Re: powerlolu ordering
By any chance you have some boards left. I would like to buy them.
View ArticleRe: Microstepping and steppers in serie skipping (tmc2100)
Hi, A problem: Few months ago I've replaced X and Y drivers with MKS TMC2100 (single green bank of pins), and initially I've been amazed how silently it can print. Indeed I've removed all jumpers from...
View ArticleWeird extruder motor behavior
Hello everybody. In the middle of a print my extruder motor stopped feeding correctly. What does this mean? Please watch it in the video. Here: Extruder movement Thanks in advance.
View ArticleStep loss in X-axis
Hi community! I'm having trouble with my cartesian style printer. The X-axis sometimes experiences step loss, about once every few hours, just enough to destroy most of the prints. I've tried...
View ArticleRe: Step loss in X-axis
Your Z axis has lead screws. You carefully positioned them parallel to the Z axis guide rails. Why? Your X axis uses a belt. You didn't position it parallel to the X axis guide rails. Why not? What...
View ArticleRe: Step loss in X-axis
I bought the printer back in 2013 and that's just how it was built. I changed and replaced a lot over the years but didn't change the overall structure of the x axis itself (only a new motor, new...
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Re: Step loss in X-axis
OK, first principle of linear motion: the driving force must be applied parallel to the guide(s). In a screw driven system, driving force is coupled from the screw to whatever is being moved along the...
View ArticleRe: Step loss in X-axis
Wow, thank you for that detailed explanation. I'm afraid the printer has been bad engineering from the beginning and I didn't make it better with my tinkering through the years. But unfortunately I...
View ArticleRe: Step loss in X-axis
Instead of redesigning the carriage, it may be easier to move one of the pulleys. The constant length return segment of the belt doesn't need to be parallel to the movement direction.
View ArticleRe: Step loss in X-axis
it's this motor here: [reprapworld.com] So according to the seller the voltage rating is 3.1V That's a great idea to move the pulleys. I think i can fit those parts in my tiny 6x11cm SLA printer which...
View ArticleRe: Step loss in X-axis
Can't you just feed the belt end coming from the motor directly underneath the white block (now its going over and around), i.e.together with and at the same height as the belt end coming from the...
View ArticleRe: Step loss in X-axis
Alright, I changed now the position of the pulleys and omitted the tensioner on the carriage (I tensioned the belt by making slots instead of holes at the motor side and just pulled the motor while...
View ArticleRe: Step loss in X-axis
The advantage of using a higher supply voltage is that the drivers can maintain full torque to the motors up to higher speeds. This allows higher travel speeds without missing steps. The motor EMF...
View ArticleRe: Step loss in X-axis
QuoteJamkas Alright, I changed now the position of the pulleys and omitted the tensioner on the carriage (I tensioned the belt by making slots instead of holes at the motor side and just pulled the...
View ArticleRe: Step loss in X-axis
During the last few days my printer worked for many hours without step loss so far. Therefore I'm optimistic that my problem has been solved by redesigning the drivetrain of the x axis. However I...
View Articlestepper for plain cartisian x axis
Just compleatinga build on plain carsitan xy printer, no corexy or hbot just plain old cartisan. X axis has total length of 350mm with a light carrige running on a 20mm extrusion with 9mm mgn rail and...
View ArticleRe: stepper for plain cartisian x axis
I am not familiar with oz.in but all 4 stepper drivers on my Ormerod have 23Ncm torque at rated current. They are 34mm long. The X motor runs at just 60% of rated current, which suggests that 15Ncm is...
View ArticleRe: stepper for plain cartisian x axis
now ive converted it from oz.in to cnm the specs wrong on the website i was looking at , 60oz.in is about 42cnm which is way to much for a 23mm stepper. From what your saying it should be ok. Thanks Adam
View Article0.9° Stepper - Worth it?
I'm planning a Ultimaker clone, I have enough 1.8° degree steppers but I may buy 0.9° motors if they would produce an improvement in print quality. I can see a potential on the X and Y but what about...
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