HOW DO I SET TOOL OFFSETS?

Help and advice for Denfords lathe control software VR Turning.

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Steve
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HOW DO I SET TOOL OFFSETS?

Post by Steve » Mon 06 Mar , 2006 9:32 am

Are there any step by step instructions for setting tool offsets?

The books are incredibly hard for the layman to understand. It would be
helpful if it had sections on "How to set up for ... (Drilling, Threading,
parting off) and had step by step instructions.

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STEP BY STEP Instructions to set lathe tooling.

Post by Steve » Mon 06 Mar , 2006 9:35 am

If you select any tool in the tool turret and drive it so its tip is in the centre front of the work piece the X and Z displayed position should read zero.

If it does not then follow this procedure.

The first thing to do is to select tool 1 in the Tooling library make sure it is active and make sure the X and Z offsets read 0.

Then open the offsets window. Ensure Offset one is active.

Fit a billet then turn a diameter and leave the tool level with it in X but move clear of the billet. Click on the Datum symbol to the right of the X offset in the work offset window.

Another window opens. Type the actual bar diameter into the diameter box and ensure Include diameter is selected. Click OK.

The X position display in the manual control panel will now display the bar diameter value. If you jog in the X axis the display will read zero when the tool is at the centre of the billet.

Now jog the tool to the face of the billet and face off the front of the bar. Click on the Datum symbol to the right of the Z offset in the work offset window.

Another window opens. Type tool is touching the face of the bar and is at Z 0 so enter o in the clearance box. Click OK.

The Z position in the control panel window will now read zero also.

Close the OFFSET Window.

You will repeat the above procedure to set up for manufacture if different billet sizes are used so that the machine knows where it is.

Now you have to set up each tool in turn in relation to tool 1.

Select the parting tool from the tooling window. Index until the tool is current.

Jog the tool until it touches the turned diameter. Click on the Datum symbol to the right of the X offset in the "Tooling" window.

Another window opens. Type the actual bar diameter into the diameter box and ensure Include diameter is selected. Click OK.

The X position display in the manual control panel will now display the bar diameter value. If you jog in the X axis the display will read zero when the tool is at the centre of the billet.

The tool offset X display will now show the difference in the length the tool sticks out of the turret compared to the turning tool.

Repeat this for the Z axis. Touch the left hand face of the parting inset on the face of the bar then click the Z Datum button in the Tooling window and enter a clearance value of zero.

The same is done for all external tools ( the point of the treading insert is positioned on the corner face of the turned billet and the X diameter entered and a clearance in Z of Zero.


For drills touch the side of the drill on the diameter of the bar then click the datum. Enter the value (bar diameter + drill Diameter)

For the Z offset just touch the tip of the drill on the face of the turned bar then enter offset of zero.


When you are finished you should have all the tools set.

The first tool should have offsets of X & Z =0. All the other tools should have an offset relating to the relative position to tool 1.


If any tool is selected and jogged to the centre line of the billet the X display should read Zero.

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Re: HOW DO I SET TOOL OFFSETS?

Post by Steve » Thu 08 Dec , 2011 11:13 am

On the VR Turning CD if you select the manuals section there is a tutorial that explains how to set tool offsets.


www.denfordata.com/pdfs/vr-turning-training-guide.pdf

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Re: HOW DO I SET TOOL OFFSETS?

Post by Steve » Wed 05 Sep , 2012 14:14 pm

another useful document on setting up the tool library and offsets on a MicroMill.
Attachments
Setting up a MicroTurn with Recommended Tooling.docx
(979.93 KiB) Downloaded 1151 times

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Re: HOW DO I SET TOOL OFFSETS?

Post by Steve » Wed 22 Mar , 2023 11:32 am

Videos on how to setup Lathe tooling
https://www.denfordata.com/downloads/Se ... 270Pro.zip

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