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optirough 2021


Candicane
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Hi 

Ive a pocket i want to machine out using optirough..

I want to pre drill  the hole to remove some of the material and then optirough to machine out the pocket

Is it possible to have optirough recognisethe fact that i have  already drilled out the hole and thus avoid cutting material i dont need to ?

Similar to 2d  high speed where i can select the hole dia as the air region..

Thanks!

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To get the most out of the newest tools like Optirough will require you to drop old habits like pre-drilling. Not only does this take extra programming time, but it also adds to the workload on the shop floor setting up needless tools. Optirough will allow you to ramp your tool down to the appropriate depth to begin the clearing passes. Use it.......you won't be disappointed.

 

Carmen 

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21 minutes ago, Redfire427 said:

To get the most out of the newest tools like Optirough will require you to drop old habits like pre-drilling. Not only does this take extra programming time, but it also adds to the workload on the shop floor setting up needless tools. Optirough will allow you to ramp your tool down to the appropriate depth to begin the clearing passes. Use it.......you won't be disappointed.

 

Carmen 

Depending on the Material. I was tearing tools up ramping into Inconel and Ti. We predrilled them and the tools latest 3-6 times longer.

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To get Opti-Rough to "know" that there is a pre-drill hole, you must define Stock for the Operation. This turns the OP into an Opti-Rest Operation, but will then recognize where there "is and isn't stock".

If you just use the "Opti-Rough" with surfaces/faces and a boundary, the algorithm kicks in, and puts the "Top of Stock", at the highest "point" of your path. This could be a face or a boundary. Even a "Avoidance Surface", will trick the algorithm into believing "there is existing stock from the highest-point, down to the lowest". Without defining Stock, the path will output extra depth-cut levels.

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Also, for non-center-cutting or inserted tools, ramping into the material is never going to be an option. Check out this video for the Skip All Pockets option added in 2021 to keep the path safe for these types of tools:

 

Additionally, anytime you can create in-process stock models that represent things like predrilled holes or removed material, you're going to get benefits in Optirough/Multiaxis roughing/etc. Any path that offers the ability to turn on stock is going to get motion and efficiency improvements by adding intelligence/making the path stock-aware.

 

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11 hours ago, crazy^millman said:

Depending on the Material. I was tearing tools up ramping into Inconel and Ti. We predrilled them and the tools latest 3-6 times longer.

I was going to say the same thing.  It all depends on your material and what you your operation requirements are.  Onesy twosy parts, sure it will be fine,  but in a production setting or where you are looking for the fastest and most secure process, pre-drilling will likely (but not always) be best.

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17 minutes ago, huskermcdoogle said:

I was going to say the same thing.  It all depends on your material and what you your operation requirements are.  Onesy twosy parts, sure it will be fine,  but in a production setting or where you are looking for the fastest and most secure process, pre-drilling will likely (but not always) be best.

Another thing I will do is helix mill out the drill point if anything greater than 170 or a step inserted drill. The ramp in move is sometimes not enough to keep from overloading the tool and by doing that it also help the tool life.

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5 minutes ago, crazy^millman said:

Another thing I will do is helix mill out the drill point if anything greater than 170 or a step inserted drill. The ramp in move is sometimes not enough to keep from overloading the tool and by doing that it also help the tool life.

For sure, I like using 180 degree flat bottom drills for pre-drilling pockets, especially in titanium and steel.  They have about a .045" point to flat distance which is very quick to helix out.  Typically I will do a helix bore after the drill operation, stock model,  then dynamic or optirough, give more control to reduce the amount of entry motion.  IIRC you can get optirough to do it for you without much dinking around, but have certainly had trouble making it as optimized as I wanted it.

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  • 4 months later...
On 9/19/2021 at 12:51 AM, Shiva.aero said:

Is it possible to "define" a point for entry?

I have a condition where more than one hole exists. The extra holes are for corner relief in Inconel machining. Is it possible to select the hole for entry, just like in the case 2D Pocketing by defining points?

You Can select "hole geometry" for using things like 2D Highspeed roughing operations where the hole geometry is the air region. You can also tell it to only do a plunge entry on those specific locations by choosing the point as your 'center on point' geometry with entry motion set to 'plunge only'

Still with OptiRough, you need to use stock models to define where and where not to cut. I just made a program like this and using stock models was still the best way

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