This is a mount for a replacement power supply unity for the Anet A8.
It is needed, beacause the PSU uses M4 screws which do not fit through the acrylic A8 frame and are positioned differently.
This is designed to fit for the 30A PSU which can be found at amazon.
PSUs that will work (examples):
To make sure, the PSU fits, compare it's dimensions with the dimension chart above (images section).
Needed additional parts:
You will need the following screws to mount the psu:
- 4x M4 x 16, head: truss head or barrel head (~4mm thickness, max. 8mm diameter)
- 4x M3 x 20
- 4x M3 washer
Size accuracy matters! So make sure your printer is well adjusted.
Before working on the PSU
Before you do any work on electronics, make sure the power line is unplugged! Never work on electronic circutes without unplugging it.
Step 1: Attach Frame to PSU
Mount the thing to the PSU using the M4 screws. The surface labeled "TOP" (will be printed into the frame") needs to be placed on the PSU side (not A8 frame side) between the top M4 threads of the PSU.
Simply use the M4 screws to attach the frame to the PSU. The screw heads will fit into the recesses.
Step 2: Make sure everything fits
Hold the PSU including the mount in the final position and make sure everything fits well.
In my case I had to bend some aluminium splines of the PSU to create a little space for the screw which holds the acrylic mount for the right Z-axis stepper motor. This will not harm the PSU terribly and does not make any difference in functionality or safety.
In any case it is very important that the mounted PSU does NOT create any bracing or strong force to your printer's frame. If you cannot gently tighten the screws without applying much force or the threads do not fit the drillings, do not mount the PSU! You might hurt or event break your acrylic frame.
Step 3: Mount the PSU
Use the M3 screws to attach the PSU to the printer's frame. Use the washers under the screw heads to spread the pressure on the acrylic frame. Hint: I would do this for any screws that are thightened against the acrylic frame.
The screws are screwed into the mount without using any nuts.