Elegoo Saturn 8K Split heater, cover riser, heat & fan controller

thingiverse

Update 1/16/24: Printed in ABS-like resin and the housings are holding well so far. The temperature in front of the heater is reaching about 70C with fans on.Added modified housings models.Update 1/8/24: After about 5hour print the heater cases failed - left melted with the heater almost falling down, right was not as bad but also affected. I wouldn't recommend to use these unless you use use some heat resistant material. I'll go my original thinking and just bend some basic aluminum cage.My previous version works but I hate the fact that the heater is basically heating a top corner of the plexiglass cover which caused some partial melt and bulging of the side of my cover. I've installed aluminum tape in the corner but didn't extend wide enough so that cause the plexiglass to distort a little. I also disliked the fact that the fan is running all the time, no matter if the heater is on or not. The air surrounding any 3D printer when printing should be as calm as possible, that's why we have the covers and enclosures.Risers are now connected using 1/8" thick, 3/4 x 1 1/2" alu plate with 6-32 tapped holes, approx 1" apart.The heater is the same capacity - 100W but split into 2 halves, mounted on the top of Z axis tower plate tilted little bit forward down. Dual temperature controllers allow to control fan operation when needed. I have to set it up to start cooling when heater reaches 38C and turns off after the heater cools down to 28C (basically just higher then your heat set temperature). Cooling controller probe is mounted in the front and directly touching the heating element for the most accurate reading and to prevent overheat. Heater controller temperature probe is mounted near center front in the wall of riser to read the temperature of the resin vat, not hot air blowing from the heaters.Front center thermometer is measuring the temperature bottom middle at the screen level so no need to turn on heating when temperature is high enough. Power is provided by split USB cable providing 5V of power ( can be hooked up to any 4 - 25V source).Here is a hardware I've used:Front thermometer - 1ea - https://www.aliexpress.us/item/3256805851919512.html?spm=a2g0o.order_list.order_list_main.13.ce351802Aqsy0E&gatewayAdapt=glo2usaHeat + fan controllers 1+1ea - https://www.aliexpress.us/item/3256805978857931.html?spm=a2g0o.order_list.order_list_main.19.ce351802HNRr56&gatewayAdapt=glo2usaHeaters -2ea - https://www.aliexpress.us/item/2255800043788336.html?spm=a2g0o.order_list.order_list_main.25.ce351802HNRr56&gatewayAdapt=glo2usaFans (30x30mm 12V) - 4ea - https://www.aliexpress.us/item/3256804849280938.html?spm=a2g0o.order_list.order_list_main.45.ce351802HNRr56&gatewayAdapt=glo2usaScrews are all 6-32, various lengths