Search Results - Practical Machinist - Largest Manufacturing Technology Forum on the Web
Close
Login to Your Account

Search:

Type: Posts; User: DavidScott

Page 1 of 60 1 2 3 4

Search: Search took 0.02 seconds.

  1. If memory serves this machine has very low...

    If memory serves this machine has very low drawbar tension, like around 350lbs, so be very careful when milling. Corncob roughers will try pulling the tool down far less than any other endmill so...
  2. Replies
    142
    Views
    5,269

    The main argument we have is at the end of the...

    The main argument we have is at the end of the day it is hard to beat these type machines for throughput if you are doing any kind of production, and they are very energy and space efficient.
  3. Replies
    142
    Views
    5,269

    I have heard of them sending it back into the...

    I have heard of them sending it back into the grid but never storing it for the upcoming acceleration. I think this is more like what F1 does, short term, high burst storage. That is interesting.
  4. Replies
    142
    Views
    5,269

    Stores the energy? Please do tell more.

    Stores the energy? Please do tell more.
  5. Replies
    8
    Views
    375

    I have seen tools that are radiused top and...

    I have seen tools that are radiused top and bottom that would work, but can't remember where. Sorry, but it is out there.
  6. Replies
    30
    Views
    1,392

    The last time I looked Lyndex had the shortest...

    The last time I looked Lyndex had the shortest gage length face mill holder, but that has been a few years ago. At least try the stubby sidelocks, Maritool makes them 5/8" and smaller. The more I...
  7. I would try stoning it out first, masking the...

    I would try stoning it out first, masking the good section with tape so I didn't hit it with the stone getting most of it out. I have done the home shop regrind myself with a high-end die grinder...
  8. Replies
    19
    Views
    1,238

    The scroll compressor looks interesting. Oil and...

    The scroll compressor looks interesting. Oil and filter change every 3 years isn't bad and it cycles like a piston pump for variable air loads. I have been using scroll compressors for over 20...
  9. Replies
    45
    Views
    3,429

    What shape are the way covers and wipers in? ...

    What shape are the way covers and wipers in? They are not designed to protect from grinding chips. The abrasives will wear out the rubber wipers in hours so don't expect them to do their jobs. You...
  10. I don't know, never seen better for sale.

    I don't know, never seen better for sale.
  11. Yes, Bal-tec (https://www.precisionballs.com/). ...

    Yes, Bal-tec. My balls were 1/4" so the 2mm balls would have even smaller size differences to deal with.
  12. If Haas no longer sells them then ask them who...

    If Haas no longer sells them then ask them who they got them from, they should tell you if they are not going to sell one to you. Start with Haas then go from there.

    And get a part # from Haas if...
  13. Been there done that. .00005" is a big jump in...

    Been there done that. .00005" is a big jump in ball diameter if the balls do the preload. New ball screws use balls that are round to within 5 millionths or so, balls you buy off the internet, or...
  14. The negative rake of a proper blade will leave a...

    The negative rake of a proper blade will leave a better finish and cut smoother but tends to be more prone to welding.
  15. I use a 10" Hitachi sliding compound saw with a...

    I use a 10" Hitachi sliding compound saw with a $20 Concord blade for aluminum, better than an 80$ Freud and cheaper. I do help it cool with the shop ventilation system when I am loading new bars...
  16. Start with photos of you bluing a taper, use one...

    Start with photos of you bluing a taper, use one of Franks. It sounds pretty simple. You don't need a test bar. The runout is your tool problem, and the high spot isn't good for your tool holders.
  17. How do you clean it when changing tools?

    How do you clean it when changing tools?
  18. I have never had a taper ground in place but I...

    I have never had a taper ground in place but I have pulled spindles to have the taper ground before. I just had a spindle in my 2001 mill rebuilt right so don't think it isn't a good option if the...
  19. I think it's more just lipstick on a pig. I like...

    I think it's more just lipstick on a pig. I like the idea and have known of it for a while but I think the best money invested would be making the switch to SK type collets and holders. The taper...
  20. Balls wear the most, then nut, then screw. ...

    Balls wear the most, then nut, then screw. Replacing the balls isn't hard, just tedious. It takes time to figure out exactly what ball to use, but does depend on the type of nut and how it is...
  21. Replies
    89
    Views
    5,856

    My problem is my BT30 tools go in an 8000 lb box...

    My problem is my BT30 tools go in an 8000 lb box way drill/tap center which skews my expectations on how hard you can safely push a BT30 tool. All this talk about the limitations of BT30 isn't...
  22. Replies
    13
    Views
    825

    The diamond saws for stone would cut this like...

    The diamond saws for stone would cut this like warm butter, especially if you got a blade for marble. Depending on how much you cut you could find a thin kerf blade and make some custom stabilizers...
  23. Replies
    89
    Views
    5,856

    I have said this before, maybe, just maybe, the...

    I have said this before, maybe, just maybe, the BBT drawbar could be an option for standard spindles for job shops/garage shops. Obviously everything about the machine can handle the extra drawbar...
  24. Replies
    89
    Views
    5,856

    If you don't break a tool now and then how do you...

    If you don't break a tool now and then how do you know how fast you should go? My run sizes are 500-3000 and are nearly all repeat work so I continually optimize.
  25. Replies
    89
    Views
    5,856

    Exactly what the previous two posts say, these...

    Exactly what the previous two posts say, these are not job shop machines. They are what they are and don't use them like something else.

    I need to get to work, an hour left.

    Ps, the pull...
Results 1 to 25 of 1500
Page 1 of 60 1 2 3 4