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  1. #1
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    Cube 3 Wiper Blade Cookie Cutter

    1.JPG
    2.JPG

    Cutting wiper blades from silicon sheets with an X-acto knife is fairly difficult. I kept cutting a little too far and ruining the piece. So I decided to try and make a cookie cutter.

    I worked with ztoddman1 on this and he had the idea to use a square tube to cut the hole in it.

    I ordered this one >>> https://www.grainger.com/product/48KU50 and it works fine.

    I used a tin soup can for the cutting blade. ztoddman1 used a razor blade and removed the temper. I think this is a much better idea. I will let him explain how he did it.

    The tin piece (or blade) needs to be 10 mm x 44 mm. I used a file and sand paper to clean the edges and sharpen one side. A Dremel should work for this too (Of course you won't need to sharpen it if you use a razor).

    BE CAREFUL!! SHARP EDGES!!

    3.JPG

    I also made a guide for bending the blade.

    You need a tin can and something to cut it with (or a razor) and 4 screws.

    Screw.JPG
    #4 x 3/8 - 11.7mm x 2.8mm (x4)

    Many thanks to ztoddman1 for all his ideas and testing!!





    Download the files here from Thingiverse >>> https://www.thingiverse.com/thing:2597862

    ** Note
    Some changes have been made since posting the video and pictures so they don't look quite the same. They still function the same though.
    Last edited by MegaloDon; 10-21-2017 at 06:55 AM.

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  3. #2
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    Glad I could be assistance and a VERY SMALL contribution to this awesome forum and printer.

    I used the first original parts prior to the metal bending guide in which that one will be attempted soon and hopefully will produce good results as did the first attemps.

    Obviously there are 3 major parts to this (even though there are 7 total pieces) the bottom, top and the lever.

    I focused on the bottom part and instead of using metal cut from a tin can, I used a single edged razor blade. On that, shouldnt have to state the obvious but she's sharp so be careful!

    Step 1- heat the blade to cherry red with a blow torch and let it cool slowly so it can be handled with your hands.
    Step 2- break off the handle to the actual blade is roughly 10mm.
    Step 3- start at the smallest part of the die, center the razor blade ( sharp side up) and using needle nose pliers, slowly bend and form the angles. I used the little 4 corner pieces to help with the bends and hold them securely.
    Sept 4- slowly work your away around each side and the razor blades will meet perfectly together.
    Will not be enough for the little 1mm cut but once the rubber is cut, use a razor knife to cut that.

    Kinda vague but will get some pictures and maybe if I get courage, a video!
    Last edited by ztoddman1; 10-22-2017 at 04:53 AM.

  4. #3
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    Quote Originally Posted by ztoddman1 View Post
    Me brain had way too many irons in the fire.
    Yeah I have the same problem. But sometimes I manage to focus on one thing long enough to get an idea out.

  5. #4
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    Not me! But brainstorm- get a square tube, cut at angle, sharpen the edges like you did with the tin can, design a block that the silicone wiper can fit perfectly in. Almost like a hole punch. Somehow incorporate a 2 piece form like u did with the nut on the hot end.
    What the hell did I say? I can sketch something to give u an idea of what my mush is thinking.

  6. #5
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    Quote Originally Posted by ztoddman1 View Post
    I can sketch something to give u an idea
    Please do! My brain hurts.

  7. #6
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    oh snap, called me out on it.
    lemme draw it up real quick.

    - - - - - - - - - -

    ok, a VERY VERY quick sketch using tinkered and then to thingiverse. not intended to have accurate dimensions just to get the general gist. the square tube would be brass or aluminum sharpened.
    https://www.thingiverse.com/thing:2522893

  8. #7
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    It's not there. Did you publish it and make it public?

  9. #8
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    Heck no but it is now

  10. #9
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    Something like this?
    https://www.grainger.com/product/48KU50


    - - - - - - - - - -

    Quote Originally Posted by ztoddman1 View Post
    This could be incorporated into my design if it didn't have the angle cut. The length would be very critical though and it would be harder to cut because it doesn't have the other half to press it into.

    On the other hand, mine could be modified to have another half to make it easier to cut. It would require a guide to make sure the 2 halves line up (like a hole punch) and your idea could be incorporated (with the angle cut). I think you should take mine and combine it with your idea and design it yourself. I think this might be a better solution. And I would like to see other people involved in the design process.
    Last edited by MegaloDon; 09-10-2017 at 06:37 PM.

  11. #10
    Administrator bolsoncerrado's Avatar
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    Holy Moly! Good job man!

 

 

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