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Type: Posts; User: excitedbox

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  1. Re: Need advice on a design for a 30in capacity pitch lapping machine

    Machines work just fine. You don't have to do it by hand AT ALL. The final result needs to be ACCURATE. The randomization makes it possible to get accurate results by hand by averaging the flaws down...
  2. Re: Align two straight linear rails in one plane

    Late to the party, but a laser pointer works. Mount the laser to your rail using the straight edge or slide carriage. Pick a wall as far away as possible in line with your rail and make a dot on it....
  3. Re: Epoxy granite - has anyone tested for Young's modulus?

    But giving BLATANTLY WRONG data is not going to help them. It is called STRAIN RELIEVED not stress relieved, and your analogy makes no sense. It is compressive strength or resistance not stiffness...
  4. Re: Are any of these milling machines recommended to buy?

    That WMD is WAY overpriced and is a DRILLING machine not a MILL. That is a standard AliExpress machine available for less than half the price NEW. You should be paying no more than $1600 Shipped for...
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    Re: Counter balanced spindle head.

    You are counter weighting the Spindle not the Z Axis beam. The weights would cancel out giving you a resistance of 0. Inertia is also not a problem if you rotate a gear or pulley with the head and...
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    Counter balanced spindle head.

    I am by no means the first to think of this as a quick search will show but, after looking at the research paper of the FEA analysis in another thread it looked like the weight hanging off the Z...
  7. Re: Epoxy-Granite machine bases (was Polymer concrete frame?)

    Another terrible post by peter. That video has some of the most unreliable testing I have ever seen to the point that taking anything but what not to do from it would be a bad thing. Any air = 0...
  8. Re: Potential new concepts in the process of epoxy granite castings

    Peter please stop giving advice without checking your math first. Every thread I see you post in you give absolutely terrible advice and just wildly wrong info. If you really did impregnate CF you...
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