Mach3: How to Set (Zero) Lathe Tools and Set Work Offsets

[@minasianjohn]

a very informative tutorial on " how to ", I had to turn up the volume way up to hesr it, great neverthe less john

[@FrancoCNC]

Thanks John. Sorry about the volume situation - all of my early videos are like that. It took me a while to figure out how to fix the problem.

[@mikesticks86]

+Franco he had to turn up the volume?wow does everybody have to complain about something all the time ,no one cares he had to turn up the volume.i heard u just fine ;damn whiney bitchez

[@mikesticks86]

quit whining about the volume,turn it up if u have to nobody cares you had to turn ,nothing is perfect

[@johanclaassens7706]

Very helpful, thank you. My project mini lathe/mill is taking shape, at the stage to do all mach3 settings.

[@ricochetproducts]

Thank you for taking the time to post. This has always been a mystery to me, you have answered all of my questions for Mach turn offsets in one video, thanks again!

[@FrancoCNC]

Thanks! I'm glad you found it helpful.

[@i5usko]

What do you typically set your depth of cut, feed rate, and spindle speeds to for aluminum brass and plastic. It is hard to find info on this for cnc. Usually everyone references the feed rate with the change gears and such. Also, in the 360 post you made for mach, you have a line of code that generates m0 for manual tool change. Is this still necessary even if you specify manual tool change in the tool info?Thanks for the videos btw. Your mini cnc vids are always the most helpful ones. Wouldn't have made it this far without your help

[@FrancoCNC]

Hi. I'm glad you like my videos. Plastic, aluminum and brass are interesting materials when it comes to speeds and feeds because "the sky is the limit" so to speak. Basically, you are only limited by the speed/rigidity/chip removal offered by your particular setup. As far as depth of cut is concerned, it is always best to be deep enough to get the tool nose radius buried. Often, on little machines, you need a tool with a small radius to reduce cutting pressure. Spindle speed is usually limited by your machine - for these materials you can come close to maxing out your machine so long as there are no vibrations. Feed rate are a similar situation - you are really only limited by the rigidity of your machine and the quality of the surface finish you want to have. One thing to keep in mind about plastic - it melts. If you are putting too much heat into the cut, you will start to see the plastic melt and you will get a funky orange peel looking finish. The M0 in the post is there to force the machine to stop and allow you to make the manual tool change. It is a safety measure as the CAM software has no idea how your physical machine is configured.

[@i5usko]

@@FrancoCNC What do you set your feed rate rpm and depth of cut to in fusion? I have mine at a feed of .4mm rpm of 2000 and depth of cut of .5mm. it seems very slow but im not sure. My set up steps over every second or so by one step. I feel like it should be faster but im used to seeing everything time lapsed and not real time. I also have a hard time visualizing these velocities so Im not even sure if my machine is moving at the specified speed.

[@i5usko]

So I think my issue was using mm per rev instead of mm per min. gonna try 50mm per min and see if that fixes my issue.

[@motomotiftipandtrik8846]

Very helpful for me

[@pauldiaz4273]

Hi franco I’ve got an issue with my cnc lathe. When i touch off my X axis, and measure diameter of stock and input it into Mach3 then when i do a G1X0, it doesnot go to centerline. It goes to opposite side of diameter. Now i am using a controller that once belonged to a CNCMill. Could it be a controller issue? Or could it be a setting in Mach3 that I don’t have enabled? Please give me feedback. Thanks Franco, by the way your videos are superb!

[@FrancoCNC]

Are you entering diameter values? Maybe your system wants radius, instead.

[@rlabiche]

great video but could you show us the run button

[@tungoctruyen92]

which cam package did you use to generate Gcode into Mach 3 ? Thank Franco !

[@FrancoCNC]

Hi. I use BobCAD. At first, I found it to be quirky. The interface felt awkward. But now I'm used to it, I like it. In fact, I'd say that for basic milling and turning, it is a great value. If you are willing to use an older version, you can probably buy it at a deep discount. Only downside is that once you give them your information, they will call you every time they are running a sales campaign.

[@tungoctruyen92]

Thank for quick and helpful reply Franco ! I use mastercam x7 for turning at first,but i dont know why when generating Gcode into Mach3,it keeps "double X-axis position" on my lathe.Example,you draw the diameter is 40 (Radius = 20),then the tool must be moved from +X 20 to origin direction(X:Z = 0:0),but in real test,mastercam will generate gcode that +X position will be moved from +X 40 -> origin direction. I draw the same and put into Cambam,then gcode is fine. Have you ever turned a haft sphere in a sphere Fran ?

[@FrancoCNC]

I switched over to Fusion360 about two years ago - it is awesome!

[@krisnabayu3709]

what a tipe motor in use axis X and Z??

[@renkpleksi8022]

Hi Franco, i use mastercam x9 generic fanuc 2 axis lathe MM post processor. But can't tool setup, i did all step but not be. If you want see, i can send u a video please help me. I do tool setup be x and z 0 but did cyle start and z axis going to stock size. Machine not starting 0

[@aljazkovse2617]

what program do u use for post-processing g code? BTW great video :-)

[@FrancoCNC]

Hi. I was using BobCAD for a long time but I've converted over to Fusion360. It's awesome. Here is a video talking about milling - I plan on doing a lathe video soon. Thanks for your comment! kzbin.info/www/bejne/eoPFYYp3fsqkq5I

[@johncalvey2238]

have you made any CNC set ups to sell yet?awesome vids thank you

[@davecox900]

Good video but had to turn off the camera movement made me sick lol

[@Миру-мир-п1е]

Пишу программы. Настраиваю станки с чпу мач3