Haas Optional Stop

[andy.concept303]

Hi all

I'm sure this has been discussed previously and should be straight forward, but I've always struggled to get an optional stop to work how I want it to, this is to be able to post out from Fusion with an Optional Stop inserted only where I want it.  For info I’m running a 2022 Haas VF-2 with NGC.

So, previously if I have 'Optional Stop' ticked in the Fusion post properties AND the Optional Stop button enabled on the Haas control, it will stop at every tool change.  Turning off on the control (still ticked in the Fusion post properties) it doesn’t stop at all.  All as I’d expect.

However, with Optional Stop still ticked in the Fusion properties AND the control button switched off, if I’ve inserted an Optional Stop Manual NC line in my Fusion set up where I want the stop, it ignores it.

Only way I’ve managed to get it to work is as follows:-

Fusion properties Optional Stop NOT ticked

Optional Stop button on control ON

Optional Stop Manual NC line in my Fusion post where I need the stop

But, regardless of whether the Manual NC command is set to ‘Optional Stop’ OR ‘Stop’, the machine does the same thing, the spindle retracts only to the retract height and stops.

I really wanted it to retract to the tool change height before the stop.  Yes a workaround is to just set he retract height much higher.

So, could someone more knowledgeable than me kindly confirm that all of the above is correct and just how it is?  Yes I could manually edit the code, but would rather not, I’m not very confident with g code editing.

Many thanks!

Andy

[Marco.Takx · Accepted solution]

Hi @andy.concept303,

By default the option in the Haas Post is ON for placing a M1 before every tool change.

So Yes, turn it of in the post and place the optional stop on the position where you want it.

But now the retract. If the machine doesn't go up to the toolchange location, you can place a manual NC (For example a Pass true : G53 G0 Z0. and then The optional stop to let it go to full retract.
If this is something you want always and don't want to place a Pass true before it, you can edit the post to let it do automatically during a M1.

If my post answers your question Please use Accept as Solution & Kudos This helps everyone find answers more quickly!

[andy.concept303]

Many thanks Marco, really appreciated, will give that a go. 

Andy

[programming2C78B · Accepted solution]

keep the control at default. 
You can keep it in fusion, and it will only stop if you hit the Op Stop button on the control panel.


I saved this as a Pass through

M5

G00 G90 G53 Z0.

G00 G90 G53 Y0.

Tx M06

M00

(TAP FLUID)

;

;

Keep in mind youll need a force tool change if your post isnt set to automatically see that m0. 

[Don.Cyr · Accepted solution]

@andy.concept303 You can do a quick post edit to move the M01 "Optional stop" to post right after the G53 retract line and before the operation comment for the next toolpath. Send me a PM and I can either show you how or change it for you.

[andy.concept303]

Many thanks guys.