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Re: New MKS SBASE Smoothieware-compatible board from China October 15, 2016 09:49AM |
Quote
wetsparks
OK, had a thought and tried M119. It showed Y an Z end stops had 1s to them. So I have 'nc' outed these end stops for now, just in case this was the problem.
No luck, the fault is still there
Hi, i have found a solution to the optical endstop on MKS,
In the declaration of "gamma_min_endstop" the correct value is : gamma_min_endstop 1.28v
The "v" argument is for activate the pull down.
- Prusa I3 rework HomeMade
- Roxanne HomeMade
- Prusa I2 Kit (à légué sa place à roxanne)
- iTopie En cours (Conception par Skarab)
Sur tout ça un extrudeur WadeL3K : [www.thingiverse.com]
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Re: New MKS SBASE Smoothieware-compatible board from China October 15, 2016 12:59PM |
Solved the problem, thanks to some quick technical help from MKS 
The problem was that me slicer Simplfy3D was putting in an M105 command, cos I had ticked a box for it to do so. This was reporting back to the software the extruder temperature after each layer, this was causing the delay.
for MKS support on this one.
The problem was that me slicer Simplfy3D was putting in an M105 command, cos I had ticked a box for it to do so. This was reporting back to the software the extruder temperature after each layer, this was causing the delay.
for MKS support on this one.
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Re: New MKS SBASE Smoothieware-compatible board from China October 22, 2016 06:40PM |
Not sure if anyone can help here but I just got the MKS SBASE 1.3 board off amazon. (https://www.amazon.com/gp/product/B01FVT5VA8/ref=oh_aui_detailpage_o00_s01?ie=UTF8&psc=1)
When I plug it in the lights all light up (attached picture) D7 is brighter then the LEDs on the left all flash in sync (red arrows). I can not get the board to show up in windows. I am tempted to just return it but would like to get my printer back up and running.
When I plug it in the lights all light up (attached picture) D7 is brighter then the LEDs on the left all flash in sync (red arrows). I can not get the board to show up in windows. I am tempted to just return it but would like to get my printer back up and running.
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Re: New MKS SBASE Smoothieware-compatible board from China October 27, 2016 03:48AM |
Hello, the power from USB isn't enough to power up the sbase v1.3 and mks tft32, you should connect a external 12V power supply.
It's possible to select different stepping tham 1@32.
It's possible to select different stepping tham 1@32.
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Re: New MKS SBASE Smoothieware-compatible board from China November 27, 2016 01:21PM |
Quote
Djrema
Quote
w3drk
If anyone in the states want one, I'm selling my SBASE v1.2. It's been modded with stable oscillators (I'm the one who discovered the initial issue), and the DRV8825s are forced into fast decay mode to allow the use of low inductance steppers with 24v, so no need to mess with diodes. In my opinion mixed decay on the DRV8825 is useless...
I was using this board on a 24v Kossel 250 with 0.9deg steppers. After modding to fast decay mode it's nice and smooth and no problems with up to 300mm/sec moves...which with 0.9deg steppers is pushing the 100MHz MCU.
Flawless condition and rock solid stable. $50 PayPal shipped anywhere in the US and its yours.
I'm really disappointed with this board. Everything installed, edge version running and all seems ok but...
Im having horrible, I mean really horrible high pitch noise coming from the motors. Would you mind to share how you forced to fast decay mode?
I suspect is coming from the drivers. Tried different settings, tried 1/16 and nothing.
Has anyone else found a solution for that?
Cheers,
Raph
Quote
chris33
well i have mine running at 12v and mine seem ok but I'm use to noise working with cncs all day but i believe its noiser at 24v, theres a mod im sure there is if you google it changing the decay mode
W3DRK probably used this method, but I think you are looking for this solution, because neither fast decay and mixed decay mode aren't a complete solution...Read through the blog, but take your time (and probably a couple cups of coffee
)To make a long story short one should create a circuit with several 1N5404 or 1N5408 diodes for every axis
Edited 2 time(s). Last edit at 11/27/2016 01:28PM by Billi3.
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Re: New MKS SBASE Smoothieware-compatible board from China November 28, 2016 06:34AM |
That's great to hear. Especially the part of not wanting to commit suicideQuote
Djrema
Thanks Billi3. Tested on 1N5408 and worked. Eliminated 95% of the noise. There is still some, but barely noticeable - That doesn't make me willing to kill myself any more.
Appreciate that.
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Re: New MKS SBASE Smoothieware-compatible board from China November 28, 2016 08:53AM |
Quote
Billi3
Quote
Djrema
Quote
w3drk
If anyone in the states want one, I'm selling my SBASE v1.2. It's been modded with stable oscillators (I'm the one who discovered the initial issue), and the DRV8825s are forced into fast decay mode to allow the use of low inductance steppers with 24v, so no need to mess with diodes. In my opinion mixed decay on the DRV8825 is useless...
I was using this board on a 24v Kossel 250 with 0.9deg steppers. After modding to fast decay mode it's nice and smooth and no problems with up to 300mm/sec moves...which with 0.9deg steppers is pushing the 100MHz MCU.
Flawless condition and rock solid stable. $50 PayPal shipped anywhere in the US and its yours.
I'm really disappointed with this board. Everything installed, edge version running and all seems ok but...
Im having horrible, I mean really horrible high pitch noise coming from the motors. Would you mind to share how you forced to fast decay mode?
anyone with a physical picture of the cuircit they made for the diodes as im rubbish at looking at diagrams and find it easier to copy form a physical one thanks
I suspect is coming from the drivers. Tried different settings, tried 1/16 and nothing.
Has anyone else found a solution for that?
Cheers,
Raph
Quote
chris33
well i have mine running at 12v and mine seem ok but I'm use to noise working with cncs all day but i believe its noiser at 24v, theres a mod im sure there is if you google it changing the decay mode
W3DRK probably used this method, but I think you are looking for this solution, because neither fast decay and mixed decay mode aren't a complete solution...Read through the blog, but take your time (and probably a couple cups of coffee
To make a long story short one should create a circuit with several 1N5404 or 1N5408 diodes for every axis
Check my rubbish blog for my prusa i3
up and running
[3dimetech.blogspot.co.uk]
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