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STEP-BY-STEP: Installation of SilentStepStick-Drivers on UMO


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Posted · STEP-BY-STEP: Installation of SilentStepStick-Drivers on UMO

thank you for the fantastic manual! it really is a tremendous improvement. I now also upgraded the e driver. while you still hear retraction quite well, the main noise source now is my print head fan (which is amazing!)

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    Hi gr5, I picked up an ultiboard2 clone from aliexpress, named "v2.1.5" specifically to try out the TMC2100's. The board actually comes with individual micro jumper switches, much like the jumpers on

    Hands down, these stepper drivers are crazy! Printing 95 mm./s here: https://www.dropbox.com/s/fgqsl64ld2rtpr7/2015-04-14%2019.06.25.mov?dl=0 I had already done the "remove two pins and solder over

    Hi John, in march 2016 I replaced the drivers for the X and Y-axis only, and got (and still have) a nice and quite UMO. So what you could do is set back the driver for the Z-axis (it doesn't make a lo

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    Posted (edited) · STEP-BY-STEP: Installation of SilentStepStick-Drivers on UMO

    I bought them from watterott. Palced them (without heatsink) for XY. I also did change motor cables -  I want it to be only hardware upgrade.

    Vref set to 1,25 (from factor). My UMO is now really quiet. Only fan and retraction makes some noise.

    I'm after 2h test print. These are awesome. Thanks @ataraxis.

    Now I'm only waiting for GT2 set for next upgrade;)

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    Posted · STEP-BY-STEP: Installation of SilentStepStick-Drivers on UMO

    Too fast for direct drive?

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    Posted (edited) · STEP-BY-STEP: Installation of SilentStepStick-Drivers on UMO

    I did misunderstand DD. DD upgrade is not, replacing bowden, but short belts. IS there any instruction, made like this one?

    Probably I don't need that. My UMO prints in 80 or 100mm/s looks almost perfect.

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    Posted (edited) · STEP-BY-STEP: Installation of SilentStepStick-Drivers on UMO

    If you don't face any problems you don't need it ;) But if you are interested, take a look here: https://www.youmagine.com/designs/umo-mod-motor-corner-endstop-version

    But I really recommend metal bellow couplings as i have installed now (not the ones at the picture). They have zero backlash (but are not so easy to get and very expensive).

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    Posted · STEP-BY-STEP: Installation of SilentStepStick-Drivers on UMO

    sorry for maybe asking stupid questions but I had tooo less sleep the last nights... :-(

    @Atraxis, when you write

    ...

    6.2) Toggle "invert axis" everywhere you install the new drivers.

    ...

    you also mean at the feeders?

    I´m asking because in Marlin (not the builder!) there is the following note:

    #define INVERT_E0_DIR false // for direct drive extruder v9 set to true, for geared extruder set to false

    #define INVERT_E1_DIR false // for direct drive extruder v9 set to true, for geared extruder set to false

    So changes at X, Y are clear (= invert) but what to do at E? Also invert?

    Maybe it´s already written and I have overseen it, nevertheless any hint appreciated...

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    Posted · STEP-BY-STEP: Installation of SilentStepStick-Drivers on UMO

    Ok...

    after re-thinking my own post... E are no axes

    so... have to go to bed... better idea than soldering...

    good night everybody...

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    Posted · STEP-BY-STEP: Installation of SilentStepStick-Drivers on UMO

    Ok...

    after re-thinking my own post... E are no axes

    so... have to go to bed... better idea than soldering...

    good night everybody...

     

    I was super confused about the whole inverting too in the beginning... The setting you need will, in the end, depend on a number of things: Are you running a geared or direct drive feeder? How did you turn the engine plug in the board? (turning it 180 degrees will reverse the motor) Which stick did you end up using on each axis? (silent stepstick interpret the step signals differently than eg. A4988, so motors will run in the other direction)...

    Once you have swapped enough things around enogh times, you kind of loose track of what the setting should be...

    However, no harm is done by setting it wrong (your extruder will just run backwards)...

    Just try a setting, heat your hotend and try extuding some cm. of filament and look at what happens... If its running the wrong way, either change the invert setting in firmware or turn the motor cable 180 degrees.

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    Posted (edited) · STEP-BY-STEP: Installation of SilentStepStick-Drivers on UMO

    "Invert axis" should be called "invert direction" or something like that... :DThe SSS is generally driving the motor counterclockwise when the A4988 is driving it clockwise and vice versa. In order to fix that,  you have to check "invert axis" if it is unchecked by default or uncheck it, if it is checked by default.

    This is true for all the steppers, x y z and e.

    But, yes - as Tommy already said, the direction is influenced by more than one factor (geared or not geared feeder, position of the knurled bolt and filament, short belts or direct driven x and y, and so on...).

    Howsoever... that's definetly not the reason why you are losing steps, how does it "sound and look" like if you lose it? Have you tried to increase or decrease the voltage? What is the voltage set to at the moment?

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    Posted · STEP-BY-STEP: Installation of SilentStepStick-Drivers on UMO

    But in general you have to change your settings while switching to SSS. As default, UM has X-axis inverted, so you have to make it straight. Y, Z and E are straight - you need to invert these. Only if you changed stepper. If you change XY steppers, you got to change X and Y settings only.

    My advise: change motor wires, not firmware. You can use your current settings, no new firmware. Only hardware is changing.

    Motor wires are in pairs (on bottom of the picture): blue and red (1st coil), green and black (2nd coil). Switch pairs. You should get green, black. blue and red. No firmware change. All set up. Ready to print:)

    See colors here: http://wiki.ultimaker.com/File:Circuit_complete.jpg

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    Posted (edited) · STEP-BY-STEP: Installation of SilentStepStick-Drivers on UMO

     

    @mariuszem: if you change it for the z axis too, you have to touch the firmware anyway - or use the ulticontroller. But a new firmware is never a bad idea I guess. It's good to understand MARLIN at least a bit... :D

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    Posted (edited) · STEP-BY-STEP: Installation of SilentStepStick-Drivers on UMO

    @mariuszem: if you change it for the z axis too, you have to touch the firmware anyway - or use the ulticontroller. But a new firmware is never a bad idea I guess. It's good to understand MARLIN at least a bit... :D

     

    that´s true... there are so much interesting settings and possibilities for extention...

    So I´ll invert my settings also for E to get my UMO sshhhhh... :-)

    Guys, thank you for clarification...!!!

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    Posted (edited) · STEP-BY-STEP: Installation of SilentStepStick-Drivers on UMO

    @mariuszem: if you change it for the z axis too, you have to touch the firmware anyway - or use the ulticontroller. But a new firmware is never a bad idea I guess. It's good to understand MARLIN at least a bit... :D

     

    But Z is not in common use with high speed. XY is probably most common change. I got to tell you @drayson, that E is quite silent. Only retraction is noticable. Believe me, fan is louder than retraction.

    @ataraxis, with ulticontroller you can change steps for Z and XY (with gt2 upgrade), so no mess with firmware.

    Once I plug my printer to new PC/Mac I upload new firmware with Cura wizard. It is why I do prefer to change motor wires. Steps are ulti-controlable;)

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    Posted (edited) · STEP-BY-STEP: Installation of SilentStepStick-Drivers on UMO

    i like the idea that I can revert everything and bring it into original condition again - i just don't want to cut, solder or drill anything if not necessary.

    sooner or later you will have to understand marlin (and how to build it) at least a bit, and it's not a big deal to make one... until then, to each his own ;)

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    Posted (edited) · STEP-BY-STEP: Installation of SilentStepStick-Drivers on UMO

    @ataraxis, I like idea to revert everything also. Do you know, that for replacing motor wires U need: unplug connector, take out wires (using niddle), put these in, and plug motor connector back, only. No soldering. no cutting, no drills. Only repluging:)

    BTW, I know Marlin well. I just like the idea to have original FW, updated with Cura:)

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    Posted (edited) · STEP-BY-STEP: Installation of SilentStepStick-Drivers on UMO

    ah yes i see, that's better than cutting and soldering ;)

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    Posted (edited) · STEP-BY-STEP: Installation of SilentStepStick-Drivers on UMO

    So, finally installed he SSS Drivers.

    The heatsink I got were also to high so I simply cut them to 6mm hight so it fit´s perfectly.

    Regarding VRef, I put it to 1.0V and will take a look.

    Might be a good idea to share just the VRef you applied to compare

    Maybe some kind of table?

    Anyone interested?

    I started just summarizing the values found in thei thread:

    Ataraxis: 0.8V and up

    Tommy: around 0.9V @ RUMBA board

    tsp42: to get 1,2V I had to adjust the sense resistor to 8,6 kOhm resistance between VRef and Gnd

    Starscream83: ???

    yoveo: 0.85V

    mariuszem: Vref set to 1,25 V

    Drayson: 1.0 V

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    Posted · STEP-BY-STEP: Installation of SilentStepStick-Drivers on UMO

    Guys, I got a very strange behavior on my 2nd Extruder...

    Silent Step Sticks are in at X, Y, E0 and E1

    E0 is fine, but...

    When switching on my UMO the second extruder stepper moves forward a small portion moving filament towards the head... I have no idea why...

    changed nothing in FW except the direction (invert)...

    Any idea???

    ataraxis, do you have an idea?

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    Posted (edited) · STEP-BY-STEP: Installation of SilentStepStick-Drivers on UMO

    Hey @drayson,

    1) is it always the same movement?

    2) Please try the following: Switch the drivers from E0 and E1, is it still E1 that moves at startup?

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    Posted (edited) · STEP-BY-STEP: Installation of SilentStepStick-Drivers on UMO

     

    @drayson: does it look like this?

     

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    Posted (edited) · STEP-BY-STEP: Installation of SilentStepStick-Drivers on UMO

    Hi ataraxis!

    Thank you for reply!

    @1) is it always the same movement?

    => yes, it´s always the same movement/mount. Looks like in your video

    @2) Please try the following: Switch the drivers from E0 and E1, is it still E1 that moves at startup?

    => switched the drivers, it´s still E1 which is moving. So it seems not driver-related.

    I crosschecked also my changes in the FW. I only changed "true" vs. "false" in the related lines for X, Y, E0, E1.

    Any idea?

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    Posted (edited) · STEP-BY-STEP: Installation of SilentStepStick-Drivers on UMO

    Also put in back the old driver at E1 - no movement at power on at all...

    so maybe related to the SSS drivers especially at E1...

    B.t.w.: myaybe stupid question, but: how did you linked my name in your posts?

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