Wanhao D7 MEGA MOD

thingiverse

Currently used soil moisture sensor does not work, failing to trigger relay so I must find something that detects resistance better than this cheap sensor. Update June 1: Redesigned SwitchCover with no wires outside. Pump will function better when flipped upside down. Base_R and MotorMount need reprinting due to height changes. MotorMount now directs the tube into the right corner of the VAT for easier resin pickup. I will post final results for Base_R, MotorMount, and SwitchCover soon. The Base_L remains questionable as I still don't know what sensor to use. I will remove "Work-In-Progress" once I figure that out. This is a multiple issue solution mod. It addresses several key issues: ###1 LCD Height Compensation LHC It fixes the height difference between the FEP film and LCD, which currently results in the FEP bumping into it because the LCD sticks out 0.6mm above the frame. ###2 Reversing Bolts This makes it much easier to remove the VAT without needing to lift it over the bolts. If you don't want the pump setup, just get the "VAT Level and Guide PLA." It will help drop the VAT dead center so you can insert bolts from the top more easily, also providing LHC feature. ###3 THE PUMP (DC12V 300mA D2 2*4 dosing pump) (additionally ID 2mm OD 4mm silicone tubing needed) Switch has 4 positions (3P4T selector switch). OFF/AUTO/SUCK/PUMP as explained in the image. I am still working on the floater that would activate the micro switch, but you can come up with your own if you want. I am currently looking for some way of closing the circuit once fluid level is reached, but I haven't found anything yet. For this reason, the design of the frame Base_L.stl will change based on what hardware I find. The design of the Base_R.stl where motor and switch mounts are located is likely to stay the same. Print at 0.6 or at 0.3mm or at 0.2 or at 0.1. Otherwise, height compensation may be incorrect. Inserting bolts from the top solves multiple problems: A) Never drop a knob into a VAT. B) No need to lift VAT over bolts. C) No need to lift platform as much to get the VAT out.