VAT DRAIN PERISTALTIC PUMP FOR SLA PRINTERS r2.0

Well, til now almost 90% of my prints come out very fine (remaining 10% were my mistakes). I'm very satisfied!
The only nuisance is the VAT draining, a dirty and tedious job; sniffing around I found the very interesting Garagem Fab Lab's peristaltic pump, I immediately felt in love with its semplicity and promising power.
But (there's always a but) I don't like much open-frame machinery, so I stole some well designed parts from Garagem Fab Lab and re-designed all the stuff.
The first remix has been adding a bearing ball to the pump axis; after all we're working with plastic...
Then I added top and bottom frames to keep the pump unaccessible from outside (you know, Murphy law strikes when unexpected).
I completely removed the teeth gears, using instead a directly coupled Nema23 I had somewhere.
I designed a tiny filter too (see images) to drain directly into your resin jar.

During tests I had a good 250ml/min flow rate with water.
Of course with resin the flow decrease, but still very acceptable.

The complete project is at https://www.tinkercad.com/things/dPdnqOjQVe2

Personally I printed all stuff with my MSLA, but brave hearts could try to print them in ABS or PLA.

Simple code to make it run is included.

You can watch it working at You can watch it working at https://dai.ly/k3bSc8cVsxSCaQySU5p
Hope you'll like it!

REMIXES
The only remixed items are:
- body_top
- motor_adapter
- motor_coupler
- rotor_top

BOM
- n. 1 Arduino Uno
- n. 1 Nema23 stepper motor + driver 4A
- n. 1 12VDC 5/10A PSU
- n. 6 608ZZ bearing ball
- n. 1 F686ZZ bearing balls
- n. 1 9x6mm latex hemostatic lace
- n. 1 6x31mm rod, to refine on site
- n. 2 10x1 M6 washers
- n. 1 Mesh 250, 62µ (or similar) sieve
- n. 14 M3x12mm screws
- n. 8 M3x15mm screws
- n. 8 M3 nyloc nuts
- n. 2 M3x10mm grubs
- n. 2 M3 nuts
- n. 4 M4x40mm screws
- n. 6 M4x25mm screws
- n. 10 M4 nyloc nuts
- n. 4 M5x20mm screws flat head
- n. 4 M5 nyloc nuts
- silicone grease

INSTRUCTIONS
- grease well motor_adapter inside and motor_coupler adapter

ABS-like resin