manual tool change not working after update

Ismacr63 wrote:

It's working now!!!! I was able to machine my first piece successfully, although due to a mistake on my part I broke the carbide cutter

Now I have another problem... the piece doesn't have the correct measurements.

In Z I should have gone down to Z-10 only and that's what probe basic indicated
but it went down to 15.8mm, I don't know why because when I tell it to go to Z-10 it goes down 10mm...
 

 

Post your setup process starting from setting up the probe and the tool offset and part work coordinates offset. 

Are you referring to how I have the 3D probe, the offset tool table and the workpiece coordinates configured? If so, I will upload some Probe Basic screenshots tomorrow.

if you ae new to cnc, there are many pieces to the puzzle of offsets.

maybe lets start by finding out what type of spindle you have, repeatable or non repeatable holder type.

ER16/20 type spindles found on routers are an example of non repeatable holder spindles, while R8 with TTS, ISO20/30, BT30/40, CAT40 are known as repeatable holders.

both are ok to use but have different methods for setting tool/work offsets.

repeatable holders measure the tool length against the spindles gage line (or a repeatable point of the spindle nose that will never change. this allow use to set the tool length offset as the distance below the spindle gage line for all tools and store each tool's cutting tip to gage line distance in the tool table as the tool length offset. in theis scenario the touch probe also has a tool length offset which is the triggered point of the probe to spindle gage line. when you have these set correctly and probe the work piece with the touch probe loaded and its length offset active, it records the z touch point less the probe tool length offset to set the active work offset G54-59 as being zeroe'd to the spindle gage line. all subsequent tool calls will then use the tool tables stored length offsets to adjust the spindle's height so that the currently active tool and its length offset will put the tool's tip at the same work offset zero height when at Z0.0000. from there the cam program will move each tool's tip relative to the work offset zero point.

if yhou have any of those numbers incorrect you will experience deviation from that expectation. remember, the machine can only operate with the information you give it and if that information is incorrect the result will be incorrect.

the second type of spindle is the non repeatable spindle which means that the length of the a tool you use will not be mounted reliably with the same length offset for each instance of loading the tool in the collet. for this instance most people will reset the work offset z height after each tool load in the spindle. this ensures that the program will move the tool as expected with the tool's tip being reference against the work offset zero plane.

that said why don't you explain how your machine falls into those categories and your work flow for setting up to cut the part.

1- which spindle type

2- how are you setting the tool offset / probe length offset / work offset

3- what are you entering into the tool table

Lcvette wrote:

if you ae new to cnc, there are many pieces to the puzzle of offsets.

maybe lets start by finding out what type of spindle you have, repeatable or non repeatable holder type.

ER16/20 type spindles found on routers are an example of non repeatable holder spindles, while R8 with TTS, ISO20/30, BT30/40, CAT40 are known as repeatable holders.

both are ok to use but have different methods for setting tool/work offsets.

repeatable holders measure the tool length against the spindles gage line (or a repeatable point of the spindle nose that will never change. this allow use to set the tool length offset as the distance below the spindle gage line for all tools and store each tool's cutting tip to gage line distance in the tool table as the tool length offset. in theis scenario the touch probe also has a tool length offset which is the triggered point of the probe to spindle gage line. when you have these set correctly and probe the work piece with the touch probe loaded and its length offset active, it records the z touch point less the probe tool length offset to set the active work offset G54-59 as being zeroe'd to the spindle gage line. all subsequent tool calls will then use the tool tables stored length offsets to adjust the spindle's height so that the currently active tool and its length offset will put the tool's tip at the same work offset zero height when at Z0.0000. from there the cam program will move each tool's tip relative to the work offset zero point.

if yhou have any of those numbers incorrect you will experience deviation from that expectation. remember, the machine can only operate with the information you give it and if that information is incorrect the result will be incorrect.

the second type of spindle is the non repeatable spindle which means that the length of the a tool you use will not be mounted reliably with the same length offset for each instance of loading the tool in the collet. for this instance most people will reset the work offset z height after each tool load in the spindle. this ensures that the program will move the tool as expected with the tool's tip being reference against the work offset zero plane.

that said why don't you explain how your machine falls into those categories and your work flow for setting up to cut the part.

1- which spindle type

2- how are you setting the tool offset / probe length offset / work offset

3- what are you entering into the tool table

First of all, I want to thank you for your interest in helping me.

My milling machine is PM25MV but with a different name. The spindle is MT3, I also had the option of R8 but at the time of buying it I didn't know which one was better. I have the option of buying the R8 spindle at some point and changing it. (I think I will do it in the future).

I use ER20 tool holders with an MT3-20mm collet, I have modified them so that they maintain the height. I have checked it and it has a repeatability of 0.035mm +-.

I configure the tool displacement by touching the spindle without tools and marking Z0, then I put the tool (3D probe) touch the same point (I use a thin paper to feel) and I enter that distance in the table with the corresponding tool, and so on with the others.

I enter the diameter of the 3D probe in the table, but for the other tools I enter the diameter in Fusion 360.

Sorry for my English, I'm from Spain and I use the translator, so when I translate the translation is so bad that I don't understand many things.

Ok so you are using the probe as a master tool. I would advise against that, if you crash the probe you mist remeasure all tools after resetting the probe stylus with your method. Follow the method in the docs for best results so all tools measure from the spindle nose gage line. Then only the tool crashed or replaced requires remeasuring.

kcjengr.github.io/probe_basic/probing.html#probing-setup

Lcvette wrote:

Ok so you are using the probe as a master tool. I would advise against that, if you crash the probe you mist remeasure all tools after resetting the probe stylus with your method. Follow the method in the docs for best results so all tools measure from the spindle nose gage line. Then only the tool crashed or replaced requires remeasuring.

kcjengr.github.io/probe_basic/probing.html#probing-setup

 

After a long week of work I have finally been able to spend some time on the milling machine today...
I have tried to follow the steps in the link you posted but with the translation to my language it is a bit confusing for me.
What I have done is:

With the spindle nose I have reached my jaw and with a very thin paper I have touched 0.
Then I have mounted the 3d probe and I have touched the position of the probe at the same point and I have entered that distance in the tool table for the 3d probe

Then touching 0 with a thin paper I have done the same for the other tools.

I don't know if it is the correct way....

I have also been watching a video (I think it is yours) but I am not clear on how to do it either.  Probe Basic Tool Setter brief Tutorial (youtube.com)