26 Reply by evanboothe

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Re: Bed leveling issue.

yizhou.he wrote:

try lower motor current, motor driver current too high can cause more vibration. I also found tl-smoother greatly reduce ghosting, but you need to fix all other problems before you can see the difference. I think motor damper may also help, but I just got them and have not seriously compared the difference yet.

sometimes hotend fan can also contribute to this vibration if fan blade is not balanced. use wrong lubrication can also contribute to it.

How do I know how much to drop motor current down to? Just tinker with it? I can’t find much info on TL-Smoothers but I’m interested in adding that on

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27 Reply by carl_m1968 (edited by carl_m1968 2019-01-02 12:45:44)

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Re: Bed leveling issue.

The idea is to have the current just high enough to work. So you lower it to the point of failure where the axis won't move. Then bump it up about .2 at a time till it starts working again.

Since you are using 8825 drivers they are controlled by the pot that is on them. The setting in the config.txt is ignored since they do not have SPI support like my Bigfoot Drivers.

So use a host that allows you to jog each axis. Only do one at a time to avoid confusion. Using a non-conductive screwdriver back the pot off a quarter turn and confirm if the axis will still move. Repeat until the axis will just buzz and not move. Once that point is reached turn the pot up a quarter turn. The confirm the axis moves. If it does then leave it and move to the next. Once all three are done try a test print and confirm that all three axis can complete the print. If one or more seem to bind then bump the current up another quarter turn.

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28 Reply by yizhou.he (edited by yizhou.he 2019-01-02 15:33:24)

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Re: Bed leveling issue.

Yes, mostly what Carl said. The only difference is when I turn the pot up, I do "Home All", and after all axis is homed, they are hold by the step motor and you should not be able to move any of the axis by push with your hand if your motor current is high enough. I usually turn the pot up and try to push the corresponding axis by hand, if it can be easily pushed to move, the motor current is too low, you will get layer shift during the printing. I will stop turn the pot up when I can not easily push and move the corresponding axis.

DRV8825 drivers suffer from skip steps and salmon skin which can be improved by tl-smoother, it have been controversy whether it works and why it works. Read more on internet and youtube and make your own decisions. I found it improves print quality only when you fix everything else, that says, loosing belt and vibrating motor/frame contribute more to bad print quality and you should get all these issue sort out first.

I am adding it to all my printers, I order from aliexpress to reduce cost because I have many printers, it is available from Amazon too which ships a lot faster.

https://www.amazon.com/ARQQ-Smoother-Pa … -Smoothers

(Da Vinci 1.0, Jr. 1.0 RAMPS, miniMaker) X4, (Creality CR-10S, CR-10 mini, Ender-3) X4, Anycubic MEGA X4, Anycubic Chrion X1, ADMILAB Gantry X2 (MonoPrice Maker Select V2, Plus, Ultimate)X4--Select mini X1, Anycubic photon X4, Wanhao duplicate D7 X1.
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29 Reply by evanboothe (edited by evanboothe 2019-01-15 02:24:55)

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Re: Bed leveling issue.

Okay so I started to mess with my stepper drivers and I cannot get my adjustments to move... am I missing something here?? First I can’t find a Phillips head screw driver that’ll fit in it because the point on the end hits before it mates to the Phillips part of the adjustment. I filed down the tip and still same thing the case seems to move only and it hasn’t changed anything.. how much of a move does it take to actually make an adjustment? What am I doing wrong because I honestly feel like I broke the cage around the screw.

Second question.. I’ve done 2 pids for my hot end and it’s still 10 degrees off what can I do

Da Vinci 1.0 Azteeg x5 mini WiFi running Smoothieware, e3d v6.

30 Reply by yizhou.he

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Re: Bed leveling issue.

you don't have to use phillips head, flat one will work if size fits. non-metal screw is preferred.

https://www.thingiverse.com/thing:802653

https://www.thingiverse.com/thing:709811

Not sure what problem you are describing, can you be more specific what the case means? or picture of your pot?

(Da Vinci 1.0, Jr. 1.0 RAMPS, miniMaker) X4, (Creality CR-10S, CR-10 mini, Ender-3) X4, Anycubic MEGA X4, Anycubic Chrion X1, ADMILAB Gantry X2 (MonoPrice Maker Select V2, Plus, Ultimate)X4--Select mini X1, Anycubic photon X4, Wanhao duplicate D7 X1.
iNSTONE Inventor Pro X2, CTC Dual X2, ANET-A8, Hictop 3DP-11, Solidoodle Press, FLSUN I3 2017X1