Power Supply Vertical Mount for TEVO Tarantula Pro

cults3d

This is an essential upgrade for every TEVO Tarantula Pro that enables sufficient cooling of the power supply. After successfully setting up my Tarantula Pro according to the manual, I noticed that the 24v power supply unit (PSU) was mounted with ventilation holes facing downwards on the ground, drastically reducing its required cooling. After about 30 minutes or so of printing, the PSU became extremely hot and couldn't be touched for long without getting burnt, which is unacceptable by any standards. I found that running a small desk fan pointed down beside the printer near the PSU provided sufficient cooling and prevented the PSU from getting warm. However, this solution wasn't elegant, so I decided to reposition the PSU vertically behind the z extrusion, similar to many other printers like Prusa. Building Instructions * MAKE SURE the printer is unplugged before taking anything apart!!!!* Implementing this mod is very easy and straightforward. I'm providing these instructions in detail despite their brevity. This mod doesn't require any additional bolts or nuts; only the ones currently in use are needed. After printing the parts, unplug the current PSU housing and disassemble it (definitely not at the same time!). Take a picture of the wire orientation before disconnecting any wires from the PSU. Keep all the bolts and t-nuts used. Next, attach the Top Mount to the PSU and temporarily to the extrusion about halfway up using the small button head bolt and two big bolts and t-nuts. Now attach the Bottom Mount to the bottom of the z extrusion using one big bolt and t-nut, screwing it in from the window where the power entry module will sit. Next, mount the power entry module (the thing with the switch) to the Bottom Mount using the screws that held it onto the original housing. The screws will thread themselves into the plastic mount, so some force might be required. Thread the power wires that connect to the MKS board through their little window and plug in all wires to the PSU, following the picture you should have taken earlier. If you didn't take a picture, look at the picture with the wires above or do some Googling. Now unscrew the top mount and slide the PSU into the bottom mount until the screw hole on the back lines up with the hole in the mount. Screw in the small button head small screw into that screw hole. Then tighten down the top mount. Double-check that everything is good and nothing is obstructing the bed or the z-carriage. If something is rubbing, you can loosen the bolts and slide everything to the left or right a bit before retightening. Additional Notes Print everything in 100% infill and make sure not to lose any bolts. I went ahead and added a little fan to cool off the power supply even more, as seen in the pictures. This isn't absolutely necessary, but it's a nice touch. Happy printing!