Readpoints

[Jeff Andresen]

I was reading an old thread about readpoints and was alittle confused. Could someone provide a "really" simple example of how I could use readpoints to simplify the measurement process (alignments etc).

Thanks

[Wes Cisco]

I was reading an old thread about readpoints and was alittle confused. Could someone provide a "really" simple example of how I could use readpoints to simplify the measurement process (alignments etc).

Thanks

I just learned about these this morning. See if this helps you.

[#2#]

What Wes/Craig posted is a good use for them.

I use them at the beginning of a program to ensure that no matter where the operator manually leaves the probe in relation to the part it will not crash. I put in a readpoint right after the dcc command. Then, I put in a move point that references the readpoint's location.

So, for example if I start out with angle A0B0 I put in the readpoint (pnt1) and then the movepoint (move/point pnt1.x,pnt1.y,10). That causes the probe to move up 10 in z no matter where it is located.

It works kind of like a clearplane before the first dcc feature without using a clearplane.

[JamesMannes]

What Wes/Craig posted is a good use for them.

I use them at the beginning of a program to ensure that no matter where the operator manually leaves the probe in relation to the part it will not crash. I put in a readpoint right after the dcc command. Then, I put in a move point that references the readpoint's location.

So, for example if I start out with angle A0B0 I put in the readpoint (pnt1) and then the movepoint (move/point pnt1.x,pnt1.y,10). That causes the probe to move up 10 in z no matter where it is located.

It works kind of like a clearplane before the first dcc feature without using a clearplane.

In the example you have provided, a MOVE/INCREMENT is what you are achieving.

[#2#]

In the example you have provided, a MOVE/INCREMENT is what you are achieving.

OK, I'll have to give that a try. Thanks for yet another tip James!

[cmmguy]

Increment doesnt let you know where the probe is...

[cmmguy]

Is there a way to query the current probe angle?

[bw_bob]

The only time i use readpoints is at the beginning of programs. I place the probe were desired & the correct probe angle. I do a readpoint set it at my xyz orgin. I then go to dcc and continue setting up the alignment. Does away with manual hits.........love it

[JamesMannes]

Increment doesnt let you know where the probe is...

That would be true and it doesn't move to pnt .x and .y of your readpoint.

[Doug Jimison]

Is there a way to query the current probe angle?

Do a search in PC-DMIS help for "PROBEDATA". It shows all sorts of data you can get from the probe. I use it a lot and it works great.

[#2#]

That would be true and it doesn't move to pnt .x and .y of your readpoint.

Oh, so a move/increment if I put it in as 0,0,1 is going to move up 1 inch no matter where it started. If I put in the readpoint, etc it will move up to 1 inch above the z-orgin. So, can I put in a move/increment as 0,0,whatever the z orgin is set to .z+1 to get it to move 1 inch above the z-orgin?

[cmmguy]

Do a search in PC-DMIS help for "PROBEDATA". It shows all sorts of data you can get from the probe. I use it a lot and it works great.

My help says "No Topic Available"...

[cmmguy]

Oh, so a move/increment if I put it in as 0,0,1 is going to move up 1 inch no matter where it started. If I put in the readpoint, etc it will move up to 1 inch above the z-orgin. So, can I put in a move/increment as 0,0,whatever the z orgin is set to .z+1 to get it to move 1 inch above the z-orgin?

I wish it would let you move just one axis at a time.

[JamesMannes]

I wish it would let you move just one axis at a time.

It does just type in 0,0,1 and it will only move up 1 inch or 1mm.

[#2#]

Oh, so a move/increment if I put it in as 0,0,1 is going to move up 1 inch no matter where it started. If I put in the readpoint, etc it will move up to 1 inch above the z-orgin. So, can I put in a move/increment as 0,0,whatever the z orgin is set to .z+1 to get it to move 1 inch above the z-orgin?

I just tried a move/increment with 0,0,pnt1.z+.2 and it only moves .2 in z no matter where the probe is located.

So, I think I will stick with the readpoint & movepoint routine. That way no matter where the probe is left I can have it move straight up in Z and not in x or y until it is a set distance above the z orgin.

I wish it would let you move just one axis at a time.

???