Set & Send

for Snapmaker U1

A free OrcaSlicer add-on that sets up every U1 print the way Snapmaker Orca does. Right before you print, see which toolhead prints each filament (matched to the spools on your U1), and switch on auto leveling, flow calibration, time-lapse, auto-refill and more.

Download free (v1.0.5)

Free and unofficial: made by LayerLab, not by Snapmaker. Works with OrcaSlicer 2.4.0 or newer, including the 2.5.0-alpha and Nightly builds (which install?), on Windows and macOS (Linux untested).

What it does

Click a toolhead to pick another.

Advanced options.

After a Cancel, it shows how to print again.

Install

Works with

Which version do I have? In OrcaSlicer, open Help > About OrcaSlicer. "alpha" or "dev" in the version means the plugin; a plain number like 2.4.2 means the script. Both do exactly the same thing when you print.

The plugin doesn't work in 2.4.2 or older. Those versions have no plugin system and skip it without a word, so the print goes straight to the printer with no pop-up. Use the script there.

Tested on: Windows 11 (plugin and script). macOS: the plugin was tested by a U1 owner; the script hasn't been tried on a Mac yet. Linux: not tested yet.

Before you start: connect OrcaSlicer to your U1

You'll need the U1's IP address. It's on the printer's touchscreen in its network (Wi-Fi) settings and looks like 192.168.1.50.

1. Select your Snapmaker U1 printer, then click the Wi-Fi icon next to Printer.
2. Type the U1's IP address into Hostname, IP or URL.
3. Click OK.
4. Keep that printer selected whenever you print to the U1. If Print stays greyed out, the printer you have selected has no IP address.

Option A: Plugin (OrcaSlicer Nightly or 2.5 alpha)

Step 1: Subscribe to it. Plugins come from OrcaSlicer's website.

1. Open Set & Send on the OrcaSlicer Plugin Hub in your browser and sign in with your OrcaSlicer account (the same one you use in OrcaSlicer).
2. Click Subscribe.
3. In OrcaSlicer, make sure you're signed in to the same account, then click the small file icon next to File at the top left. That opens the Plugins window, which lists your subscribed plugins. If Set & Send isn't listed yet, click Refresh.
4. Tick the Activate box on Set & Send's row. It changes to Activated.

Step 2: Allow it to talk to your printer. This only happens once.

1. The first time you slice for your U1 (after Step 3 below), OrcaSlicer asks whether Set & Send may connect to your printer. Check the address is your U1's and click Yes. Your first Print then goes straight to the pop-up.

If the address isn't your U1's, click No and set the right IP with the Wi-Fi icon next to the printer name. To check the connection any time, click the play button next to Check U1 connection in the Plugins window: the status bar shows what's loaded in each toolhead.

Step 3: Turn it on in your print settings.

1. In the Process settings on the left, make sure the settings switch next to Process isn't on Simple (hover over it to check: Advanced or Expert both work). Then click the Others tab and scroll to the bottom.
2. Under Slicing Pipeline Plugin, click Add plugin.
3. Choose U1 print setup — Set & Send.
4. Click OK.
5. Click the save icon next to the preset name. U1 print setup now shows in the list.

Do step 3 for each U1 process preset you print with. Step 4: press Print as usual. OrcaSlicer's own upload window opens first: click Upload & Print, and the Set & Send pop-up appears. Use Print, not Export: the pop-up and print options only happen when OrcaSlicer sends the print to your U1.

Option B: Script (regular OrcaSlicer release)

Step 1: Install Python. Download it free from python.org. In the installer, tick Add python.exe to PATH.

Step 2: Get your setup line. Download Set & Send, unzip it somewhere it can stay (for example Documents\Set and Send) and double-click set_and_send.py. A window shows the line for your computer, already selected: press Ctrl+C (Cmd+C on a Mac) to copy it.

Step 3: Paste it into your print settings.

1. In the Process settings, make sure the settings switch next to Process isn't on Simple (in Simple mode the box below is hidden). Then click the Others tab and scroll to the bottom.
2. Click inside the Post-processing Scripts box and paste (Ctrl+V).
3. Click the save icon next to the preset name.

Do step 3 for each U1 process preset you print with. Step 4: press Print (not Export), click Upload & Print in OrcaSlicer's upload window, and the same print options appear in the script's own window. Use the plugin or the script on a preset, not both.

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