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Type: Posts; User: coryatjohn

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    >> I find it's the spoil-board that causes the...

    >> I find it's the spoil-board that causes the changes in height, as you pull through the board you introduce whatever humidity is in the air and that causes the fluctuations in thickness.

    That...
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    Have you checked 80/20's eBay store? They offer...

    Have you checked 80/20's eBay store? They offer odd sizes for about half price. The odd sizes can be over 8'. I've bought maybe a dozen of them over the years at that length. They're probably...
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    Question: Is your vacuum pump under your table?...

    Question: Is your vacuum pump under your table? If so, that could explain the changes you're seeing. Vacuum pumps throw off a lot of heat and if that heat is hitting the underside of your table,...
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    I did a job that required cutting thousands of...

    I did a job that required cutting thousands of plastic parts (acrylic) to very close tolerances. One thing I noticed is that the wear on the end mill was the biggest contributor of error in my...
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    The cheapest and most stable material would be...

    The cheapest and most stable material would be plate steel. Steel is literally an order of magnitude cheaper than aluminum. It's also stronger, stiffer, and has a lower coefficient of expansion. The...
  6. Thread: New Spindle

    by coryatjohn
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    >> After every cutting project I give my machine...

    >> After every cutting project I give my machine a good cleaning and tune up.
    The number one enemy of moving parts is contamination.
    The number one enemy of electronic parts is heat.

    Keep your...
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    Yes, the measurement from the center to the table...

    Yes, the measurement from the center to the table TIMES TWO. I apologize for my mistake.
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    I believe it's spec'd as a measurement between...

    I believe it's spec'd as a measurement between the center and the table. If you want more diameter, you'll have to jack up the indexer and tailstock as you've indicated.

    One thing that makes tiny...
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    Looks great! Hope it works.

    Looks great! Hope it works.
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    I gave up on the automatic zeroing years ago...

    I gave up on the automatic zeroing years ago after the second time I forgot to remove the clamp from the spindle. I switched to a much more intuitive method that uses a dial indicator.

    34106
    ...
  11. Wow! That's the way to move 'em on out. Free...

    Wow! That's the way to move 'em on out.

    Free shipping too.
  12. Thread: Spoil Board

    by coryatjohn
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    I can think of several negatives to using PVC as...

    I can think of several negatives to using PVC as a spoil board. The major one are the chips from PVC getting tossed around on every job. I take special precautions when cutting plastics to keep that...
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    That sandpaper is my absolute favorite for hand...

    That sandpaper is my absolute favorite for hand sanding. I cut a piece, fold it over and with a snap blade razor knife, trim the edges square. The thickness of the two sheets is just right to form a...
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    Year built? SB Software version?

    Year built? SB Software version?
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    After I put together my PRS Alpha 60x90x12, I...

    After I put together my PRS Alpha 60x90x12, I decided to move it across the room. A friend and I just dragged it carefully. It didn't need leveling or any changes since the floor was reasonably flat....
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    Looks nice! You can always sand it and add a few...

    Looks nice! You can always sand it and add a few layers of glass at a later time if you feel the need.
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    >> For applying the epoxy I like to use a bondo...

    >> For applying the epoxy I like to use a bondo spreader.

    Another useful tool... How would life continue without bondo spreaders? I use them primary for glue ups and thickened epoxy.
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    The amount of curvature a particular cloth can...

    The amount of curvature a particular cloth can handle depends on the weave. The typical plain weave, which is like regular cloth, can handle slight curvature and if it's a lightweight cloth, a decent...
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    I have absolutely loved working with the System...

    I have absolutely loved working with the System Three products. Their epoxy sets slowly and once it's hard to the touch, can be sanded. Waiting more than 36 hours to sand will make the job a lot more...
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    Oops, sorry Bill, didn't notice you already had...

    Oops, sorry Bill, didn't notice you already had joined the conversation.
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    >> My problem happened all within ten minutes. ...

    >> My problem happened all within ten minutes.

    I suspect you've had a hardware failure in the control box. You should probably contact Shopbot for debugging.
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    System Three epoxy. The best epoxy for such a...

    System Three epoxy. The best epoxy for such a task. Their products are a bit more expensive but they have such a higher quality compared to others that it's worth the extra. To do a really good job,...
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    Usual weather in Memphis. Hot with a chance of...

    Usual weather in Memphis. Hot with a chance of thunderstorms. Same every year. Typically, when the calendar clicks over to September, we start getting some "nice" days with highs in the mid-80's and...
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    I think my PRS Alpha was among the first to get...

    I think my PRS Alpha was among the first to get the echain as included equipment. When I ordered my machine back in 2012, the echain wasn't standard. I didn't know anything about it at the time but...
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    I love making boxes. It's cathartic....

    I love making boxes. It's cathartic. Non-woodworkers would laugh at the amount of effort and skill it takes to make one.
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