We have been using Rustlick around the shop for some time now and it definitely gets the job done. I come home everyday smelling like it!
Water soluble machine coolant has it's obvious benefits, but sometimes I get the feeling that it's a bit harsh on precision tools when is sits and collects...
I have to mill a 1/8" thick channel in some long 1018 stock. The channel has to be 1 5/8" deep. I am running this on a CNC vertical mill and I have a couple concerns.
First, how do you prefer to balance speed, feed, and cut depth? I know there is a sweet spot depending on what the tool and...
We are attempting to mill a "T" profile on 24" long copper bars that are roughly 3/8" thick and 1-1/4" wide. You can see our set up in the attached images.
I knew milling copper was a pain from what other machinists have told me. I followed all the suggestions; use a 3-flute cutter, use high...
We have a 16C to 5C collet adapter that we are trying to use in our CNC lathe. Despite repeated attempts to adjust the moving part we can not get the 5C to close in the adapter. I suspect that the hydraulic drawbar, that moves only about 1/4 inch, is not retracting enough for this adapter to be...
I am new to surface grinding and have been experimenting with our Proth surface grinder on a test piece of steel.
I have the feed rate pretty slow and the cut depth is very shallow (although the steel stock is not perfectly flat with high and low spots of a few thou). When I go to make a pass...
One of our more frequently used machines, a Bridgeport Series I, has been making some odd knocking sound from the head when going above ~1200 RPM. Has anyone heard something like this? How did you go about fixing it? We lube this machine per the maintenance schedule.
VIDEO:
Thanks,
Justin
I posted this to the CNCzone forum but I thought I should bring it up here since it seems like there's more activity here on PM.
We are searching for a solution to allow our vintage Fanuc 3M-A equipped milling machine to run more complex programs. From the factory the Fanuc 3 does not allow...
I am trying to edit our F360 post processor to output G-code files for our Fanuc 3M equipped milling machine. Near the beginning of each program I would like the machine to perform a reference point return followed by setting my work shift offset. We did this on a recent lathe project and the...
I am trying perform a back cut with a lefthanded roughing tool. The roughing toolpath looks fine but when I try to make the finishing pass on the rest of the remaining stock, the tool keeps trying to go all the way to the end of the part before removing the material I want it to. I have made my...
We are trying to cut a long part in our CNC turning center. I tried to start the operation with a real light facing. The bar jumped out of the 3 jaw Chuck we are using and won’t turn straight now. Maybe an issue with the soft Chuck jaws? I hate dealing with these automatic hydraulic chucks...
Anyone who has worked with these older Nakamura turning centers knows of the odd trait that is the X axis direction. As you move closer to the spindle X is positive. I tried to change this by following the directions here...
I am trying to run a G71 for practice as we gear up to turn some more complicated profiles on our CNC lathe with a Fanuc 0T.
I am just trying to turn a ball end on a piece of HDPE. When I run G71 in single block, it gets stuck on the second line and throws a 065 alarm. Book says this means that...
I am trying to learn how to use work offsets to free me from having to program everything in absolute. These older Fanuc controls do not use G54 work offsets. When I was using our CNC mill with a 3M control, I got around this by using legacy code G92, which in layman's terms sets the current...
We have succeeded at using G76 on our turning center to complete a single point threading cycle. The only issue is that we have been using V-point threading inserts, and we have to increase the cut depth in order to get a fitting thread profile. I believe that when we do this, it creates a poor...
We are trying to mount one of our larger Flynn boring heads. Our idea is to create an adapter, one side threaded the other a straight shank, that allows us to put the boring head in an arbor with a 1.5" diameter hole. The threads will be 3" - 4TPI.
We put a bar that we know to be true in the...
We found a few of these tools and do not know exactly what they are. They look like they are made to cut a conical counter bore for a screw head.
-Justin
This is one of the first jobs that we are getting in our new shop. All the customer wants us to do is drill out the stuck bolts and re tap the holes? I am guessing on that second part as it appears the holes are threaded?
How would you go about doing this? I don't want to damage the threads...
I have been going through a couple of the larger and older milling machines in our shop to clean them and prepare them for operation. The one I am working on today is our Cincinnati No. 2 VM. It, like other mills of similar construction, has a large moving head mechanism that is made to move up...
We have been focusing on manual machining in our shop for a while, but I want to fire up our CNC machines for some more experimental fun. I successfully used CAMBAM with our CNC mill (Fanuc 3M) to create an instrument panel for a friend. I used CB because it was much easier to get a working post...
It was maybe two years ago now that my supervisor and collogue coined the term "schmuckite" to describe a stubborn, caked on residue that still plagues several machine tools in our shop.
Schmuckite is the result of many years of use with little to no cleaning done to the tool. I believe it...
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