THIS IS A WORK IN PROGRESS
Xinkebot Orca2 Cygnus 3D Printer
The Xinkebot has been modified to use a Bondtech extruder and an E3D V6 hotend to be very reliable and durable. There is also another extruder available that is designed to be used with flexible filament such as NinjaFlex (very floppy) or TPU (medium rubber). Send a message to the group if you want to print flexibles. Currently, the Xinkebot is equipped with a 6mm ruby nozzle for fast reliable printing.
If the previous person did not clean the bed when (s)he was done, you will have to use a single edge razor blade to scrape it off, and then clean thoroughly with Windex before proceeding.
Next, view this video https://www.youtube.com/watch?v=fh5xY5OpKHQ up to the 3 minute mark. Instead of using a ruler, use the yellow plastic speed square with the base on the clean glass bed, making sure the extruder bar is exactly the same height on both sides (left and right). You can do this by raising/lowering the extruder as is done on the video, and get one side so that the speed square just barely slides under, then adjust the other side manually as in the video.
The printer should already have been leveled and autoleveled before you are using it (directions below), but the z-endstop height can drift, so check it as it is done in the video.
1. Turn on the printer with the switch at the back left of the bottom frame.
2. Choose "Tool" on the screen.
3. Choose "Manual" on the screen. This is the manual movement control.
4. Check to make sure the nozzle does not touch the bed when moving the Z-axis all the way to zero. Do this slowly choosing the distance on the bottom of the screen. It's OK to use 10mm increments if the nozzle is far from the bed, but go down to 1mm or even 0.1mm as you get closer. If the nozzle is at the appropriate height, then you are ready to print. If not, you will need to adjust the Z-endstop, which is manually adjusted on the Xinkebot as shown in the video linked above.
5. I recommend turning the screw just a little further (maybe 1/8 turn) clockwise as viewed from below to make the nozzle just ever so slightly closer to the glass.
Prepare the bed:
For the size of your print, smear a thin coat of Magigoo in the center of the bed.
1. Choose "Print" on the home screen. If you are not on the home screen, you can click the "back" arrow in the lower part of the screen.
2. The bed will heat up automatically.
3. The nozzle will heat up automatically then the print will start.
4. Watch the entire first layer to make sure everything is going OK. If not, you need to start over. Click the pause button, then the cancel button.
Do NOT attempt this procedure if you have not been taught how to do it, you could easily damage the printer. The auto-leveling procedure should not need to be done very often so you probably won't need to do this. If you find that your prints are not getting a good even first layer, then you will have to follow this procedure.
1. First, watch the video linked above after the 3 minute mark.
2. You will have to remove the Bondtech extruder assembly, and install the red flexible filament extruder assembly.
3. Follow the instructions on the video from here on out. Do NOT forget to remove the sensor when the printer is finished!
4. Put the Bondtech extruder back on and set the Z-endstop for the correct offset as outlined in the first 3 minutes of the above video.