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- เผยแพร่เมื่อ 31 ส.ค. 2017
- I get ask this question often and Mach3 turn can be a little confusing when setting up part zero's and work offsets. I have tried to be as detailed as possible to the point of being informative but not boring. I will try to keep the videos around the 15 minute mark. Please comment and let me know if the content is spot on or you would like more information and details. I will do a complete overview video to conclude the wiring in which I will go thru how the system operates. Thanks for watching , please subscribe, thumbs up if you like the video, and most importantly , Be Safe!
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Wow I have been struggling with origins for awhile this made it very clear thank you!!!
You're very welcome!
Thank you yes .in did helpt me a lot and learned much from your explanation.
Your Welcome!
good job my friend. great information
Thank You!
Great video, thanks.
Cua Nhap your welcome
Interesting. I don't think I've ever used the work offsets in Turn. I definitely have some parts to use this with! Thanks!
Like most I think I learn as the need arises. I recently posted a video to do these parts with a Sub routine which simplified the G code and made setup very easy. be sure to check that vid out.
@@CNC4XR7 Took me a bit to find it, but I did.....very good vid. Thanks!
Yes Sam, that makes perfect sense. You also can include these fixture changes in you program and the machine will run continually until the number of fixture changes have been completed. Extremely useful especially after you get your gang tooling hooked up, just push the button and let er knaw!!!! Great information as always, great job Sam.
Thanks Wyatt, Yes I did fail to mention that you can add the offset to the G code and just keep going.
So how would we add this to the g code to keep it running,
th-cam.com/video/-Qtvj5iM_VI/w-d-xo.html Check out this link, this video will explain it way better than I could plus it offers a lot of good information on post processors.
Cncmike68
At the end of the code you will have M30 stop and rewind just before this simply put G55 the copy and paste the gcode you want to rerun. Make sure it does not have a offset written into the code ie. G54
So, the video shows you how to make the post processor write the code for you when you program the part, all you have to do is have the fixtures pre determined so the references are correct.
Made sense to me and I don't even use Mach3.
Thank you!
Just a quick tip if you want to be able to accurately and dependably set your x axis zero automatically on machine start up every time.
This only works if you have accurate and repeatable homing switches.
Start mach and go to the general config screen.
Click on "copy g59.253 to g54 at startup" save the settings and then exit and re start mach.
Reference your machine home
Now make sure you have the correct tool that is in your holder called up in mach.
Now command g59p253.
At this point you need to accurately zero your x axis - if you use a test cut as your method then do it. Set z zero at a safe increment somewhere maybe 6 inches off the chuck.
Look at your fixture offsets and scroll down to the g59.253 and make sure there are now work offsets in there.
When you re start mach from now on it will copy the offsets from g59.253 and you will start out in g54 with your part zero for the x axis.
Just need to home your machine and you should never need to adjust your x zero again.
You only need to zero z before beginning your cut.
Thanks for the tip!
@@CNC4XR7 It took me a while to figure out why my g54 zero was all over the place. Once I started this method I only have to re zero if my master tool changes. I also heavily use tool wear offsets to dial in accuracy.
Great tip, Yes tool wear is a big help!
have you had any issues with running a fusion 360 gcode on mach turn ? or do you use another cam software?
Yes the code is not always what I want so i end up editing it. Threading is a issue. most other cam ops are ok.
7:46 it will spring cut when you move axis back. just stop spindle and measure when tool is there
i normally just run the code and measure the part and adjust as needed. I start with a negative tool wear and adjust. I find this works well as YES the is a spring effect that will through you off.
when you set the X zero , does it matter which screen your in ??
no as it changes on all of them. however there is not a zero button on all the screens.
we had revision a dynamyte lathe for mach3 at a our highschool. but now we cant use it because we dont know which cam processor should use. and what are g codes for mach3 lathe. by the way sorry about my english . its not good. my question is neceessary a port processor for this machine can we use it only manuel g code? if a post processor necessary for use this . how can we find it and which one? thanks your help
I use the generic fanuc post processor ans modify as needed.
Good day, I have a problem with the travel in the cars of X and Z on a lathe, I adjust them in settings and in mill I move them and they run the distance with precision. but on turning I move it .1 "the X axis and it moves .210" and on the Z axis I move it .1 "and it moves 0.030" thanks.
There could be several things going on. what are the Ball screw Size on the lathe compared to the Mill? RM1605 are 5mm pitch and RM1204 are 4mm pitch. so the calculations will be different.
Also if you are in diameter mode the X travel will be double shown on the DRO
@@CNC4XR7Hi, how are you? I made the settings on the main screen of mach 3 the settings screen (Alt-6) (set steps per unit) one, but the machine is a wood lathe and has its own pc, the other machine is totally separate with separate pc, it is a cnc router and it works very well. and did it again today but without success.
Hi there, i got a problem with my CNC Lathe setup. When i do my touchoff on X and measure diameter of part and input it into Mach 3 , then i proceed to do a “G1 X0” the tool does not move to Centerline. It moves to opposite side of diameter i measured. Now FYi this controller was on a old CnC Mill, therefore the controller is a little old aswell. Could it be the controller or could it be a setting in Mach 3? Please give me feedback i al breaking my head. Thanks
Hmmm without looking at the screen it sounds like your inputting a Diameter Say 1" But your screen is setup for Radius Mode ? So the 1" input would be actually 2" then when you g0 X0.0 it moves 1".
Check for Mode.
in Config /ports pins turn options top left make sure Diameter mode is checked.
hi I have a question for you looking at using Mach 3 turn what post processor are you using in fusion to mach 3 turn please
I use the Mach3 turn post processor I often have to modify it for CSS etc.
did you run into any problems with mach forgetting where z 0 is. I followed the same steps you perform and well sometimes it works and others its fine till i run the program and it does what ever it wants. I start g54 enter light face to get z0 then will take a light skim and measure for x0. When it doesn't work after I cycle start it thinks z 0 is usually about .500 from where z0 actually is closer to the spindle and x0 goes way out sometimes.
well a couple things to watch out for. make sure persistent dro's are checked in config that way it remembers where it is after a power down. also make sure the tool # is correct when you set your zero's and make sure your tool call are T0101 the second 01 is tool offsets.
I think i understand so if like say my job starts with tool #4 enter T0404-Enter, G54-Enter, then set the Z and X 0. Oh I have one other question but its about the tach signal going to mach what do you pull the signal from to send to mach. I have the G0752. I was thinking I could tap into the signal for the factory tach but feel like I'm going to have to use the same tach you are using because I think the grizzly one is more than 1 pulse per rev.
Hi Kyle,
Does your DRO's match the distance your tool is off the part? when the craziness happens?
if not check for mechanical issues. if so dbl check and make sure not offsets are set clear them and start over. hopefully you got it.
The 752 tach signal I cant say for sure it looks as though it has a magnetic pickup? with only one magnet?
if so you should be good. the Yellow wire from the tach looks to be the signal or pulse. as long as it transitions from 1-4 volts you should be able to tap into this wire and run it to the BOB like I did.
ill check that out this week, that's what i was thinking with the tach until I saw all these people creating transistor circuits and i was like ehh I don't know know. I'll check this weekend to see if that offset parameter is checked and that the DRO matches.
well i have been out of the country for the past month and just got back and hooked up the same tach you have seemed overly simple, what I am having a problem with is getting mach to match the tach. sometimes it reads correctly sometimes the rpm drops to 48 and sometimes it bounces all over the place. but the tach on the unit remains steady, is there something in mach that needs to be calibrated?
Hi Sam , i cant set on x axis centerline i use postproccesor on mastercam 2 x Lathe machine type z axis ok but x axis not to be. for example my stock diameter 25 mm i setting tool setup all step but x axis any way not to be right. please help me. If you want see video i can send u. thanks have a nice day be safe.
Do you have Mach3 set to radius mode or diameter mode?
@@CNC4XR7 I have set to diameter mode. Should be have set to radius mode?
@mcht10u ah yes that will do it.