This is an electronics enclosure for the CTC A10S mainboard. This is for the purpose of eliminating the big hocking black box that sits alongside the printer, and for integrating the printers electronics.
Version 1 of this model was designed as a temporary solution years ago. I was never quite pleased with it, and finally got around to finalizing the design. This version, version 2, will likely be a more difficult print than the original model that was broken down into parts that could all be printed flat, then glued together. The only piece of version 2 that requires gluing is the face to the base. The lid is NOT intended to be glued!
I did provide a provision for a MOSFET for the heated bed. I wanted to keep the cable mess to a minimum, so I crammed the MOSFET inside the back of the enclosure. I should have lengthened the case a bit before adding the MOSFET location as it's a pretty snug fit between it and the rear bulkhead connectors, but since version 1 worked well for so long, and my CTC A10s is currently in shambles. I'm printing this on machines with only 220mm on the X and Y axis's.
I originally used the factory 5010 board cooling fan that came in the big black enclosure and mounted it to blow directly down on the mainboard. That fan has since died, but I replaced it with another 5010, so the retainer is unchanged from version 1 of this model. Air circulates well enough to vent out the rear of the lid and the two sides. I did not reuse the rear vent fan from the big black enclosure as I noticed it was seized solid when I opened it up to swap the dead power supply. It was the dead power supply that precipitated this stand-alone change. The replacement power supply I bought was a Meanwell and it did not mount nicely in the stock enclosure. I'll probably dig up the STL for the power supply mounts and add to this later, however, they are for the Meanwell power supply so they won't fit the stock one anyways...
I've noticed there are no standards for the hardware used on the CTC A10S printer, so this enclosure may or may not work with some boards included with the A10S. I will say that the mainboard included with my A10S is identical to the mainboards that came with my Anet A8 and Anet A8 Plus if that helps.
This enclosure mounts inside the lower frame on the left side as viewed from the front. It requires the printer profile to be elevated by 23 millimeters. I included foot extensions that attach between the rubber feet and the frame with 25MM M4 screws. The enclosure mounts tilt and slip into the left side of the frame and are then attach to the center extrusion with M4 screws and T-Nuts. The assembled enclosure just sits in the two mounts.
Here's what's changed from the previous version: The rear panel, left side, and right side of the enclosure now print as a one piece. I moved the two holes on the back panel where the bulkhead connectors attach towards the large hole where permanently attached cables go through, and added a smaller hole on the left hand side for the X-gantry cables. Originally, I ran the X-gantry cables through the big hole on the right, but I noticed while printing extremely tall models that the cable had such little slack the old enclosure would be lifted from the two brackets holding the assembly in the frame. My old case didn't exhibit ventilation issues, but given how tightly packed everything is in the case, I wanted to increase air flow by both completely opening what used to be grilled inlets beneath the main board and mosfet and added more venting along the sides and face. I wasn't happy with the old “CTC A10s” logo hole on the face, so I redid the logo as a raised feature that could be easily colored with a sharpie. Overall, there is actually 16 square millimeters of space inside the enclosure as all the vertical parts were moved outward by 2mm since the new version base and three walls print as one piece.
Everything in this model prints well as oriented in the STL's without supports, except for the lid. Since I added a tab to slide into the backside of the case, I print the lid as oriented in the STL but with tree mode supports to the buildplate.
The author remixed this model.