my new project. I will build little big one and i am gonna use 86HS120 step motor and M880A step drivers. I have ramps 1.4 and...
View ArticleRe: 86HS120 motors and board connections for driver
To use external drives you just connect ground, direction and step pins from board to driver. You then connect power supply + and ground and steppers to extrernal driver. Do not install a4988 drivers....
View ArticleRe: 86HS120 motors and board connections for driver
Thank you george4657 for your answer. Do i need to connect enable pins and do i need to make any short circuit on board? I did read some forum that a4988 driver are short circuited while using. Should...
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