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Thread: Vacuum Frame Question

  1. #11
    Tin Can's Avatar
    Join Date
    Dec 2011
    Posts
    18,961

    Re: Vacuum Frame Question

    I have a Nuarc Vac frame with perfect OE glass and OE rubber seal full of good holes

    My Nuarc vac pump came with a vane kit, my glass bottles are very clean, the bleed off works fine as proven by the vac gauge

    I have the pump hooked up with stiff vac hose. The pump switch is mounted on the wall in easy reach, the pump is quiet

    I usually have it under a 5X7 Enlarger, but it moves easily

    I have all parts for a 20X36" 1/2" tempered glass ALT contact printer with 365mm LED lamps

    I have a dedicated bench for it

    I like to plan ahead and can prove it with pictures
    Tin Can

  2. #12
    Drew Wiley
    Join Date
    Sep 2008
    Location
    SF Bay area, CA
    Posts
    16,658

    Re: Vacuum Frame Question

    I no longer use vacuum pumps, though I have them in storage. I do have several high quality domestic made oilless compressors from the same outfit that now makes those pumps only for industrial vac lines. My current drawdown vac easel system is based on plug-in hose ports on the wall, with the vac isolated in another room. All high quality stuff, variable-power, bleeder valves, HEPA filtered air going out, quiet if needed. Footswitch triggered at the workstation. My two largest vac easels handle up to 30X40 inch paper. But I don't do any UV work.

  3. #13

    Join Date
    Oct 2019
    Posts
    15

    Re: Vacuum Frame Question

    Some cursory googling shows a fair number of reasonably priced ones for sale on Amazon and the like. Obviously, something that doesnít leak oil is appealing. But what should one look for in a pump? Is there a minimum amount of power, or will essentially any of them do?

    The point about traditional contact printing frames is well takenóand indeed, I currently use an 11x14 split-back one. But Iíd like to go larger, and Iím not convinced they can generate enough pressure, hence my original question about the vacuum frames.

    I appreciate the feedback. And certainly envy some of your setups!

  4. #14

    Join Date
    Feb 2007
    Location
    Grand Junction,CO
    Posts
    1,020

    Re: Vacuum Frame Question

    This is what I have used and is what is in my Nuarc plate burner. It’s a diaphragm oilless design. Those pumps shown in your original post work good also but you will need to install an oil mist filter on the exhaust which will cost about as much as the pump. Without the filter a fine mist is exhausted and unless the pump is in another room or preferably outside you’re living and breathing oil mist. I’ve never used a frame like the one you linked to but it looks like it could work fine, my only concern would be poking a whole in the membrane or how to safely clean and dust the membrane without scratching it up?
    https://www.ebay.com/itm/16363226945...waAjXOEALw_wcB

  5. #15
    Drew Wiley
    Join Date
    Sep 2008
    Location
    SF Bay area, CA
    Posts
    16,658

    Re: Vacuum Frame Question

    Amazon and the like - you me the toy store? Unfortunately, good pumps aren't cheap, but might turn up quite reasonable on the used market under Graphics Supply and Industrial listings. You can get good diaphragm pumps from an outfit like Grainger fairly reasonably. But they do pulsate, so I'd never use them for a vacuum easel below and enlarger column, at least for fussy work (been there, done that). Might be fine with a contact frame.

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