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Stiff and waterproof material that Cougar Black Cat can cut? [Resolved]

RLWemmRLWemm Member Posts: 10
edited April 5 in Resolved Issues
I have just fired up my Cougar Black Cat cutter again, after a couple of years lapse due to illness and house moving.

This forum no longer recognized me.  I had to register again. 

My current problem is finding some stiff relatively rigid waterproof material that I can use to make forms for light weight concrete pouring.  The normal 3/8 inch foam core board will not fit under the knife holder or the rollers.  I cannot see a way to raise these things.  I have a small piece of 1/8 inch styrene sheet that will fit, but the material is fairly hard and I am not sure that the blades will cope with it without breaking. 

I could cover medium weight chipboard with stick on Mylar, I suppose.  However, the chipboard stock that I have just bought will not stick properly to the newly sprayed cutting mat.  Besides, I will have to cut several pieces and glue them together to get the material to be sufficiently stiff. 

One set of pieces will be glued together to form a "plug" inside a square plastic bucket mold.  The concrete will be poured or tamped in between the bucket walls and the plug in order to make the hole for the earth and plants.  I have considered trying to make this plug from the chipboard, covered with stick on mylar, with the inside given rigidity by spraying it with Great Stuff foam.   This might work - - or not.  The main problem is that it will probably only last for one pouring.  I would have to make a new one each time I wanted to use the mold. 

Another project is to make inserts for a seed grower that will hold 19 plastic cups upright.   It is round, with cup-shaped holes in it and eight "feet" around the edges that I will have to bend to a sturdy right angle.  The feet sit in water in the base of what is actually a round cake container.  It will be constantly damp.  I have no clue what to make these pieces from.
 
Any ideas?
Post edited by Gabe on

Best Answers

Answers

  • RLWemmRLWemm Member Posts: 10
    Semi rigid plastic would probably work.  Anything specific in mind? 
  • SandyMcCSandyMcC Member Posts: 6,848
    There are much thinner plastics that will should cut on your BC.  For example, the plastic signage materials sold at Lowe's (like For Sale sales) is essentially thin styrene and it will cut on a BC. 
    Sandy McCauley
    Cutting with KNK Force, Maxx Air, Zing Air
    Need help with your KNK? Visit this link: http://knkusa.com/contact/
    KNK / MTC Videos: http://bit.ly/1kmAcoO
    Latest KNK / MTC User Manuals: http://www.iloveknk.com/Support/user-manuals/
  • RLWemmRLWemm Member Posts: 10
    I am in the process of cutting some thick but still flexible plastic material that I bought from TapPlastics some time ago.  It is working, but blunting the 45 degree blade.  I am up to about the 12th pass now.  Some of the material is removable (and we have pulled it out) but the rest is still not cut through.  I am using 100 speed and 200 pressure.  Slow speed so the cutter does not heat up the plastic and deform it.

    Any suggestions for how not to blunt the blade, or where to get new or better ones?

    Thanks, Sandy, for your suggestion.  I will see what I can get delivered from Lowe's.  I have orthopedic problems that prevent me going to the store at the moment.


  • RLWemmRLWemm Member Posts: 10
    I have changed the machine settings to full pressure.  I do one pass which includes the bending dash-dot lines and then 5 passes without those lines.  It works.
    How do I upload a photo?
  • RLWemmRLWemm Member Posts: 10
    edited April 4
    Here are the photos.



    Straight from the cutter.




    Bent along the dashed cuts.




    In place, inside a Dollar Tree cake container, with plastic bathroom cups, also from Dollar Tree, filled with seed starting mix. 



    The home-made seed starting greenhouses stacked up and ready to plant, and then sit near the heater in a sunny spot until they sprout.  The cups are sitting on a damp paper towel placed in the bottom dish which is half filled with water.  Unlike last year, these cups will not be in danger of falling over now.

    The template was made on the Sure-Cuts-A-Lot program and I am happy to give it away to anyone who wants to try this method of seed starting for themselves. 

  • SandyMcCSandyMcC Member Posts: 6,848
    Nothing better than seeing photos of "SUCCESS!"  Congrats on getting the cut you needed and showing us how well it worked out for you!

    Sandy McCauley
    Cutting with KNK Force, Maxx Air, Zing Air
    Need help with your KNK? Visit this link: http://knkusa.com/contact/
    KNK / MTC Videos: http://bit.ly/1kmAcoO
    Latest KNK / MTC User Manuals: http://www.iloveknk.com/Support/user-manuals/
  • Di-liteDi-lite Member Posts: 2,930
    Very ingenious - make sure you put the bottom ones into the light as soon as the pop through or the will grow very willowy.  Well done.
    Have fun, Di, ID 14610
    UK, Cameo, Serif Draw, Win10.
    Link to My Craft Bazaar | Link to Skool | Force Bazaar - Archimedes
    Feel free to use anything in these links.
  • RLWemmRLWemm Member Posts: 10
    edited April 22
    The material I cut was this stuff:

    https://diffuserspecialist.com/wp-content/uploads/2014/01/Flexilume_S82-copy2.pdf

    It is exactly .020" which is about 1.27 mm.



    Post edited by RLWemm on
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