[SOLVED] PowerSpec Ultra dual extruders misaligned.

[JackDark]

This post is for people having trouble getting their dual extrusion prints aligned on their PowerSpec Ultra 3D printer (the version with the touch screen). The following should also work for the Flashforge Dreamer machine if you are having the same issue since that version of the PowerSpec Ultra is a clone of the Dreamer.

Now anyone will tell you that doing the following is a bad idea, but unfortunately you're completely out of options with this printer as it's closed source and unsupported so you're not going to be able to update the Firmware. This is the last resort option.

This first step is not actually necessary due to the next step overwriting it. However, if things actually change with the firmware in the future it could be helpful.

In the [Show Advanced > Scripts > Starting Script] tab:

Find:
M612 X34.5 Y0.0 ; Set toolhead offsets

Replace that with:

M218 T0 X0.0 Y-3.0; Set right toolhead offset
M218 T1 X35.0 Y-3.0; Set left toolhead offset


Again, the next section overwrites this, so I'm not completely certain that the 35mm offset is 100% accurate. The important part is just having the correct M code and listing each toolhead for the future. Shouldn't be hard to dial in if it ever becomes useful.


Next, in the [Show Advanced > G-Code] tab:

On the left, check the Apply toolhead offsets to G-Code coordinates box.
Below that in the Global G-Code Offsets section, update the offset values to:


X-Axis: 4.60
Y-Axis: -3.00
Z-Axis: 0.00


Updating these settings in conjunction with the settings below will center each toolhead right in the middle of the print bed. You can keep the Global G-Code Offests zeroed out and add the above values to the toolhead offsets (explained below) if you wanted, but I prefer to keep the toolhead offsets as close to zero as possible. It's really up to your personal preference.

Check the Update Machine Definition checkbox on the right and set the Toolhead Offsets to the following:


Tool 0 X:0.40 Y:0.00
Tool 1 X:0.00 Y:0.00


Click Update Profile at the top of the settings window to make sure your changes are saved. Unfortunately, putting these changes in will mean that your dual extruder prints will be offset in the preview window. If anyone knows how to fix that, I would LOVE to hear from you. While the preview may look off, at least your prints will finally be aligned.

[opy01]

I've been having issues switching tools when the offsets are in the firmware, it goes extremely slow (20 second toolchange). Today I decided to put the offsets in S3D and remove them from firmware. The first thing I noticed is I have to put positive in as negatives and negatives in as positive compared to Repetier's firmware. If I do not do that it does not print correctly. I now have it printing near perfect, other than some minor adjustments to the offset, but the preview mode is very annoying that it will not line up the model like it prints it.

Please someone tell us how to make preview look correct when using offsets.

[DarthRevan]

Please someone tell us how to make preview look correct when using offsets.

uncheck the box for apply toolhead offsets to g-code and you'll have a perfect preview of the same slice just without the g-code being offset. Just make sure to turn it back on before sending to the printer.

[opy01]

Not really a fix. It's bad enough going into 4 processes to edit settings in each one, but having to uncheck that in all 4 just to preview it then check it back to send to printer? What there really needs to be is a "preview offsets" choice in the preview area. I'll see if there is a feature request for this.