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Type: Posts; User: made2hack

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  1. Replies
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    Re: Using Circular saw blades on Miter Saw

    Thanks ger, I'm more interested in using some steel blades that are exclusively for the circular saw, from Evolution.

    Do you think there is much difference in a Stainless Steel blade vs Regular...
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    Using Circular saw blades on Miter Saw

    Hi all,

    I've got a technical question of sorts. I have both a circular saw and miter saw. The circular saw uses 230mm (9") blades but the miter uses 255mm (10") blades. Can I use circular saw...
  3. Epoxy Granite / Quartz Granite Mixes & Tests

    Hi all,
    I uploaded a video of my recent batch of mixes and tests (to follow).
    I invite your comments!
    Thanks,

    https://youtu.be/bhX5Sqxzpik
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    Re: Taper Misunderstanding - Some questions

    Thanks Jim and everyone.

    It gives me food for thought as I am planing to build both a lathe and drill press / light mill from scratch and was wondering how to plan to do these parts. Granted I...
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    Re: Taper Misunderstanding - Some questions

    Ok, so even a drill press will have a tapered bore inside the spindle / quill?
  6. Replies
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    Taper Misunderstanding - Some questions

    Hi All,

    I am unclear how tapers work. I attached two examples hopefully it makes sense. My understanding is that there are mill machines that follow the first example, where the spindle has an...
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    Re: Lathe Build / Spindle Bore? Yes No?

    Hi Jim,
    Good to know. Is the bore limited by the length of the head stock assembly? Or does it shoot out the end past the gears and what not?
  8. Replies
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    Lathe Build / Spindle Bore? Yes No?

    Hello all,
    I've been searching some past posts and of course also the competition at PM. However, their posts all devolve into childish rants about "Do you even turn between centers, bro?". And most...
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    Like a kid on chrismas morning!

    That's what I feel like, even though it's a few weeks late!!!

    :)

    This is my digimatic. There are many like it, but this one is mine. My digimatic is my best friend. It is my life. I must...
  10. Re: Epoxy Granite In Practice (Mineral Casting, Polymer Concrete)

    Ok, are those bolts there to anchor the steel bars themselves? And, on the flip side, are the steel bars drilled and threaded? My concern is that an M6 or M8 scren (as per DIN 912) has anywhere from...
  11. Re: Epoxy Granite In Practice (Mineral Casting, Polymer Concrete)

    [QUOTE=Goemon;2134222]I don't bother with any inserts for screws for this type of thing. If I was making something for multiple uses then I would put more effort into the mold structure but for...
  12. Re: Epoxy Granite In Practice (Mineral Casting, Polymer Concrete)

    Thanks Goemon for all the information. I will shortly cast some moulds and test out your ideas. Although, unfortunately I was planing to pour in the garage, but it is not heated, so I might just...
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    Mitutoyo Digimatic caliper depth bar

    Hello all,

    I'm looking at picking up the 150mm (6") Digimatic from Mitutoyo and it comes with two flavours of depth bar, round and flat. My current vernier caliper has a flat bar, but was...
  14. Re: CNC Lathe Conversion +Retaining Manual Control (G0752/G0602), wadeodesign

    Awesome project Wado,

    Just a question, do you feel that you are missing the tactile feedback from having a mechanical link on the saddle and cross slide wheels? How do you detect potential...
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    Re: DIY Lathe Build Ideas

    Hi datac,

    Thanks for the link. I will check it out.

    As for Arduino, it is probably going to be the quickest way to get up and running. I myself use the TI Launchpad environment and their...
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    DIY Lathe Build Ideas

    Hello all,

    I am planing a future lathe build and wanted some input. Essentially, it has to do with the saddle mechanics. I was wondering if there are lathes or machines with so called "drive by...
  17. Re: Epoxy Granite In Practice (Mineral Casting, Polymer Concrete)

    Hi Goemon, can you elaborate on the bartop resin and propanol idea? What are you pouring it into? And how do you overcome the edges that want to create a fillet to the top? How would you get a flat...
  18. Re: Epoxy Granite In Practice (Mineral Casting, Polymer Concrete)

    Hi Mark,
    I have a surface plate arriving next week. How do you recommend I mould directly on the surface plate? Should I add a layer of plastic wrap (like kitchen wrap)? Or does that create bad...
  19. Re: Epoxy Granite In Practice (Mineral Casting, Polymer Concrete)

    Hi Mark, I don't have anything as sophisticated. It is just a regular sander that I use to vibrate. Although I thought of using a DC motor to regulate the speed and have it oscillate in a more...
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    Cleaning cast iron precision level

    Hi all,

    I've recently acquired this New Old Stock precision level square that is covered I guess with the original wax from 20 - 30 years ago. How would you go about cleaning this tool?

    Should...
  21. Re: Epoxy Granite In Practice (Mineral Casting, Polymer Concrete)

    I wanted to get everyone's opinion on mixing a batch of quartz epoxy with some graphite powder. I want to rub two surfaces together such that they work as ways. Instead of cast iron ways, they would...
  22. Re: Epoxy Granite In Practice (Mineral Casting, Polymer Concrete)

    My next tests will be using 10% and 12% by weight resin. I would like to be able to do 8% by weight resin I just don't see how I can vibrate everything that well. I might test a piece to try it out....
  23. Re: Epoxy Granite In Practice (Mineral Casting, Polymer Concrete)

    Hi Mark,

    Thanks for the input. My most recent acquisition has been quartz pebbles up to a max of 7mm size which are much rounder. That large sharp aggregate is nice for looks, but it doesn't help...
  24. Re: Epoxy Granite In Practice (Mineral Casting, Polymer Concrete)

    Hi, yeah it is at the top in terms of hardness, but you can go harder (think Carbides such as Silicon or Titanium Carbide. Although, I don't know if it matters in our case, since I am not trying to...
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    Re: Which Hiwin Rail?

    Hi Kent,
    I know this is a long shot, vague question, but what rail / bearing size would you recommend for a 7x16 lathe build? The base will be epoxy granite.
    The load calculations on the Hiwin PDFs...
  26. Re: Epoxy Granite In Practice (Mineral Casting, Polymer Concrete)

    Hello Roger,

    I do actually want to make a video on the subject, more detailed. I am not so much concerned with strength as I am with damping. What I plan to build (a 7x16 lathe) will have armature...
  27. Re: Epoxy Granite In Practice (Mineral Casting, Polymer Concrete)

    Here are my tests for making various epoxy granite mixes. All of my measurements are BY WEIGHT. I tested the following formulations:

    1 - Silica Sand 80um size (US mesh 170 - 200) + Epoxy in...
  28. Granite Surface Plate specs for Bernardo (EU - AT)

    Hello all,

    Does anyone have any experience with Bernardo branded granite surface plates? This company is an Austrian importer of Chinese made tools. They have a 630mm x 400mm x 100mm (24" x 16" x...
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