Re: Did anyone used linear hall sensors on BLDCs for position sensing?
Hello Misan, What is the advantage of using a brushless DC motor instead of a stepper? Is it a cost reduction aim that you are looking for? Or is it size? I have some time ago ordered a number of...
View ArticleRe: Did anyone used linear hall sensors on BLDCs for position sensing?
QuoteLarsK What is the advantage of using a brushless DC motor instead of a stepper? Is it a cost reduction aim that you are looking for? Or is it size? ... The point here is to "close the loop" i.e....
View ArticleRe: Did anyone used linear hall sensors on BLDCs for position sensing?
The advantage of using a closed-loop system is to compensate for potential errors, that means no more missed steps. Cost reduction is not a goal, but we are trying to get this working within a similar...
View ArticleRe: Did anyone used linear hall sensors on BLDCs for position sensing?
Quotemisan The advantage of using a closed-loop system is to compensate for potential errors, that means no more missed steps. Cost reduction is not a goal, but we are trying to get this working...
View ArticleRe: Did anyone used linear hall sensors on BLDCs for position sensing?
Hi LarsK, QuoteLarsK Misan, I do not understand why missed steps is a concern. I don't say this out of arrogance but I am fairly late to the 3d printing world - SO what I would say is that, if your 3d...
View ArticleRe: Did anyone used linear hall sensors on BLDCs for position sensing?
@ LarsK I am thinking the text you quoted is probably out of date. I cannot think of a single situation nowadays in which an open-loop stepper-based solution can offer better performance than a...
View ArticleHard to find stepper motor replacement
Hi all, I am looking for a specific stepper motor as a spare part (for scientific equipment).... This seems to be kind of difficult as Rotalink won't sell to anyone except for licensed partners. Motor...
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Motor Only Moves in One Direction!
Hello! I'm working on getting my machine up and running using Marlin firmware - but I'm having some problems. The X-axis motor only moves to the left. This is slightly complicated by the fact that I'm...
View ArticleRe: Motor Only Moves in One Direction!
QuotejoshuafkonI'm particularly unclear about the circled GND and Voltage - I interpreted that wiring diagram as saying that if I'm using an external power supply (which I am - 24V) then don't use...
View ArticleRe: Motor Only Moves in One Direction!
So, I've been able to get the motor to move in the other direction - sort of. If I switch The AB wires in either of the phases then the motor will move counter-clockwise (but still only that direction)
View ArticleRe: Motor Only Moves in One Direction!
Marlin will not allow you to move any further in a negative direction than your starting point until you've performed a home. I'm not sure if eliminating your end stops will get around this. I'd put...
View ArticleStepper Motor Hell
Hello everybody, I am having a really hard time trying to make my stepper motors to work ... What i am using: - ramps 1.4 - A4988 stepper motor driver - 200 steps motor (17HSR1006-25) - marlin 1.0.2-1...
View ArticleRe: Stepper Motor Hell
Have you set/checked/tweaked the driver reference voltage? - Tim
View ArticleRe: Stepper Motor Hell
Thanks you Tim for your answer. Yes, I tried to adjust this parameter. I started at first with a 0.8 V potential, and tried to lower and increase it. The only effects I can see, are a stronger...
View ArticleRe: Stepper Motor Hell
If all the motors are doing the same thing and they vibrate instead of move, then the wiring of the motor cables may be wrong for the electronics. I had this problem with a new set of cables from...
View ArticleDo the heatsinks on a A4988 make you nervous?
I look at the heatsinks on a cheap A4988 board and they make me nervous. The sit very close to some of the passive components on the board. Does this bother anyone else? Any risk of them shorting...
View ArticleDriver for 42BYGHM810 motor
Hi there I am the owner of 4 pcs. of 42BYGHM810 ( I think ) and am looking for a driver for the motors. I am having a little problem finding drivers for the motor, the Voltage of 1,92V and Current of...
View ArticleRe: Driver for 42BYGHM810 motor
Your problem is that the 2.4A rated current is rather high for the standard low-cost drivers. However, if you don't need the full torque that the motors are capable of, then these [www.pololu.com] or...
View ArticleRe: Driver for 42BYGHM810 motor
Cool, thanks for the tip. At the moment i just want to drive them, no practical project at the moment. Would a A4988 also from Pololu work? Have a few of them somewhere :)
View ArticleRe: Driver for 42BYGHM810 motor
QuotetheDiver Cool, thanks for the tip. At the moment i just want to drive them, no practical project at the moment. Would a A4988 also from Pololu work? Have a few of them somewhere :) Yes, that...
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