Really informative and complete programming course. Amazing in just a total of a couple of hours. Details of the procedure to set workshift and tool offsets on the machine before starting to run the programs would be a big help.

You can also use a calculator with a P-R function. (Usually on a Casio or Sharp) So you type in your radius P-R(with the shift key) then the angle. The X value is displayed right away. Press shift X-Y and the y value is shown. If you have a SVPAM the syntax is REC( rad, angle) and X and Y are normally displayed at the same time. I'm only mentioning this as it is much quicker to do this when you are programming on a machine instead of a PC. Great vids BTW. I especially like the Do While, I can't help but to keep going back to it.

very good explanation thank you....

The machinist handbook gives all the info you need !!!!

I was hoping you had info on what the start angle might be if your first hole is center at XoYo

Thanks for the great tutorial. I also appreciate the web site you shared on quick calculations. Very helpful. I want to be more like you and help people. Thank youJames in Arlington, Texas.

Thanks Tom , I'm currently marking out 11 equ spaced holes on a sphere radius of 84cm pye R 3( cubed) Other tips most appreciated for conciseness-Trent

Tom, I am really enjoying your teaching methods! Do you have a book available? I'm a newbie. And I have some projects pending that need clarification before I flip the on switch. I've actually had my machine for over a year and have never used it yet. One reason is due to some specific mods I've had to make, and the other is I didn't have any coding experience. So I'm cramming! And I have another CNC ordered. So... I've got to get quickly, carefully, coding and soon, as we need these machines operational!

I was wondering if you think the G68: rotation would work for this. I use a rotary c axis lathe for most holes locations. I tried to talk the mill guys into using G68 with a WHILE STATEMENT

thanks sir i am new your student. me start. cnc turning. your video helping me but i need. more easy because me have change to learn. cnc milling. and lathe. dogard cnc

How would you calculate a hole location if you don’t have a start angle like your last example of a 10 degree offset? What would be the formula to calculate the missing angle if u didn’t know it was offset by 10 degrees? Thanks8)

how do you find the x and ys if your center isnt 0???? my x any center isnt 0 on the print.

I use 1/2 diameter times sin and cosin of the degrees.

If I remember correctly, there is a G code for drilling holes at specified bolt circle diameter with a specified number of holes starting at a specified angle.

Can you show how to calculate face angle

❤nicely done

thank you so much totally puts it in perspective.

NOW I get it! Thank you so much!

Thank you Sir. Long ago I used to know how to calculate a 1 inch bolt circle using a print out and then using those numbers to calculate all other measurements. I knew the hard way. Is their any place I can find how to do that again? I do own a machinist handbook. I am now back in school at 50 to learn CADD. I need to write a paper on it. Thank you. Nick

What happen to using the APT programming language to do this? PAT1 = PATERN/ARC,(CIRCLE/0,0,0,3.0),ANGLE,30,360,CCLW,12 GOTO/PAT1 APT is available on Windows

I was surprised you used the tan w/rounded off cos #. Why not just hit the sin?

Brilliant - thank you

excellent explanation, thank you for making this video!

Very smart, I used to do it on the lazy way with G68 coordinate system rotation. I am not sure but it was something like that: ... Y0. X3. ( First drilling position) M98 P0071 (Simple drilling sub) G68 X0 Y0 R30. ( rotate 30 degrees ) M98 P0071 (Simple drilling sub) G68 X0 Y0 R60. ( rotate 60 degrees ) M98 P0071 (Simple drilling sub) G68 X0 Y0 R90. ( rotate 90 degrees ) M98 P0071 (Simple drilling sub) ..... It is possible to rotate it in incremental way as well.

This video is very useful in May job very very thank you so much sir

Many thanks to you

Tom... I've been working in a machine shop for about 8 years as a advanced operator. I've decided to move ahead by learning to actually program and I'm really appreciating these tutorials you've made. I just finished watch this video and had a theory idea that I thought maybe to could confirm or negate. Could you combine this process with the process regarding the use of G68 you taught a couple videos prior to perform hole patterns? Since Zero is center and the bolt distance is 3 inch....theoretically you should be able to locate the 0, 90, 180, 270 holes....then can you run the G68 R30 for the next 4 and again for the last 4 holes?? Just curious if this would work so you don't have to program all the different X,Y cords...??

im thankful for ur information sir...

This video very helpful in my job thank you

Thanks for explaining in good way

I wish you could also add bolt diameter for all the bolt circle

Thank you so much

thanks very much great help to us beginer

Thanks, any chance of a video on Polar Coordinates and on how to use the M99 to loop as some Machine Interfaces wont allow for Parametric code?

Interesting. Why would you use the tangent of the angle with the rounded entity (x), rather than choosing the sine, and work with the actual hypotenuse (r)?

Very good formula

thank you sir

good info, thanks!

I can follow clearly what you did here. Now can you possibly help me understand what my DRO is doing. The instruction example called for a 5 hole pattern with a start angle of 30 degrees and a end angle of 300 degrees. I guess the start could be 0 or 30 which sets the position start. Where did the 300 come from??

Thankyou I never knew software like that existed.

Hi Tom This video has been incredibly helpful. My hobby is building simple clocks and I am attempting to learn enough G code to allow me to build an electronic indexing system. I think you may have given me the place to start. I was looking for a way to divide a circle into sectors ranging from 8 to 64. Have I misunderstood something or will I be able to simply say "teeth"where you say "bolts"? Robert Webb Brisbane Australia

Tannel ka redax is the bio FYI

hELLO, I THOUGHT ANGLE AND COS X hYPO WAS X AND ANGLE AND SIN X hYPO WAS y you stated tan was to get y

before. only 15year Manuel machine porter. now me start watching and larning

Beautiful

The Machineries Hand book has all the info to lay out ever thing one two three .

Tanks you sr.

thanks 👍👍👍👍👍👌👌👌👌

thanks you sir

damn being a beginner in this makes me want to blow my head off makes me double think my career

calculate is difficult but using g16 very simple

hi

Please translate Russian language I don't fluent understand English lang

what the f@#$ is it in inches . Who the hell uses that crap

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