Which measurement system is initialized at power-up?
Actually, the choice between whether the Imperial measurement system or the Metric measurement system is initialized can be done on the...
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Mike Lynch
2 min read
How does G66 work?
G66 is one of the more misunderstood custom macro B commands. Fanuc calls it a modal custom macro call. It looks just like a G65 command....
5,188 views0 comments
Mike Lynch
3 min read
What are directional vectors?
Current model CNC controls make it easy to create circular commands. You simply specify the direction (G02: clockwise or G03: counter...
407 views0 comments
Mike Lynch
1 min read
How do you switch from OD to ID chucking on a turning center?
How would you go about programming I.D. chucking on a Fortune V-turn 26 with Fanuc 18 since there is not a physical switch to change from...
3,611 views0 comments
Mike Lynch
3 min read
What are the differences between manual, conversational, and CAM system programming?
I was wondering if there is any difference between NC programming and conversational. One of my co-workers says NC is more accurate and...
2,891 views0 comments
Mike Lynch
1 min read
Can I change the retract between pecks of a G73 cycle?
I would like to know if there is a way to change the value of the rapid clearance of .100 between pecks in the chip-break peck-drilling...
709 views0 comments
Mike Lynch
1 min read
What is the difference between helical and spiral interpolation?
I was reading your section on thread milling, and parametric programing and noticed that it said there was a difference. Thank you, Hal...
1,049 views0 comments
Mike Lynch
6 min read
What are the benefits of constant surface speed?
We are a small machine shop located in Ohio. I had read an article sometime back in your newsletter on this subject but I cannot remember...
1,432 views0 comments
Mike Lynch
2 min read
Why can't I load all programs from one file?
Hello Mike. We are trying to call up our programs from a PC-DNC in my office to the control out in the shop. We are using a Fanuc 6M...
49 views0 comments
Mike Lynch
4 min read
How can I confirm that the right pallet is in position?
We have (4) Mori Seiki SH-630 Horizontal Machining Centers. They have Fanuc-type controls (model MSC-502) on them. The question I have is...
1,958 views0 comments
Mike Lynch
3 min read
How can I assign more than six program zero points on Fanuc controlled machining centers?
I would like information on creating more than 6 work offsets on the older Seiki (Fanuc compatible) controls. Any ideas how to reuse or...
426 views0 comments
Mike Lynch
4 min read
How do you decide between conversational (shop floor) programming and programming off line?
We are getting a new MAZAK vertical and I am wondering if we should switch from manual G code programming to Mazatrol. Our parts are...
116 views0 comments
Mike Lynch
2 min read
What is the difference between mean, nominal, and target dimensions?
Could you please give me an example of programming a lathe using mean vs. nominal one that would include a couple of different diameters...
12,392 views0 comments
Mike Lynch
5 min read
How is G50 used to assign program zero on turning centers?
I am a CNC operator who recently took a job teaching entry level CNC. Some of the machines here at the training center are pretty old -...
4,796 views0 comments
Mike Lynch
2 min read
A Custom Macro math question
I can perform a square-root operation such as #100=SQRT[9] which of course sets the #100 to 3. However I can't for the life of me figure...
463 views0 comments
Mike Lynch
3 min read
How does G61 work?
Can you explain the use of G61 for machining centers and turning centers? Thank you, Art. Response: Art, For Fanuc and Fanuc-compatible...
6,980 views0 comments
Mike Lynch
2 min read
What is the difference between the Absolute, Relative, & Machine display screen pages on FANUC CNCs
Can you please explain the differences? Response: These coordinate systems provide three different ways to track the machine's movements....
23,069 views1 comment
Mike Lynch
3 min read
Which mode is better, inch or metric?
Most companies work exclusively in one mode or the other. If the bulk of their prints are dimensioned in inch (as with most companies in...
45 views0 comments
Mike Lynch
1 min read
When should you tap?
Tapping tends to be the most error prone and frustrating operation a machining center performs. Depending upon the tap style, the...
26 views0 comments
Mike Lynch
2 min read
When is a 5 axis machining center required?
Though I don't want to over-simplify this sophisticated type of equipment, there are only two types of five axis machining applications...
60 views0 comments
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