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  1. W

    Looking for ideas to lubricate 660 bronze bushing.

    I have an LNS bar chamfering machine. The cutter head spins. It is supported on the outside of the head by a large bronze bushing. That bushing goes inside a housing (painted yellow in the picture below) that is fixed to the frame of the machine. The bushing is severely worn out, and I need to...
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    identifying A axis on Nakamura WT-150

    I am getting an intermittent alarm on my Nakamura WT-150. 366 A Axis: Pulse Miss (Int) Does anyone know what the A axis is on this machine? Or how I can find out? I called Methods, and the guy I talked to was stumped. The machine has X, Y, Z, and C on the top turret; X, Z, B (sub Z), and C on...
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    strange random alarm on Brother TC-31A

    I have a Brother TC-31A with A00 control that is randomly throwing alarm 6311: H Pre Coolant Err 1. Description says "high pressure or filter pump overloaded". The problem is that this machine doesn't have high pressure or through spindle coolant. It has two pumps: flood coolant and washdown...
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    Power surge protection for machine shops

    Today we lost a phase of our 3-phase power. We have 800 amps of 480 V. The power company had it fixed in a couple hours. They said it was a squirrel. While this sucked, I don't see much we can do about it. The bigger problem is that it somehow took out our (only) air compressor. I realize I...
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    Trouble setting zero positions on Fanuc control using parameter 1815

    I screwed up and let the batteries go down for the servos on one of my machines. The machine is a Mori Seiki DL150Y with MSC-518 control. This is the same as a Fanuc 18T, I believe. Home position has been lost on the right side X, Z, A, and T. A is the live tool driver, and T is the turret...
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    reset Brother servo battery alarms

    We have two Brothers in the shop. For whatever reason, both had battery alarms this morning at power up. The batteries were replaced, but we can't get the battery alarms to clear. Is there a special procedure to clear the alarms? I have the procedure to reset the home position but can't seem to...
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    Yaskawa spindle drive power issue

    I've got a Yaskawa spindle drive that I'm having intermittent power issues with. Sorry about the rotated picture. It's a CIMR-VMW2015. It will randomly lose power, and the display will go blank. It might be off for just a second or a few minutes. I've been battling this for a while. We...
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    Replacing lathe spindle bearings

    The spindle bearings on one of my lathes need replacing. We've done this on other lathes in-house before. I didn't want to mess with it this time, though, so I got a quote from a spindle rebuilder. I was surprised by the (high) price. It's an old Takisawa TC-1. The max bar size is only about 1"...
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    TCMT vs TPMT inserts for boring

    I want to buy some new boring bars as some of ours are getting a bit beat up. Can anyone tell me any advantages/disadvantages to using 7 degree vs 11 degree positive inserts? It seems that most manufacturers offer both types. So what reasons are there to pick one over the other? I titled the...
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    Broken live center in lathe crash

    We had a crash today that broke the shank of a MT4 live center. I was hoping to get some help figuring out what happened. It appears that the live center loosened up and was hanging out of the tailstock when the drill came in and smacked it. I just can't figure out how the live center could have...
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    bar straightening recommendations

    Does anyone have any experience getting bars straightened? I have a large bundle of 20' long 7/16" OD stainless tubing that is not very straight. The long story is that we normally run this job out of welded tubing. This time around, welded wasn't available, but the supplier agreed to sell us...
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    Nakamura lathe spindle motor temperature

    I recently found on my Nakamura WT-150 with Fanuc 18i-TB control that diagnostic #400 shows the temps of the four spindle motors (2 turning and 2 milling). I've been monitoring them, and the main turning motor seems to be getting really hot. The last two days of production, I've seen it get into...
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    How to check two half-bores for colinearity.

    I’m looking for some ideas on how to check a part. It looks VERY similar to the part in this link. Yukon Gear & Axle YY D44-1310-26U Pinion Yoke | Walmart Canada I need to check the relation of the two half-bores. Their centerlines need to be colinear within a specified tolerance. How would...
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    Fanuc 15M helical interpolation parameter

    We have two Toyoda FA450 HMCs. On one we can perform thread milling with helical interpolation, but on the other one we get an alarm when attempting it. The machines are very close in serial #s, so I would expect them to have the same capabilities. Is there a parameter that needs to be changed...
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    Slightly OT: Interesting book review by Jay Leno

    Leno: Precision machining built the world as we know it | Hagerty Media "Precision machining built the world as we know it"
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    Help needed with Mori lathe with gantry loader

    I have a late '90s Mori DL150Y that we picked up used recently. I'm trying to get the gantry loader working but am stuck. I'm posting here on the off chance that someone has experience with these Moris and loaders. I've gotten it to the point where the loader is running its program and moves...
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    SRAM card contents

    I have a late 90s Mori lathe that I am trying to troubleshoot. It would be very helpful if I had a paper copy of the ladder, but I don't. The ladder in the control doesn't give me enough information to find what I'm looking for. I found an SRAM card with the parameter lists in the electrical...
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    ER collet nuts

    I have some ER20 lathe live tool holders that are missing the collet nuts. I tried one from Maritool, and the thread was right, but the nut was about 1/8" too long. It bottomed out before tightening the collet. This is on a Mori Seiki, and I believe the holders are made by Alps Tool. I can...
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    Fanuc OT Not Ready

    I have an early '90s Star CNC lathe with a Fanuc OTT-C control. I can't get it out of the "Not Ready" state. I have had the machine for over 15 years, so I am familiar with it, but this has me stumped. At first I made the mistake of thinking this was the same as E-stop. It is not. I checked...
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    Insert recommendation for turning ductile iron

    Hi all. It's been a while since I've done any turning on ductile. I'm setting a job up with some steel cutting carbide inserts, and it's wearing them out crazy fast. I'm taking light, very interrupted cuts at about 350 sfm. What have you had success with in turning interrupted cuts in ductile...
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