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Type: Posts; User: DavidScott

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  1. Replies
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    My idea of "diversify" is solely in sources of...

    My idea of "diversify" is solely in sources of income, which is what really matters if you lose one or two of them. I used to make only one very specialized product line but my biggest customer was...
  2. To use my current fixtures I would have to, they...

    To use my current fixtures I would have to, they are all for a 14"x20" machine. Granted to best utilize this machine I should redesign all of my fixtures to use pneumatic clamping, but a lot of my...
  3. How much work is it to pull the 4ths off the...

    How much work is it to pull the 4ths off the tables? As in 70% of my work is 2.5 axis and the rest is 4th axis. I am thinking it's a lot of work.
  4. Yeah, I'm familiar with it's size. I just checked...

    Yeah, I'm familiar with it's size. I just checked and my biggest fixture is 8"x16.5" so everything I do or have would fit. Do you have any need for the Rotovises or mist collector? Neither of which I...
  5. How many hours did you put on it? Damn, it's...

    How many hours did you put on it?

    Damn, it's the exact same footprint of the machine I am wanting to replace.
  6. A trig book to go with the calculator. My Carr...

    A trig book to go with the calculator. My Carr Lane book that I got 30 years ago is sitting under my monitor now, and it was free. Damn handy when I did mold making.
  7. Corn cobs cut with much less side and pulling...

    Corn cobs cut with much less side and pulling pressure than finish mills. Typically my problems are from pulling parts and I can run 30-60%+ faster with a corn cob than a finish mill. They are way...
  8. Still no idea how long a chip to chip tool change...

    Still no idea how long a chip to chip tool change takes. As for the tool change itself, meh, that is slow. Mine does it in .7 seconds.
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    Yes. And I need more characters...

    Yes.

    And I need more characters...
  10. The first time I saw a bigger mill, I don't...

    The first time I saw a bigger mill, I don't remember if they were verticals or horizontals, with 3,500 and 4,000 ipm rapids really spooked me too. Man those things were impressive!!! Linear motors on...
  11. What's pretty quick? Or haven't you measured it....

    What's pretty quick? Or haven't you measured it. Mine is 4.1 seconds with a prestaged tool, and it is servo driven, and 20 years old. The literature says 2.5 seconds, which would be accurate if it...
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    I would try a stub reduced shank from Harvey. Get...

    I would try a stub reduced shank from Harvey. Get 3 so you can break one finding out how fast you can go. At 15k and .125 deep slotting I bet you could feed 150 to 225 ipm"?, at least on the first...
  13. In Canada?

    In Canada?
  14. What is a Haas chip to chip tool change time? You...

    What is a Haas chip to chip tool change time? You are saying it is 4-5 seconds here, which sounds too fast to me. Say 7 tool changes in 2 minutes so that would be 14-21 seconds per part. If the Haas...
  15. I am a one person shop with 2 BT30 machines and...

    I am a one person shop with 2 BT30 machines and have ran these tapers for 25 years, I drank the koolaid early. My good machine is an 8000 lb box way type so it is a little stouter than most, but...
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    If it isn't money I wonder what you are getting...

    If it isn't money I wonder what you are getting out of staying? It seems the only thing that job is doing is getting in the way of finding your next one.
  17. How did coolant get in? Are they the ones that...

    How did coolant get in? Are they the ones that used polycarbonate for the clear window? And found out why this is the WRONG plastic for that application.
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    I thought you didn't smoke weed? I just got...

    I thought you didn't smoke weed?

    I just got back from the recycler in Portland, I ran out of room for my chips. Two little old ladys parked next to me in their little old lady Lincoln, they looked...
  19. Do BigPlus spindles have the same drawbar tension...

    Do BigPlus spindles have the same drawbar tension as standard? I thought they had a fair bit more.
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    The check valve is pretty obvious if it's bad...

    The check valve is pretty obvious if it's bad because the screw will move as you hold pressure. The screw and barrel need to be removed and measured to know what shape they are in. You will go...
  21. Kind of like the Microsoft service agreement with...

    Kind of like the Microsoft service agreement with Windows.
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    I did say the part in post #12 is advanced and...

    I did say the part in post #12 is advanced and out of his range to begin with, best to forget that part for now.

    Most of my experience with molding happened at one shop where we made our own...
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    Oh for fucks sake! He just wants to make some...

    Oh for fucks sake! He just wants to make some simple molds and get plastic parts out of them. I say plastic parts because that is easy, getting properly packed, low stress parts is a lot more...
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    Polyethylene would be my pick. It's about as...

    Polyethylene would be my pick. It's about as inert as a plastic can get. It is also very resistant to acids so if they swallow it and it passes through they will be fine. No fillers or colorants for...
  25. Don't let a wet wheel stop, spin it till it's...

    Don't let a wet wheel stop, spin it till it's dry. You DO NOT want to turn on a wet wheel that has been sitting idle. I have heard horror stories about wheels blowing up, both surface grinder and...
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