Hobby lathe with AC servos

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suntravel
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Location: Germany

Hobby lathe with AC servos

Post by suntravel »

Finished the lathe and can start to make some parts now.

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Here is a complete process how I make parts with the lathe:



Uwe
lavrgs
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Re: Hobby lathe with AC servos

Post by lavrgs »

Absolutely fantastic!!! A couple questions; what is the device you are using for tool touch off? and what is the tool post?

You are a bad influence - now I need a cnc lathe 9-)

Bill
suntravel
Posts: 843
Joined: Thu Sep 23, 2021 3:49 pm
Acorn CNC Controller: Yes
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CNC12: Yes
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CNC Control System Serial Number: 6433DB0446C1-08115074
Location: Germany

Re: Hobby lathe with AC servos

Post by suntravel »

Tool Touch Off is a cheap chinese 3D probe with NPN circuit and a self made Tip.

Tool post is a solid block cast iron with a Multifix quick change system on top.

Multifix is very popular in Germany and Swiss on manual lathes.

Uwe
lavrgs
Posts: 264
Joined: Sat Aug 11, 2018 11:22 pm
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Allin1DC CNC Controller: No
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Re: Hobby lathe with AC servos

Post by lavrgs »

suntravel wrote: Sun Apr 17, 2022 12:47 pm Tool Touch Off is a cheap chinese 3D probe with NPN circuit and a self made Tip.

Multifix is very popular in Germany and Swiss on manual lathes.

Uwe
Do you touch the diameter and the end of the probe tip?
I found the Multifix post...I'll have to save my pennies 9-)
suntravel
Posts: 843
Joined: Thu Sep 23, 2021 3:49 pm
Acorn CNC Controller: Yes
Allin1DC CNC Controller: No
Oak CNC controller: No
MPU11 & GPIO4D -w/ 3rd Party Drives: No
DC3IOB: No
CNC12: Yes
CNC11: No
CPU10 or CPU7: No
CNC Control System Serial Number: 6433DB0446C1-08115074
Location: Germany

Re: Hobby lathe with AC servos

Post by suntravel »

Yes, acorn lathe dose this in one go if you choose Measure X and Z auto.

There are lot of copies from Multifix on the market, chinese ones are cheap, good ones from AXA Germany have perfect quality for a few more bucks.

Uwe
lavrgs
Posts: 264
Joined: Sat Aug 11, 2018 11:22 pm
Acorn CNC Controller: Yes
Allin1DC CNC Controller: No
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MPU11 & GPIO4D -w/ 3rd Party Drives: No
DC3IOB: No
CNC12: Yes
CNC11: No
CPU10 or CPU7: No
CNC Control System Serial Number: none
Location: Oregon

Re: Hobby lathe with AC servos

Post by lavrgs »

Is the probe a touch probe with a different stylus?
suntravel
Posts: 843
Joined: Thu Sep 23, 2021 3:49 pm
Acorn CNC Controller: Yes
Allin1DC CNC Controller: No
Oak CNC controller: No
MPU11 & GPIO4D -w/ 3rd Party Drives: No
DC3IOB: No
CNC12: Yes
CNC11: No
CPU10 or CPU7: No
CNC Control System Serial Number: 6433DB0446C1-08115074
Location: Germany

Re: Hobby lathe with AC servos

Post by suntravel »

yep with a 10x2mm flat tip.

Uwe
suntravel
Posts: 843
Joined: Thu Sep 23, 2021 3:49 pm
Acorn CNC Controller: Yes
Allin1DC CNC Controller: No
Oak CNC controller: No
MPU11 & GPIO4D -w/ 3rd Party Drives: No
DC3IOB: No
CNC12: Yes
CNC11: No
CPU10 or CPU7: No
CNC Control System Serial Number: 6433DB0446C1-08115074
Location: Germany

Re: Hobby lathe with AC servos

Post by suntravel »

The lathe works as a fast saw also....



Uwe
Philtrueman
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Contact:

Re: Hobby lathe with AC servos

Post by Philtrueman »

When you say that you have servo motors. Do you mean stepper motors with encoders "hybrid steppers"? I have a milling machine with servo motors but they are DC and i don't think that they will work with the Acorn control board.
lavrgs
Posts: 264
Joined: Sat Aug 11, 2018 11:22 pm
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MPU11 & GPIO4D -w/ 3rd Party Drives: No
DC3IOB: No
CNC12: Yes
CNC11: No
CPU10 or CPU7: No
CNC Control System Serial Number: none
Location: Oregon

Re: Hobby lathe with AC servos

Post by lavrgs »

Prior to my conversion I bench tested Acorn using the original DC motors and Gecko G320 drivers. The problem with the Geckos is they are limited to 80 VDC.. among other limitations.
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