Will any of this steppers work?
Hi, First I'll Introduce myself, my name is Andres, I'm from Argentina, i'm building a prusa mendel with a friend, using RAMPS electronics, and would like to know if you guys could help me, any of...
View ArticleRe: stepper motor 17hs0002-11
As a matter of preference, i choose to overlook all that torque bs, its much less relevant than what it appears to be. First off, depends on which conditions that said torque is measured, some...
View ArticleRe: Will any of this steppers work?
The ones which say for example "phase resistance" 12 ohms or more, strike those off from start. In the end, ideally pick one with 2-3-4-(5max) ohms coil resistance and (min1.2A)-1.5-2.0-2.5A current.
View ArticleRe: SOLVED Stepper motor too slow
Changing a stepper motor from full step to 1/16 micro stepping will make the motor run slower, since it's still getting the same number of steps. At 1/16, it takes 16 times as many steps to make one...
View ArticleRe: stepper motor 17hs0002-11
Finally i buy stepper motor. This is its featuers. 1.7 A 4.08 v 12v 5 A power supply also i can use 12V 2.5 A drv8825 I want to set voltage by pot. How much do I adjust the voltage?
View ArticleRe: stepper motor 17hs0002-11
Assuming this is your driver, on that page scroll down and it is written "Current Limit = VREF × 2". So start with 0.8A peak, that means Vref=0.4V. It should have enough torque like that, but if it...
View ArticleStepper for RepRapPro TriColour
I'm slowly getting all the parts to put together a RRP TriColour Mendel. Would these steppers be any good: [www.ebay.co.uk] I'm in the UK so the shipping from Germany is a bonus. Ben
View ArticleRe: stepper motor 17hs0002-11
My stepper motor current is 1.7A so Current Limit = VREF × 2 ==> VREF=0.850 V is that right?
View Articlenema stepper cable changing / rewiring.. howto?
Hi, well, this is my first post. Mainly thanks to you, the community, as you always had the specific problem already covered. That helped me out a lot - thank you. Now I'm facing a problem, and I hope...
View ArticleRe: stepper motor 17hs0002-11
Nop, not like that. The 1.7A label on the motor is a maximum, not something you want to have. Also the drivers have a current rating which is also a max, again not good have. That pot on the driver...
View ArticleRe: nema stepper cable changing / rewiring.. howto?
Perhaps would be nice to know which motors you have, or pictures or something. But anyway you only need to open the motor if you have a 5 wire unipolar only motor to which may try to separate the...
View ArticleRe: Stepper for RepRapPro TriColour
Those look ok imo. I would try them with drv8825 drivers.
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Re: nema stepper cable changing / rewiring.. howto?
here are some pictures of the motor: DZMmw2Q.jpg Fully assembled. Four phases and a small part of the coil visible. lmdI2Uz.jpg Housing disassembled, rotor still inside. tcF6LCb.jpg Housing and rotor...
View ArticleRe: nema stepper cable changing / rewiring.. howto?
The wires are stranded multiples of small ones, so they do not fracture, so no worries about wire fracturing or solder joints life. Yes by soldering the wires i meant outside the motor. Sry if i was...
View ArticleWhat am I missing
Several places list this motor in the ~ $50 USD range. Applied Motion HT17 [www.mouser.com] [us.misumi-ec.com] [www.walkeremd.com] The first google result for NEMA17 stepper is a ROB-10846 for $17 and...
View ArticleCalculating motor torque required
Hey guys I'm still fairly new here but I've spent quite a bit of time doing all sorts of research. One of these areas is choosing the stepper motors and even though it is not the most efficient or...
View ArticleRe: Calculating motor torque required
That's a weak field. People simply try and error. Even basic maths is too much for most RepRappers. If you want to do it yourself: F = m * a Force = mass * acceleration Having the required force you...
View ArticleRe: Calculating motor torque required
I'm just wanting to know if there are any errors in the way I would be calculating it such as how I arrived at my actual torque based on certain variables and then how I applied it to a load and...
View ArticleRe: Calculating motor torque required
Not even manufacturers make torque numbers like that, i think what they give is mostly tested empirically instead. But methodology can differ, some manufacturers will say torque graph is from constant...
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