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Renishaw MH20-i not lighting LED
The Renishaw MH20i probe in my Mitutoyo Crysta CMM is not lighting the red LED when turned on. The probe isn't working. The power did go out a few days ago and the computer shut down. Any thoughts? Probe? cable? PC card? -
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Industrial hydraulic cylinder options
Years ago Milwaukee Cylinder made hydraulic cylinders that were pretty good. Looks like they are still in business. -
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carbide insert getting build up turning aluminum
It was heat treated to a normal strength and hardness (likeT6), correct? -
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My machine will pump coolant then it will stop and run a cycle with no coolant. Pleas Help
Maybe impeller in pump sticks every so often.- BobM3
- Post #32
- Forum: CNC Machining
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Tool holders fall out of ATC arm coming from pots
Did it used to work? Did the swing arm get hit hard? If so do what Jacob suggested. On my machine the motor (not a servo motor) has a shaft extension with a hex male profile that allows you to attach a socket and drive with a wrench.- BobM3
- Post #9
- Forum: CNC Machining
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Tool holders fall out of ATC arm coming from pots
On my Hardinge (Bridgeport) the tool would get thrown when the swing arm rotated. There's a cam on the swing arm that is supposed to hold the tool in during swinging. The rod pushing the cam was sticking and I cleaned it off and all was fine.- BobM3
- Post #4
- Forum: CNC Machining
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Milled boss tolerance vs milled interpolated hole tolerance deviation
G41 instead of G42 (or vise versa) - comp switches sides.- BobM3
- Post #8
- Forum: CNC Machining
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Help! How much axial force from the table can a Bridgeport spindle head take?
I think my Bridgeport is rated for a 1/2" drill in steel. You could back-track and look up the force from that.- BobM3
- Post #3
- Forum: Bridgeport / Hardinge and USA Light Iron
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Curious about fit on tapers.
So I'm about to machine a taper on the lathe jaws to hold a casting. Obviously the taper can't match the casting exactly. I'm thinking you shoot to get contact at the widest point (the entrance to the taper)? Seems like that would have the most moment resistance. I see Cat40s are at an...- BobM3
- Thread
- Replies: 6
- Forum: CNC Machining
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Fanuc Oi breaking taps
Don't you need an M29 to sync the spindle and vertical?- BobM3
- Post #14
- Forum: CNC Machining
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Improve Longevity of Worm Gears?
You can blue up the teeth to check contact. Phosphor Bronze or Aluminum Bronze with a hardened steel worm works. Cast iron gear and soft steel for worm also work. Mobil 634 Synthetic works well for worm gears. -
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Draw tube removal
Tapping with a hammer on the face of the flange might loosen it.- BobM3
- Post #10
- Forum: CNC Machining
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.093 Flexible hone?
We attach a worm to a .343 Dia. motor shaft. The OD on the hub of the worm is .50". They are held together with a .093 Dia. shear pin. Holes on hub are a bit small on the hardened worm (56 Rc) so the pin is tough to get in. We had to switch to a new vendor on the worms and I'm guessing the... -
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OT- bait for mouse traps?
I use peanut butter. One location seemed to have some crafty mice. The bait would be gone but the latch didn't release. Then I noticed that shortly after loading the peanut butter ants would come out and get it. -
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Understanding Fanuc 21-T axis limit numbers in parameters
Thanks on the metric info. The position I put it in was turret 3" from spindle nose. I suspect that number is not the correct one but it was in the procedure I found.- BobM3
- Post #5
- Forum: CNC Machining
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Understanding Fanuc 21-T axis limit numbers in parameters
I had to replace my Axis Drive Unit for my Hardinge Cobra 42. I found a thread that gave a detailed explanation of the homing procedure. Now I'm trying to set the limits for X and Z axis. The original numbers are: Parameter 1320 x 333553 z 400609 1321...- BobM3
- Thread
- Replies: 5
- Forum: CNC Machining
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Cobra 42 homing issue - turn off stoke limits?
I replaced the servo unit now I have to home the x and z axes. I found a previous thread that described how to do it. Problem is when stroking z out to the specified Hardinge value of 11.000" the motion stops about 5" short (at around 6"). It's acting like a stroke limit - can't go any...- BobM3
- Thread
- Replies: 1
- Forum: Bridgeport / Hardinge and USA Light Iron
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Powder coating effect on screw strength?
250 F? Our powder coat has to be cured for 10 minutes at 400 F. I'd like to find the 250 F stuff because we're doing aluminum castings (356-T6) and I worry about the loss in strength.