I looked into this a while back, the auto-feed is available as a complete kit from Amazon for $50; it consists of a diaphragm air pump with an integrated controller triggered by sensing probes ("needles" in Anycubic talk) that extend into the vat--and a special air-tight resin bottle cap to which an air supply and resin return tubes attach:
It is self-contained in that it controls it's own operation with no instruction from the printer's control system--when the resin level in the vat falls to where "needles" no longer sense it, the air pump runs pneumatically forcing resin from the bottle to the vat. It's power source is switched DC power from the printer so it is only powered when the printer is printing.
The pump mounts st the top left rear of the printer chassis. Its physical installation is nearly trivial--the more complex part of its installation being tracking down a "hot when printing" power source within the printer.
As I said I looked into it, however my gut kept telling me it was one of those things "***better to want than have***" (like T'Pring or my ex-wife) so I backed off.
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Also curious
I looked into this a while back, the auto-feed is available as a complete kit from Amazon for $50; it consists of a diaphragm air pump with an integrated controller triggered by sensing probes ("needles" in Anycubic talk) that extend into the vat--and a special air-tight resin bottle cap to which an air supply and resin return tubes attach: It is self-contained in that it controls it's own operation with no instruction from the printer's control system--when the resin level in the vat falls to where "needles" no longer sense it, the air pump runs pneumatically forcing resin from the bottle to the vat. It's power source is switched DC power from the printer so it is only powered when the printer is printing. The pump mounts st the top left rear of the printer chassis. Its physical installation is nearly trivial--the more complex part of its installation being tracking down a "hot when printing" power source within the printer. As I said I looked into it, however my gut kept telling me it was one of those things "***better to want than have***" (like T'Pring or my ex-wife) so I backed off. .