No retract after tool change.

[nathandaydesign]

Hi. We've recently changed from a cnc with manual tool change to auto tool change. However after a tool change, the spindle doesn't retract before starting the program, which will result in a collision with the bed. 

We have so far been able to add the retract to the g code manually, but looking for this to become a default setting.

The machine manufacturer has suggested this is a Fusion issue. 

It has a Syntec processor.

Any advise would be greatly appreciated.

[seth.madore]

What codes are you manually?

If the G28 isn't working for you (it "should" be retracting home), you might need to swap to the G53 option.
One other thing; you are using the Syntec post processor, right?

 

[nathandaydesign]

Thanks for your reply. I tried both, G28 and G53 and it still doesn't produce a save retract after the tool change. And yes we have a Syntec controller unit and using the default Syntec option for the NC code

[nathandaydesign]

Hi Seth, Any more thoughts on this?

[da_fish]

Good Morning, What kind of machine/tool changer are running that you need a retract after tool change? Or did you mean before? Usually the machine will retract on a tool change. I posted out a program with the Syntec Post and it outputted retract before each tool change as I would expect. 

Here's the code I got.

[nathandaydesign]

Thanks for your reply. See attached. We had the tool changer positioned moved from its original position on the gantry to preserve usable z axis height. Now it's level/below the bed.

 

[nathandaydesign]

Obviously it's needs to retract after the tool change to avoid running into the bed.

[da_fish]

Hey I'm back,  Attached is the Syntec post from the library that I modified.   I added line 828 and 829.  This should work for you, let me know.

[nathandaydesign]

Thanks heaps- Much appreciated! Will run this and report back.