Washout brush

Hi everyone. Does anyone have a machine for the manufacture of polymer plates? I want to order the manufacture of a washing brush at local brush-making factory and planing to make a washing machine myself as its design is quite simple. I’m wondering what are the parameters of the wash brush such as bristle (pitch) step, bristle length and approximate diameter of the tuft of bristles, the amplitude and trajectory of the brushes (or the polymer plate) in the washing process and if possible can someone send me photos?

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Hi Fram, I’ve been using a horse hair shoe shine brush for several years with nice results.

i spose so now that i think it, but,,,, i had no idea a brush had that many parts. with names.

I think there was someone not long ago on here who did the same thing you want to do, make a washout machine. If you could locate that person with a search on this list you might be able to get details about construction issues, etc. You also might just order a replacement brush from one of the machine manufacturers which would be easier and cheaper maybe then having a one-off brush created at a brush factory.

Pack in the 60s or so Heidelberg sold a Polyment plate set up which had a circular washing out bath about three feet across, with sidewalls maybe 8 inches high. The bed was domed, perhaps an inch and a half to its centre and that was covered with a pile velvet material. The whole was flooded , with the wash-out solvent to just cover the top of the dome, and one placed the exposed plate ( the porous nylon based material was supplied by BASF) on a carrier bloc, face down , with a handle on the back. One swished the thing face down on the velvet for maybe four-five minutes (its a long time ago, the memory fades, ) with frequent stops to inspect the depth achieved. When done simply wash with water and dry. Any amateur could do this stage A problem was disposal of exhausted solvent - now syrupy, and you couldn’t pour it down the drain. Trust this is helpful

I have talked to a guy who uses a painting “speedbrush” for cleanup. You can buy them in quite large sizes so maybe they’d do the trick.