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Type: Posts; User: Cosmos275

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    Maritool. Top quality stuff, good prices.

    Maritool. Top quality stuff, good prices.
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    sale still on for a couple more days!

    sale still on for a couple more days!
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    10% Off CNC Accessories through July 4

    10% off CNC accessories now through July 4. Use coupon code SHOP0704

    Get more out of your machine with Pen Marking Tools and a CNC Drag Knife
    ...
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    Google screw extractor. The type I've used has a...

    Google screw extractor. The type I've used has a left hand drill and another bit to dig into the hole you drill. It works. If you don't have time to wait, I'd just drill it out. If you ding the...
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    mine's on a bungee. The top connection of the...

    mine's on a bungee. The top connection of the bungee is connected to a pulley running along a string so it can get some extra motion, but the pulley doesn't really move much. The bungee is pretty...
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    I got some stencil ink from McMaster. It did not...

    I got some stencil ink from McMaster. It did not go well. I couldn't get it to spray on with any consistency, so I gave up. Maybe I didn't get the right brand.
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    I use this one. I made a base so I can get it on...

    I use this one. I made a base so I can get it on off the table quickly.

    https://www.grainger.com/product/DAYTON-Precision-Vises-16Y480?searchBar=true&searchQuery=16Y480
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    fixed link: ...

    fixed link: http://cosmos-industrial.com/index.php?main_page=index&cPath=3
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    New Pen Marking Tools - 2016 models

    I made a promo video for my pen marking tools (complete with cheesy techno music), check it out:

    https://youtu.be/WddzboHHkGw

    The new models (2016) feature significant improvements:
    -5 writing...
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    better link: ...

    better link:

    http://www.bonnechereindustrial.com/uploads/Tech-Data-Sheet-Spray-Inks-HiRes.pdf
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    I found this which highlights some advantages...

    I found this which highlights some advantages over spray paint: http://msscllc.com/download/spray-stencil-inks/

    I believe it is dye based and not pigment based like paint, so I assume it will...
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    dumb, new guy question: Why stencil ink over...

    dumb, new guy question: Why stencil ink over more typical cans of spray paint (acrylic or whatever)? What's the advantage, faster drying? I'm just starting in on a project where I want to mask and...
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    Oh right.. it's on the wood.

    Oh right.. it's on the wood.
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    Joe, when you used that stuff, how did you hold...

    Joe, when you used that stuff, how did you hold it down when cutting? Vacuum table?
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    Cut some sand blast mask. This was Anchor 1.1mm...

    Cut some sand blast mask. This was Anchor 1.1mm sand blast mask. It cut easily, one pass, maybe 60 degrees in the shop.
    27850
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    I was sent some sandblast material. I will cut...

    I was sent some sandblast material. I will cut here in the next day or two and report on it. I think it will be easy. The gasket material I cut seems just as tough.

    I think Dave is asking about...
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    These are two very different products. Diamond...

    These are two very different products. Diamond engraving and a drag knife like mine are for very different things.

    A typical Drag Knife like mine adds capability to your machine. You can slice...
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    This one is not spring loaded, just to be clear. ...

    This one is not spring loaded, just to be clear. I'm confused. I've seen diamond bits for engraving.. I'm not sure why you'd need to drag it.
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    Cosmos is my first name :) Life story located...

    Cosmos is my first name :) Life story located here: link

    Ran some 1/16" rubber gasket material today. Easy. Tomorrow, I'd do some thick cardboard.

    https://youtu.be/AEqYhbeKc6A

    27825
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    Some other concerns, as I see it, with a spring...

    Some other concerns, as I see it, with a spring loaded design would be there's nothing preventing the blade from going deeper than planned. This could cause problems cornering or possibly just...
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    Here are some notes on programming the drag knife...

    Here are some notes on programming the drag knife and some test photos

    I was sent an image of a letter by a customer trying to get the drag knife going on small letters in thin vinyl. There had...
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    What I do is run a chamfer bit along the profile...

    What I do is run a chamfer bit along the profile first. I run it outside with a negative offset, so I'm adding a small chamfer to the finished edge. Then, when the end mill goes by, there is no...
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    Yes. I went with 3/8" to be as stiff/robust as...

    Yes. I went with 3/8" to be as stiff/robust as possible, but I think a 1/4" steel shank will do well also. If you order one, just put in the comments you want 1/4" shank. At some point, I'll set...
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    Rick, here are the specs (copied from site)...

    Rick, here are the specs (copied from site)
    Features:

    #19 heavy duty Exacto(TM) blade.
    Two double sealed bearing rated for 310 static / 750 dynamic pounds radial load
    Hardened steel 3/8" shank...
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    More thoughts on the design: For drag knives...

    More thoughts on the design:

    For drag knives that are made for use with utility or X-Acto blades (most of them), there are a few defining features:

    1. bearing for spin (some would argue the...
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