Indexing: The sag in the middle

Topics related to wrapped rotary machining in Aspire or VCarve Pro
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toldozy
Posts: 20
Joined: Wed Nov 02, 2011 6:17 pm
Model of CNC Machine: legacy arty

Indexing: The sag in the middle

Post by toldozy »

Hello people.

My efforts at turning components 180 degrees in order to machine the backside have been seriously hindered by a sag in the middle.

The longer the component the wider the difference in the thickness between the ends of the stock (where it is held to the machine) and the middle of the stock (which bends when the bit touches it).

Tips will be highly appreciated.

Thank you.

Tolu.

signmarketingman
Vectric Wizard
Posts: 586
Joined: Sat Jan 08, 2011 12:29 pm
Model of CNC Machine: Professional done home built.
Location: SW Michigan

Re: Indexing: The sag in the middle

Post by signmarketingman »

put in some kind of steady rest to support the piece in the middle.

Mick Martin
Vectric Craftsman
Posts: 270
Joined: Thu Dec 03, 2009 7:36 am
Model of CNC Machine: CAMaster 508 ATC + Rotary
Location: Snohomish, WA
Contact:

Re: Indexing: The sag in the middle

Post by Mick Martin »

If you check this link http://www.humblesticks.com/cnc-rotary-tutorial.html there is a picture near the bottom of a self made steady.
Mick Martin
Aspire 4.015
http://mickmartinwoodworking.com/

toldozy
Posts: 20
Joined: Wed Nov 02, 2011 6:17 pm
Model of CNC Machine: legacy arty

Re: Indexing: The sag in the middle

Post by toldozy »

Mick, Sign marketing man,

Your points are seriously noted.

I am waiting for more tips before I let you know my thoughts.

Thank you.

Tolu

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