1: GET CANISTER VACUUM WITH HOSE AND NOSLE

2: PEGBOARD AND MATERAL TO BUILD SHALLOW BOX WITH PEGBOARD AS TOP-IT WILL NEED TO BE BRACED INSIDE ESP TOP

3: CONNECT CANISTER HOSE TO BOX

4: PLACE MATERIALS ON TOP STARTING WITH SMALLEST FIRST-YOU WILL NEED STRIPS OF WHATEVER TO BLOCK OFF REST OF PEGBOARD-BETTER TO USE LAYER OF ACETATE OR MYLAR SAME SIZE AS TOP OVER THE NEG/POS/PAPER/WHATEVER-TURN ON VACUUM

5: YOU GOT HOMBREW VER OF PROCESS CAMERA BACK AS MANUFACTURED AND USED FOR LAST 75 YEARS OR MORE

FYI: GLASS BOCKS UV SO DON'T USE GLASS FOR ALT PROCESS

A GLASS TOP VACUUM FRAME IS OF NO ADVANTAGE OVER SPRING BACK FRAME OR GLASS LAYING ON TOP BY GRAVITY UNLESS YOU LET VACUUM PULL DOWN FOR AT LEAST 15 MINS-AND THATS WITH NEW HOSE, NEW PUMP, CLEAN FILTERS-EVEN THEN STILL NO IMPROVEMENT UNLESS YOU PIN REGISTER WITH PLATEMAKERS PINS AND YOU HAVE STRIPPED EVERYTHING INTO FLATS-GOLDENROD PAPER OR MYLAR MORE BETTER

30+ YRS AS A PHOTMECHANICAL ARTIST, 4/C STRIPPER, PLATEMAKER, PROCESS CAMERA OPERATOR ETC IS A GOOD PLACE TO START IF YOU WANT TO KNOW WHAT WORKS

OTHERWISE ASK A "FINE ART " PHOTOGRAPHER AND WASTE TIME AND MONEY -YOU OF COURSE WILL LEARN FROM THE RESULTING MISTAKES SO IT MIGHT BE WORTH IT TO YOU

NO GOOD DEED GOES UNPUNISHED