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  1. #1

    Help with finshing 3D printed props

    Hi all,

    I have spent the past year getting to know my 3D printer and getting all the settings dialled in and getting the best quality prints I can straight off the bed. Now I am starting my first 3D printed prop and this is where I need to help and advise (I hope this thread is in the correct group)

    I have wet and dry sandpaper of varying grits and this is a good start to smooth out the print lines. However, I need to do some filling. Some are large areas and some are small indents that need filling. I see in the most of the videos people use Bondo Spot Putty. However in the UK, this is really expensive to get hold of, some people are charging up to £43 P&P!!! can anyone in the UK suggest a product that's not too expensive to use for filling large areas and small areas.


  2. #2
    Join Date
    Aug 2015
    I found a website that is called Youtube, that has some information on that subject
    you might find more.

  3. #3
    Hey, there is this thing called sarcasm it's super useful!!!

    Just hoping that the reply from this is the normal standard of useless reply on this site

  4. #4
    Super Moderator curious aardvark's Avatar
    Join Date
    Jul 2014
    if you mean epoxy putty - poundland sells it. not so expensive :-)

    The other thing you might try is ordinary gap filler. Big tubes from all good discount and pound shops :-)

    Sandable, paintable and shrink and stretchable as well - so it says:

    They sell actual squeezable tubes in poundstretcher as well - but they don't have a searchable website.
    And all good hardware stores will also sell it.

    Got to be worth a try :-)
    Last edited by curious aardvark; 06-15-2017 at 10:46 AM.

  5. #5
    Thanks, curious aardvark I have some test pieces to work with that I have printed out. I will give this a try.

  6. #6
    Engineer Marm's Avatar
    Join Date
    Sep 2014
    Add Marm on Thingiverse
    Prop as in cinema? Or Prop as in Boat propeller?

    For my RC yachts I use this nasty green stuff. I forget the name, i get it from the hobby shop, but it's been around a while, and it's got some chemical that's a skin irritant, but it works like bondo, pretty cheap, and is specifically made for plastics. Sands down easily and paints very well. I guess it'd work pretty well for stage props too I guess. Or you could be making a prop prop.

    After a bit of googling, it turns out it's called "green Putty" by MMD.

  7. #7
    Has anybody had any experience using this?

    I've been meaning to give it a try, but I haven't had a need for a real smooth finish on anything yet.

  8. #8
    Engineer Marm's Avatar
    Join Date
    Sep 2014
    Add Marm on Thingiverse
    I haven't tried that particular product, but the smooth-on products I have tried are wonderful, if expensive.

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