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 0.03 seconds.

  1. Replies
    6
    Views
    437

    Many ways to skin this cat, a chiller is the...

    Many ways to skin this cat, a chiller is the "professional", and expensive, way to do it. Keep in mind that hot coolant is also heating up your castings, causing thermal movement.
  2. I have a 2001 Mycenter 1 which is box way so not...

    I have a 2001 Mycenter 1 which is box way so not quite the same, but does have 2000 ipm rapids. I would bet money the Zero is still far beefier than a Robo, even though i think it is linear way. Do...
  3. Not that I recommend scotchbrite on tool holders...

    Not that I recommend scotchbrite on tool holders or spindle tapers, by hand will work fine to remove those marks. I would try something less abrasive first, like metal polish and a clean rag.
  4. The range I have found over the years is 8-38...

    The range I have found over the years is 8-38 ft-lbs, with Command saying 8. To those who don't use thread sealer/locker you can end up with unfiltered coolant above your tool holder, which can get...
  5. What marks on the tool holder make you say that?...

    What marks on the tool holder make you say that? I know what the Op said but what I see is a tool holder that is getting pushed hard.
  6. Replies
    151
    Views
    13,459

    The pull studs are only an issue when the tools...

    The pull studs are only an issue when the tools force overcomes the drawbar tension. How would HSK toolholders help here? And it has to be more than dual contact since Brother already offers that,...
  7. As we have already said, WTF are you sticking the...

    As we have already said, WTF are you sticking the endmills so far out of the holders for? Also as has already been said, that ain't fretting, those are just marks. The last photo is a bit more...
  8. Choke up on everything as much as possible and...

    Choke up on everything as much as possible and are you seeing any fretting in the tool bore? I think of fretting as the surface turning red with rust, what you have isn't quite fretting as I don't...
  9. Did you do a finish pass on the pocket floors? I...

    Did you do a finish pass on the pocket floors? I typically leave .003" for the finish pass.
  10. I was only thinking of the small square keys for...

    I was only thinking of the small square keys for a live tool lathe, the bigger Shift/Enter and especially the space bar keys would be a problem. If you only get one machine then maybe a mill with a...
  11. If all you want to do is computer keys then you...

    If all you want to do is computer keys then you want a bar fed lathe/mill. Then it would automatically run 24/7 with little labor.
  12. I machined stone, ceramic, and quartz on a VMC...

    I machined stone, ceramic, and quartz on a VMC for 17 years and did zero harm to it because it was a good design for that and properly guarded. You want different guarding for stone vs metal vs wood,...
  13. Yeah, I was thinking of the wood too. You don't...

    Yeah, I was thinking of the wood too. You don't want it in your coolant but I would figure out a way to deal with the chips before buying a 2nd machine.
  14. Sounds like you aren't the one standing in front...

    Sounds like you aren't the one standing in front of the machine. For a one person shop the faster the machine the better, until it is faster than you can load the next pallet. After that, you need a...
  15. Replies
    151
    Views
    13,459

    My 30 taper Enshu has 6. Not a lot of space...

    My 30 taper Enshu has 6. Not a lot of space between them but then I have never had a problem in 17 years. I have just never seen less than 6, yet.
  16. Replies
    151
    Views
    13,459

    That's new to me, I've never seen so few balls...

    That's new to me, I've never seen so few balls for drawbar retention. This is a Brother?
  17. Replies
    151
    Views
    13,459

    How many balls are there? I only see one divot,...

    How many balls are there? I only see one divot, and I would expect to see at least 4 or 5.
  18. Replies
    4
    Views
    355

    Maritool has them for $589. No idea about who...

    Maritool has them for $589.

    No idea about who rents them.
  19. Replies
    151
    Views
    13,459

    Perhaps the bad tool holders should just...

    Perhaps the bad tool holders should just disappear into the trash? But then again that might not help, depending on the collets, care in swapping tools in collets, setups, etc. Any idea how many...
  20. Replies
    2
    Views
    281

    I know the cost of those grippers is high, but I...

    I know the cost of those grippers is high, but I think it's worth it. Going off my 2001 30 taper spindle I would say you most likely need to pull the drawbar out of the spindle to replace the...
  21. Replies
    151
    Views
    13,459

    That's a nice photo showing the difference...

    That's a nice photo showing the difference between grippers/fingers and caged balls on pull stud design. Gripper on the left, caged balls on the right.
  22. Replies
    151
    Views
    13,459

    It's not like they are breaking from too much...

    It's not like they are breaking from too much drawbar tension so as long as you don't machine too aggressively so the tool holder pulls out of the spindle you should be good.

    My go-to for pull...
  23. Replies
    151
    Views
    13,459

    Those divots in the Maritool pull stud are...

    Those divots in the Maritool pull stud are absolutely abnormal. I have pullstuds that are up to 17 years old in a 30 taper mill with around 500lbs drawbar tension and the divots are no deeper than...
  24. Replies
    151
    Views
    13,459

    I certainly won't say the Maritool knobs are spot...

    I certainly won't say the Maritool knobs are spot on BUT from what I have gathered the cause of the pull studs failing is when during a cut the drawbar tension is overcome and the tool holder pulls...
  25. Replies
    151
    Views
    13,459

    Well that's telling the 1% of the story that...

    Well that's telling the 1% of the story that doesn't make you look bad.
Results 1 to 25 of 1500
Page 1 of 60 1 2 3 4