584,814 active members*
5,347 visitors online*
Register for free
Login

Search:

Type: Posts; User: Mike Everman

Page 1 of 12 1 2 3 4

Search: Search took 0.01 seconds.

  1. Re: Best belt drive ever! (If I do say so myself)

    Funny, I do not get alerts for this thread or I would have chimed in!
    So, with regard to molding the base teeth, I too have done this, and the first discovery was that clearance is needed to allow...
  2. In answer to your previous question, yes the belt...

    In answer to your previous question, yes the belt needs to be captured with side walls, flanges on the pulley or idlers do not work. As far as pressure between the idlers on the stack of two belts,...
  3. Thank you for putting the link, Ger. Scott,...

    Thank you for putting the link, Ger.
    Scott, generally no, we do not sell to the public. Our main focus is OEM sales, but we do sell one-offs rather regularly to OEM customers.

    The reason I am...
  4. Replies
    135
    Views
    53,888

    Sticky: I concur! For DIY, for the double row bearing...

    I concur! For DIY, for the double row bearing mentioned, use 5202 with seals. $13 ish on VXB.com. Same diameters as 7202, but a bit shorter, will need washers to get the length right if you run out...
  5. Re: Best belt drive ever! (If I do say so myself)

    Yesss, but there is lost motion. It is true there is no "zero stiffness deadband" with belts like you'd see with a rack and pinion (installed with the proper clearance). What there is, is lost...
  6. Re: Best belt drive ever! (If I do say so myself)

    A simple "omega" belt varies in stiffness from end to end, with the least stiffness being the stretch of almost the full length in belting. In tuning high performance servo loops, you must tune to...
  7. Re: Best belt drive ever! (If I do say so myself)

    Hi Joerg,
    The reason for steel reinforcement is the back-bend that is going on. We can get up to 50 million cycles with steel, and Kevlar would not make it through the weekend. I do not know about...
  8. Replies
    3
    Views
    789

    Re: Deep groove bearing axial preloading

    Hi Evan,
    Axial preload of radial bearings is an interesting topic. One overriding concept you won't find readily is what axial load capacity do radial bearings have? Interestingly, it is the same...
  9. Re: Best belt drive ever! (If I do say so myself)

    I did 11 days ago.
  10. Re: Best belt drive ever! (If I do say so myself)

    Apologies, my notices were going to spamalot.
    So far, many gantries down the road, there has not been an issue with small differences, leg to leg. The BrecoFlex belting is extremely good wrt pitch...
  11. Re: Avoid Teknic drives, they are cheap for a reason....

    Why do you need true closed loop? Are you running the amps in torque mode and using the control to close the loop? All they do in step systems is report where they are sending the motor, rather...
  12. Re: Disassembling a Hiwin HGH15CA linear rail carriage - missing ball bearings

    The short answer is yes, go ahead with 1/8 balls. You may get a little more preload. Keep everything clean. If they've sat out, I would irrigate profusely with kerosene and always keep them...
  13. Re: Avoid Teknic drives, they are cheap for a reason....

    My goodness, where does the time go???

    In answer to the question, 500+ of various things, though we were an OEM with far less. It's not about how much all the time, it's about credibility that...
  14. Replies
    4
    Views
    203

    Re: In need of Linear stages

    Hi Vivek, are you the Vivek that I met at Zygo some years back?
    I am wondering why four actuators for a bi-directional test? What is the resolution you require?
    Mike
  15. Replies
    1
    Views
    970

    Crossing Splines XY

    Hey, guys! Here's my latest project. Anyone not mesmerized by a 3d printer printing cannot be my friend anymore. Just sayin'. OK, CNC anything, really.

    It's a 3d printer designed by myself and...
  16. Hi King, or is it Kong? I do have photos I can...

    Hi King, or is it Kong? I do have photos I can post soon, we've now got a 5:1 belt reduction for SBLH and have delivered a few pre-production units. We are rolling out the ServoBelt Heavy...
  17. It is 3M VHB double back tape.

    It is 3M VHB double back tape.
  18. Replies
    1,026
    Views
    111,340

    Very nice, Bill. You make that animation? I'm a...

    Very nice, Bill. You make that animation? I'm a big fan of all things epicyclic.
  19. True to your handle, that is just plain sweet! ...

    True to your handle, that is just plain sweet! Have you run it repeatedly yet? I am concerned that the belt is going to track out of the idlers. I've found that flanges on pinion and/or on the...
  20. I would call that roll swaging the tube into a...

    I would call that roll swaging the tube into a groove in the aluminum end piece. If you are looking for a DIY method of doing this, you can simply use a dull pipe cutter. The more dull the better,...
  21. Great work! Let's see the video!

    Great work! Let's see the video!
  22. Replies
    3
    Views
    677

    First, I would measure the peak to peak radial...

    First, I would measure the peak to peak radial distance of the aberration. Then in order to help, we would need some info:
    Pin roller diameter
    If the roller diameter * pi is equivalent to...
  23. Wow, I've missed a lot. I'm not getting alerted...

    Wow, I've missed a lot. I'm not getting alerted to new posts, but should be!

    Zebethyal, nice work, man!

    As to flanges on idlers or pinion: nothing works better than the belt in a full length...
  24. Yes, VHB is what we use, and most definitely go...

    Yes, VHB is what we use, and most definitely go slow when laying it down, preferably with a block to smooth it. Bubbles can be dealt with by slicing across them with a razor blade. Clean the belt...
  25. So, yes, I would increase the number of teeth to...

    So, yes, I would increase the number of teeth to a minimum of 15, and then your motor can put 200 lb into the belt. That's not so bad. Though we like to limit it to 100 on 32mm wide belt in a...
  26. Replies
    13
    Views
    1,050

    They would call this a NEMA 23 3-stack, 3-phase...

    They would call this a NEMA 23 3-stack, 3-phase brushless motor with hall effect sensors. The motor data is all on the sheet I posted.
  27. Well, that .002-.005 is just ideal for tooth...

    Well, that .002-.005 is just ideal for tooth engagement. As the gap gets bigger, it's easier to pull the belt out of engagement down below, then ZZZZZrpp, and you have to reset everything. The...
  28. Replies
    13
    Views
    1,050

    Here's the motor detail. The wire colors are on...

    Here's the motor detail. The wire colors are on the emoteq site for the "quantum" motors, though i think they are the same across the board.

    The encoder is Heidenhain LIDA400 15-pin d-sub pinouts...
  29. Replies
    13
    Views
    1,050

    Oh yeah, those are great stages, if I do say so! ...

    Oh yeah, those are great stages, if I do say so! I'm using one on my polar mini cnc (see that at mikeeverman.com if you haven't yet). Yours have heidenhain 1um resolution and the motor is really...
  30. Yeah, nice work Homer. Someone else mentioned...

    Yeah, nice work Homer. Someone else mentioned the thrust happening with your helical gear. That's the first place I would look if you have trouble with precision. Having a spring in the drivetrain...
Results 1 to 30 of 333
Page 1 of 12 1 2 3 4