Part offset help

[jzarski1]

Ok, I am very new to SB3 so be nice. I have been running Mach3 for sometime now and learning this new software. I just got my machine up and I am playing around in preview mode before I cut something.

How do I set my XY zero to the center of the table? I still want home to be lower left but most of my parts will be cut with XY zero in center of the material. I can not figure it out, been messing with it for over an hour:mad: .

John

[steve_g]

Is this what you want? The button on the first image opens the menu on the second.

oops... I see you said SB3...

[myxpykalix]

What size table do you have? Lets assume it is a 4'x8'. First do a C3 to get to lower left 0,0. Now assuming that is right at the corner of your table (0,0) then do a
MX 48, MY 24
that will get you to the center of the table You can Zero X,Y and i believe there is a offset pulldown on the fill in sheet (computer in shed at writing) can't go check.By filling in that offset on the fillin sheet should make it a set offset. But that should get you to the center as a preset.:confused:

[jzarski1]

My table is 120x60. Where do I find that fillin sheet to set that offset?

[myxpykalix]

When you go to load the part file up in SB 3 you go do a
F P
Look for "Offset in 2D or 3D" you click 2 for offset in 2D
You'll see "Proportion X" fill in your X location
You'll see "Proportion Y" fill in your Y location

After you do the first one there is a button named "recall last" and i think if you hit that it will repeat the file over.

I believe this is the way you do it. This is not what i do, but i don't have repetitive files thus the need to do what you do.

You can also setup your own custom Cuts or keys like a C2 or C3 by going to
Cuts/Setup custom cuts (I think but not sure how)

[jerry_stanek]

in the shopbot setup there is an offset for the c3 move you can input it in and every time you run c3 it will go to that offset.

[Brady Watson]

As Jerry points out - Use the ShopBot Setup Tool located in SB3 under the Tools menu. I believe it can be pulled up by typing in the TS command.

-B

[jzarski1]

As Jerry points out - Use the ShopBot Setup Tool located in SB3 under the Tools menu. I believe it can be pulled up by typing in the TS command.

-B

Hey Brady, I am having a real hard time trying to figure this out. I can't find the tool you are talking about. If you can take a screen shot for me. I am a visual person :)

John

[jerry_stanek]

It is under tools in the shopbot screen. You have to open it and you will get a new screen that asks questions about your shopbot to set it up. it will ask about proximity switches and then give you a screen to fill in the offsets.

[jzarski1]

Well I figured out the offset thing.Thank you to everyone that helped. Now I have a few more questions.

What is a good IPS for cutting MDF with the Colombo spindle? On my Mach machine I cut at 150 IPM with a .25 compression. Taking .25 off per pass. I am trying to dial my Bot in and I am struggling.

Does the number on the VFD represent spindle speed? If not how do I know my speed?

That's it for now :confused:

John