Settings for 3D roughing and finishing tool

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Soapyjoe
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Model of CNC Machine: Heiz High Z Machine German manufacture
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Settings for 3D roughing and finishing tool

Post by Soapyjoe »

Hi Everybody,

I am attempting to machine some domes from oak.

I wonder what have other member of this forum found to be the best depth and step over settings to produce the above ?

I am constructing 50 mm per side Pentagons shaped into spherical domes to a depth of around 14 mm.

At the moment I am finding the roughing tool far too slow and the finishing tool too quick... obviously I need to increase the setting on the roughing tool and decrease the setting of the finishing tool ..... but I do wonder by how much?

I am, at present, using a 6 mm diameter slot drill for the roughing and a 6 mm bull nosed tool for the finishing..... the finish leaves a lot to be desired.

Your recommendations would be very appreciated.

Soapy

ger21
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Re: Settings for 3D roughing and finishing tool

Post by ger21 »

What settings are you currently using?
Gerry - http://www.thecncwoodworker.com

Soapyjoe
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Joined: Mon Aug 10, 2015 8:57 am
Model of CNC Machine: Heiz High Z Machine German manufacture
Location: Derbyshire, England

Re: Settings for 3D roughing and finishing tool

Post by Soapyjoe »

Hi, I am using a depth setting of 0.5 mm and a step over of 2 mm,

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Adrian
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Re: Settings for 3D roughing and finishing tool

Post by Adrian »

For the finish tool a stepover of 2mm on a 6mm tool is way too big. You need 8 to 10% of the tool diameter so 0.48 to 0.6mm would be much better.

Soapyjoe
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Posts: 375
Joined: Mon Aug 10, 2015 8:57 am
Model of CNC Machine: Heiz High Z Machine German manufacture
Location: Derbyshire, England

Re: Settings for 3D roughing and finishing tool

Post by Soapyjoe »

Thanks once again Adrian,

Your help is really appreciated

Soapy

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