New Build, PM2700 lathe with Acorn, Videos and Photos <upgraded to AC servos>

All things related to the Centroid Acorn CNC Controller

Moderator: cnckeith

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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

New Build, PM2700 lathe with Acorn, Videos and Photos <upgraded to AC servos>

Post by suntravel »

Started to convert my lathe to CNC

Spindle will be driven by a JMC 1.5kw Servo maybe with C-axis since I can switch the Servo from speed to position mode with an input
Z-axis also JMC Servo 0.4kw 220V
X-axis Stepperonline CL Stepper 4Nm

Late I will build me a 8 Station turret

First I had to make a spindle extension, to mount the beltdrive for the encoder, and anyway the original design with open spindle in the gearbox was crap.

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Still waiting for the servos, but got the Acorn today and made the cabinet with the stuff I already have. Pretty easy as expected, simply following the manuals, and the X-axis ist working already.

When the cabinet ist completed I will make the brackets for the Servos and ball-screws. Hope to get this done in one weekend....

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Uwe
cnckeith
Posts: 4665
Joined: Wed Mar 03, 2010 4:23 pm
Acorn CNC Controller: Yes
Allin1DC CNC Controller: Yes
Oak CNC controller: Yes
MPU11 & GPIO4D -w/ 3rd Party Drives: Yes
DC3IOB: Yes
CNC11: Yes
CPU10 or CPU7: Yes
CNC Control System Serial Number: none
Contact:

Re: New Build, PM2700 lathe with Acorn

Post by cnckeith »

nice work! thanks for posting, looking forward to more.
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: 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: New Build, PM2700 lathe with Acorn

Post by suntravel »

Made the drawings for the parts I need to fit ballscrews in the lathe and well the best DIY CNC is nothing with a crappy machine, so i reworked the slides. They were fitted with an angle grinder and had lots of play. Machined them for a snug fit with the mill, scraping would habe been better, but to much effort for a hobby lathe. But well now it cuts of steel like a real lathe :)

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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: New Build, PM2700 lathe with Acorn

Post by suntravel »

Acorn mill builds Acorn lathe :)

Seems to be more time consuming than I thought. Made the parts for the X-axis stepper today and for holding the Z ballscrew nut.

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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: New Build, PM2700 lathe with Acorn

Post by suntravel »

Got both ballscrews fitted today, kind of tricky to make room for the X-axis nut, but works :)

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Uwe
cnckeith
Posts: 4665
Joined: Wed Mar 03, 2010 4:23 pm
Acorn CNC Controller: Yes
Allin1DC CNC Controller: Yes
Oak CNC controller: Yes
MPU11 & GPIO4D -w/ 3rd Party Drives: Yes
DC3IOB: Yes
CNC11: Yes
CPU10 or CPU7: Yes
CNC Control System Serial Number: none
Contact:

Re: New Build, PM2700 lathe with Acorn

Post by cnckeith »

right on! nice.
you should put all these photos in a google photo album and then keep adding to it as you go along.
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: 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: New Build, PM2700 lathe with Acorn

Post by suntravel »

Started a google album for the new progress..

https://photos.app.goo.gl/w9edyv7sKFZWxopJ6

Had to fit the X-axis ballscrew with new balls, because I droped the Nut, not the funniest thing to do :D

Both axis installed now, but still waiting for the servos for the spindle an z-axis

Uwe
Last edited by suntravel on Fri Mar 18, 2022 6:44 pm, edited 1 time in total.
cnckeith
Posts: 4665
Joined: Wed Mar 03, 2010 4:23 pm
Acorn CNC Controller: Yes
Allin1DC CNC Controller: Yes
Oak CNC controller: Yes
MPU11 & GPIO4D -w/ 3rd Party Drives: Yes
DC3IOB: Yes
CNC11: Yes
CPU10 or CPU7: Yes
CNC Control System Serial Number: none
Contact:

Re: New Build, PM2700 lathe with Acorn

Post by cnckeith »

thanks, link doesn't work for me.
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: 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: New Build, PM2700 lathe with Acorn

Post by suntravel »

cnckeith wrote: Fri Mar 18, 2022 6:33 pm thanks, link doesn't work for me.
Never used google album before...

... changed the link, hope it works now.

Uwe
Last edited by suntravel on Fri Mar 18, 2022 6:57 pm, edited 1 time in total.
cnckeith
Posts: 4665
Joined: Wed Mar 03, 2010 4:23 pm
Acorn CNC Controller: Yes
Allin1DC CNC Controller: Yes
Oak CNC controller: Yes
MPU11 & GPIO4D -w/ 3rd Party Drives: Yes
DC3IOB: Yes
CNC11: Yes
CPU10 or CPU7: Yes
CNC Control System Serial Number: none
Contact:

Re: New Build, PM2700 lathe with Acorn

Post by cnckeith »

works now.. looks fantastic! looking forward to more photos and video (yep you can put video in the google photo album as well!)
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
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