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

Search:

Type: Posts; User: G00 Proto

Page 1 of 32 1 2 3 4

Search: Search took 0.02 seconds.

  1. Replies
    39
    Views
    2,267

    A couple opinions to throw out there: I...

    A couple opinions to throw out there:

    I generally don't retract over pockets when I am surfacing. On my machines, it takes longer to come up, go over and feed back down than to just feed across. ...
  2. Replies
    30
    Views
    1,664

    Oh Man, I've often wondered how they made the...

    Oh Man, I've often wondered how they made the braille signs... learnt something new today.

    I think I would do a pocket routine leaving the dots proud. Then come back in and contour the tops with...
  3. What year is the machine? The tool release...

    What year is the machine?

    The tool release piston can get bound up over time. It can also fail after riding in a truck.

    Make sure that you are trying both the tool release button on the column...
  4. I'll be the dissenting vote. Face it, after...

    I'll be the dissenting vote. Face it, after twenty years, you are a Haas shop... changing controls at this point might not be money and time well spent. I had to come to that realization. I've had...
  5. Replies
    17
    Views
    1,103

    Way ack in the day, I used to have a boss that...

    Way ack in the day, I used to have a boss that insisted on putting tapping fluid on all tapped holes... why else would they call it tapping fluid. Thousands and thousands of holes with a little...
  6. We drill about 400,000 3/4" deep holes in G10...

    We drill about 400,000 3/4" deep holes in G10 like material every year. The holes don't like to be straight, the correct diameter or on location... other than that, they are usually right.

    Drop...
  7. I agree. Just put in the pin holes and cut the...

    I agree. Just put in the pin holes and cut the OD and then check for misalignment.

    Here are somethings that jumped to my mind.

    1) Drill bit wander. I've seen this in fiberglass. I would...
  8. Replies
    27
    Views
    1,975

    I run American Rotary. No hassle with the power...

    I run American Rotary. No hassle with the power company. I haven't had any problems... did it all myself and never let out any of the magic grey smoke that run electronics.
  9. Replies
    17
    Views
    1,134

    I believe he started with shift a full compliment...

    I believe he started with shift a full compliment of 10 and clocked out with 7.5 fingers. Final inventory from right to left: 0%, 25%, 50%, 75%, 100%. This was not his first machining related...
  10. Replies
    17
    Views
    1,134

    Yes, I have some data. One of our senior...

    Yes, I have some data. One of our senior machinists used to use one on a Bridgeport to deck off large plates because he could do it in one pass. One day he went to clamp the quill lock and his hand...
  11. Replies
    28
    Views
    3,110

    Some jobs just suck... you just write a program...

    Some jobs just suck... you just write a program to surface the damn thing and then walk away. Come back in three hours and change parts... this is one of them.

    1/8" ball endmill then a 1/16" BEM....
  12. I don't see this as overly difficult. I would...

    I don't see this as overly difficult.

    I would buy a used Haas VF3 or larger and put a TR310 on it. Of course it is over budget, but not ridiculously so. I see them reasonably often for a pretty...
  13. Replies
    11
    Views
    960

    You may find more information if you search for...

    You may find more information if you search for graphite milling enclosures for EDM electrodes. That is a very common application of controlling harmful dust... I don't have any specific...
  14. Replies
    65
    Views
    5,539

    What a can of worms... roughing endmills. ...

    What a can of worms... roughing endmills.

    Corncob roughers are awesome. I move tons of metal with them. They take the lowest horsepower, lowest cutting pressure, and last forever. I use a...
  15. Replies
    51
    Views
    3,522

    I knew the answer so I just skimmed the responses...

    I knew the answer so I just skimmed the responses :) Only because I have been seeing this over the last year or so. Some chuckle head at Mastercam updated the Haas post two years ago and omitted...
  16. Response is above in body of your question.

    Response is above in body of your question.
  17. We got exponentially less corrosion with aluminum...

    We got exponentially less corrosion with aluminum sub-plates by anodizing them before we put them down. I think it gave an electrical insulation that prevented galvanic corrosion between the cast...
  18. Agreed with the above... that's a lot to bite off...

    Agreed with the above... that's a lot to bite off for your first go at CNC. I've been doing this for 25 years in high end facilities and I still end up scratching my head from time to time (I have...
  19. Replies
    21
    Views
    2,976

    I'm not real smart, but if you had a pneumatic...

    I'm not real smart, but if you had a pneumatic vise with a soft jaw instead of a 5C you wouldn't get the tit on the part.... also don't let the monkeys in the shop do a power up restart with a 12...
  20. Replies
    65
    Views
    3,496

    You need to have this reprogrammed. Do a dynamic...

    You need to have this reprogrammed. Do a dynamic toolpath with .180" depth of cut. I would start at 12% radial stepover. Your RPMs may still be to high depending on the 4140's mood that day. My...
  21. Replies
    35
    Views
    6,688

    I leave as little spacing as possible (down to...

    I leave as little spacing as possible (down to about .030"). This gives me more flat area to index on, and more wall area to clamp on.

    Hotel Key card or steel rule for near zero spacing.

    Flat...
  22. Replies
    23
    Views
    2,012

    I don't leave that much on my drilled holes......

    I don't leave that much on my drilled holes... just enough so it doesn't rub. I would try C or even D drill. If I had a tight true position tolerance, I would jump through some hoops... Circle mill...
  23. Replies
    22
    Views
    2,509

    Quick Turn Anodizing in Indiana. Generally less...

    Quick Turn Anodizing in Indiana. Generally less than 24 hours. Often times they ship out the same day as it was delivered. Same lot charge on small quantities as my local volume guy.
  24. Replies
    11
    Views
    1,530

    I've machined mountains of MDF and Baltic Birch...

    I've machined mountains of MDF and Baltic Birch plywood. It makes a mess and sticks to the old dried coolant in the machine. Use a shop vac as much as possible. Seal the bottom of the machine with...
  25. You can buy plastic snap in covers for socket...

    You can buy plastic snap in covers for socket head cap screws for about $.10 apiece. You might need to do some searching, but we've used them on products before. Seems like they came in bags of...
Results 1 to 25 of 783
Page 1 of 32 1 2 3 4