Precision turning

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suntravel
Posts: 2640
Joined: Thu Sep 23, 2021 3:49 pm
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Location: Germany

Precision turning

Post by suntravel »

That is what you can get with cheap Chinese hardware (Machine, Servos, Ball Screws and Scales) if you use Acorn Six CNC....

10 Parts within 0.01mm, no special effort, tools measured with the TTO, Programm with Intercon, hit and run, no further corrections in the setup or tool wear.

5 Tool changes per part with a Chinese Multifix copy tool holder, no special efforts, just an ok set up cheap machine.

Chuck is a good EU made Bison, Acorn Six with closed loop, scales and dialed in with all compensations, Beta 5.19 software.

OD threads with 2000 rpm, Id threads rigid tapped with 1000 rpm.

I am very pleased how easy it is to make good parts fast with Centroid CNC.

Uwe
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cnckeith
Posts: 7929
Joined: Wed Mar 03, 2010 4:23 pm
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Re: Precision turning

Post by cnckeith »

right on! impressive. thanks for posting.
Need support? READ THIS POST first. http://centroidcncforum.com/viewtopic.php?f=60&t=1043
All Acorn Documentation is located here: viewtopic.php?f=60&t=3397
Answers to common questions: viewforum.php?f=63
and here viewforum.php?f=61
Gear we use but don't sell. https://www.centroidcnc.com/centroid_di ... _gear.html


Stephan
Posts: 83
Joined: Thu May 12, 2022 2:13 pm
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Re: Precision turning

Post by Stephan »

Is it just aluminum?


suntravel
Posts: 2640
Joined: Thu Sep 23, 2021 3:49 pm
Acorn CNC Controller: Yes
Allin1DC CNC Controller: No
Oak CNC controller: No
CNC Control System Serial Number: 6433DB0446C1-08115074
DC3IOB: No
CNC12: Yes
CNC11: No
CPU10 or CPU7: No
Location: Germany

Re: Precision turning

Post by suntravel »

With high alloy tool steel also no problem to be within IT7 tolerance from first part on...

... but I hate cleaning steel chips, even if they have a cool blue color :lol:

Uwe
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cnckeith
Posts: 7929
Joined: Wed Mar 03, 2010 4:23 pm
Acorn CNC Controller: Yes
Allin1DC CNC Controller: Yes
Oak CNC controller: Yes
CNC Control System Serial Number: none
DC3IOB: Yes
CNC11: Yes
CPU10 or CPU7: Yes
Contact:

Re: Precision turning

Post by cnckeith »

cool!
Need support? READ THIS POST first. http://centroidcncforum.com/viewtopic.php?f=60&t=1043
All Acorn Documentation is located here: viewtopic.php?f=60&t=3397
Answers to common questions: viewforum.php?f=63
and here viewforum.php?f=61
Gear we use but don't sell. https://www.centroidcnc.com/centroid_di ... _gear.html


suntravel
Posts: 2640
Joined: Thu Sep 23, 2021 3:49 pm
Acorn CNC Controller: Yes
Allin1DC CNC Controller: No
Oak CNC controller: No
CNC Control System Serial Number: 6433DB0446C1-08115074
DC3IOB: No
CNC12: Yes
CNC11: No
CPU10 or CPU7: No
Location: Germany

Re: Precision turning

Post by suntravel »

And now small long parts without using a center point...



Uwe


suntravel
Posts: 2640
Joined: Thu Sep 23, 2021 3:49 pm
Acorn CNC Controller: Yes
Allin1DC CNC Controller: No
Oak CNC controller: No
CNC Control System Serial Number: 6433DB0446C1-08115074
DC3IOB: No
CNC12: Yes
CNC11: No
CPU10 or CPU7: No
Location: Germany

Re: Precision turning

Post by suntravel »

Milling is also ok with compensation dialed in right.

Fusion 4mm, real part 4.001 - 4.007mm right after posting and hit cycle start on a cheap chinese benchtop mill within a series of 10 parts...

Finding center of the turned part is <0.005 mm deviation with KP3 probe compared to a dial indicator on the spindle.

Uwe
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