SKR 3 Review and Install | Anycubic Mega S control board upgrade

Hi, what i need all for the upgrade ? Original Dispay now fit to new board same the Anycubic break out board for hot end etc.

Good work! But why you don't show in zoom your wiring?

Hey JJ you sure get a lot of mileage out of your gift of gab. Do you normally talk that fast or was your teleprompter that speed?

You glossed over the unusable screen, and totally left out Marlin configuration.

You chose to control this completely with Octoprint..thus, no touch screen needed.

Configuring Marlin and the MAJOR rewire are significant hurdles. Plus the need for a Pi.. Here we are.a year after the pandemic and they are difficult to find and still have high prices.

Oh, one more thing, you neglected to the need for a good fan setup to cool the drivers... yet another kludge.

Too much fun for me. I'll pass on this. Too make better printers available.

Super helpful video! Since you are using a 12v power supply even though the board is rated to output 24v, does it actually just output 12v instead? Essentially, do you wire it as normal and not have to swap out the hot end, heated bed, and fans to 24v since the power supply is 12v? I'm confused how to use this board with a 12v 3D printer.

Is it possible to still use the touch screen with a new mainboard or does it have something proprietary that prevents that from working?

This video is amazing ! Gracias por tu ayuda, parece que podre revivir mi Mega estropeada. Si gustan le ire contando

Hi, I have a big problem on the wiring, where I should to place the three cables of the X_MAX_PIN???

Well i installed new fans and step motors on my anycubic mega s. Followed the instructions. Now my printer aint working . makes odd noises when i go to print.
downloaded firmware through cura. On the info screen on My printer it says firmware v1.10. Not sure now what to do. When I installed marlin with reversed plug ins. seems nothing helps.
also when it goes to print. it seems like it tries to print on the back end almost over the edge.. HELP IM Drowning!!

I don't know how to configure the SKR board with only 1 z endstop to accept both stock z endstops and to control each motor. I' using an SKR mini E3 V2. I see you are just using a BL touch, so if i save the headache and go that route, how do you ensure your gantry is trammed?

Hey JJ awesome vid! This has been a great reference for me when rebuilding my i3 mega around the SKR 3. One question, what Hotend are you using? The last and only issue I'm having is running my stock 12v Hotend, even with a stepdown regulator.

Hey great video man! Definitely learned some stuff and gave me a better direction for my project. I’m strongly considering putting the SKR 3 into a Anycubic Kobra (the first model with the DD). I’ve already added a second z rod and Motor and have changed some of the Marlin firmware.

From your experience, do you think think this will be doable on a kobra? I know it’s a different printer than your mega s, but since the SKR 3 is geared towards DIYers, it should work right? Obviously gonna throw klipper and a new screen on their also.

I am little confused, how I can save my config from my stock i3 mega firmware?

JJ Shankles I have a trigorilla pro and i3 mega- hub v2.0 I am struggling to find resources is there any way to help

Hey man im having some trouble hwre figuring out what to do to get the screen to work with my skr 3 how do you tap into the ribbon cable or can i just plug the into the tft port on the skr3 and abbandon the ribbon from the sd slot?

Hello JJ,

Please, tell me what configuration you used for the steppers (jumper under the steppers)?
Did you keep the 4 ?

Does the skr mini v3 work? You don't use mosfets for the bed and hotend?

I'm considering this board for my Anycubic Mega X. I am assuming based on the fact that you removed the front touch screen, that when using Klipper, that front touch screen becomes something that is no longer necessary? If that is true, would it then be useful to get an HDMI based touch screen for the Pi 4?

hey everyone i need help my trigorilla board dc regulator blown up so had to buy a new board and decided to go with the skr mini e3 v3.0..... but the wiring is a bit different from one to another.... my issue are
1.from the hub board the hub connection to the skr
2.the y axes endswitch of my anycubic has 3 pin and connector of skr 2 wich wire or do i connect it somewhere else instead
3. i have dual z stepper driver so for my firmware the zbm wich pins do i have to use....
4. also have dual z endswitch so where do i connect my second endswitch ?
i think this is mostly it please help

It makes no sense to run Klipper on this board. Marlin & Reprap would be dope!

Great video, unfortunately I only have bad experience with BTT. My SKR2 was completely killed including 5 TMC 2209. Unfortunately, the support is not able to change the board. Is only 4 months old. TMC stepper_x (y,z,z1,extruder) failed to init: Unable to read tmc uart 'stepper_x' register

Would it be possible to get a picture of your wiring configuration? Was having massive problems with my mega and it was apart and I stupidly didn't have everything labeled since it was supposed to be a quick fix. 3 months later, new board, hot end, ect ect... I'm a bit lost now lmao.

Hi, what is the highest print speed you achieved after all these upgrades without loosing the quality much?. Let's say we stick with 0.2mm height.

So I just completed my SKR 3 conversion and I have been fighting a Z offset issue for a few days. No matter how many times I run the auto level I can’t seem to get a truly level initial layer. First layer is about twice as thick on one side of the bed as the other. I can see the z screws working as the print is running so I know it is trying to use the bed mesh. I’m missing something. I just got to thinking today that I’m not looking at either of the physical z limit switches. Therefore if I accidentally bump one of the z steppers when the power is off I’m going to create a mismatched z offset.

Is there a way to get the SKR 3 to test for level between the z motors?

many thanks, question, do you have a picture /diagram of the wire connections from the psu to the motherboard? I’m not sure what terminals the 2 pairs of red and black wires go to on the skr3, on the original mega s mobo they went to 5a & 11a . I just don’t want to mess it up.

I think the MOSFET for Heater0 is toast and I'm trying to configure Klipper for Heater1 output. For some reason I can't get it to work using pin PL4 in my config file. Any suggestions where I can get a good pin mapping?

Would this upgrade be a better spend rather than upgrading the MOSFETS to external?

Hi JJ, do you have a link to your git-hub config please?

Where that filament runout sensor is positioned it's essentially worthless. Every time my filament has broken it's been between the sensor and the machine, so it didn't trigger anyway. You don't actually need to jam anything in there, if you start the print with it empty it just ignores it.

Just a heads up for people: don't get racheting crimpers for jst-xh or Dupont or any similar crimps. They are much more difficult to use then the spring loaded non-racheting ones

You keep solving problems for me. 2 fan mosfets are burned out on my Mega's board, and I was wondering whether to order mosfets and try to do SMD repair or just order a new board.

Your Mega S videos are extremely helpful as I have two, so thanks for keeping them going. I do recommend them for being good starter printers out of the box.