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18th Dec 2019, 05:18 PM
Thread: Home-made CNC lathe using servos
by r3292c- Replies
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Hello NGrimberg, Thanks for your interest. I...
Hello
NGrimberg,
Thanks for your interest. I don't remember I posted a picture of star in a ball here. Probably you found it in my youtube videos.
I don't want to put commercial info in this... -
21st Dec 2018, 05:16 AM
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Sticky: The nut in a nut souvenir on ebay ...
The nut in a nut souvenir on ebay
https://youtu.be/ZPXmND70FUg
https://www.ebay.com/itm/123555432233
https://www.ebay.com/itm/123555426815 -
21st Dec 2018, 05:09 AM
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- 21
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- 8,477
Here is a new puzzle - the nut in a nut. Aluminum...
Here is a new puzzle - the nut in a nut. Aluminum and brass.
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https://youtu.be/y9TkS89BGGg -
17th Nov 2018, 06:02 AM
Thread: Home-made CNC lathe using servos
by r3292c- Replies
- 14
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- 8,645
I think it's an interesting comment! The way I'm...
I think it's an interesting comment!
The way I'm using servo's on this machine is the same as one uses steppers. I provide simple "step/dir" for the servodrives. This means I've just replaced... -
17th Nov 2018, 05:16 AM
Thread: Home-made CNC lathe using servos
by r3292c- Replies
- 14
- Views
- 8,645
Yes, I do have plans to build CNC mill. That's...
Yes, I do have plans to build CNC mill. That's not going to be a CNC conversion, I don't like the idea of taking a donor with dovetail ways for the conversion. I'm thinking about building a small...
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16th Nov 2018, 08:00 AM
Thread: Home-made CNC lathe using servos
by r3292c- Replies
- 14
- Views
- 8,645
As a conclusion. What do I finally have? I have a...
As a conclusion. What do I finally have? I have a small CNC lathe with linear swiss-type tooling. Maximal X-axis travel is 165mm, that allows me to install 4 tools by 50mm distance. More tools (x 5...
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16th Nov 2018, 06:29 AM
Thread: Home-made CNC lathe using servos
by r3292c- Replies
- 14
- Views
- 8,645
Here is something about tooling. First, I...
Here is something about tooling.
First, I tried to use a simple and quick idea below. The carbide insert is installed on the top of 1/2” bolt. Of course, the height of the bolt is trimmed... -
16th Nov 2018, 04:53 AM
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Sticky: Machined souvenirs - Turner's Cubes and Balls on...
Machined souvenirs - Turner's Cubes and Balls on ebay
https://youtu.be/CEoSNdbmYxk
https://www.ebay.com/itm/12310187196...84.m1555.l2649
https://youtu.be/eDwUoK0Xv5c... -
13th Nov 2018, 06:20 AM
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Welcome newborn baby-ball! It's diameter is 25mm,...
Welcome newborn baby-ball! It's diameter is 25mm, two dodecs inside
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https://youtu.be/sf2krK5exKM -
13th Nov 2018, 06:15 AM
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Gentlemen, thank you for your inputs. No birds...
Gentlemen, thank you for your inputs. No birds nesting on the lathe anymore!
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13th Nov 2018, 05:30 AM
Thread: Home-made CNC lathe using servos
by r3292c- Replies
- 14
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- 8,645
Servodrivers are connected to LPT port of the PC....
Servodrivers are connected to LPT port of the PC. The only interface used in between of PC and servodrivers is the one recommended by Yaskawa. It’s a simple SN75174N signal converter. It takes...
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13th Nov 2018, 05:25 AM
Thread: Home-made CNC lathe using servos
by r3292c- Replies
- 14
- Views
- 8,645
The spindle is driven by 400W SGMAS-04ACA41 servo...
The spindle is driven by 400W SGMAS-04ACA41 servo motor by means of HTD-5M timing belt and 2 x 1 pulley set.
I wanted to have a more powerful motor initially but can’t find anything greater than... -
8th Nov 2018, 07:00 AM
Thread: Home-made CNC lathe using servos
by r3292c- Replies
- 14
- Views
- 8,645
I used SigmaWin+ tool to configure and auto-tune...
I used SigmaWin+ tool to configure and auto-tune my servodrives. This tool is available for free download on Yaskawa website, as well as all manuals. This tool allows to:
1. check the drive,
2.... -
8th Nov 2018, 06:08 AM
Thread: Home-made CNC lathe using servos
by r3292c- Replies
- 14
- Views
- 8,645
I use Yaskawa SGMAS-01ACA21 servo motors and...
I use Yaskawa SGMAS-01ACA21 servo motors and SGDS-01F01A drivers for controlling X and Z coordinates. Here is some basic info on screenshots below.
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HTD-3M pulleys with 4 x 1... -
8th Nov 2018, 06:03 AM
Thread: Home-made CNC lathe using servos
by r3292c- Replies
- 14
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- 8,645
The cross-feed (X-) rails are bottom-up mounted....
The cross-feed (X-) rails are bottom-up mounted. The rails are screwed directly to the table. The threaded holes of X sliding blocks were drilled through with a carbide drill bit.
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As you... -
6th Nov 2018, 02:21 PM
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Recommended conditions from Korloy are: 1. Speed...
Recommended conditions from Korloy are:
1. Speed 100-200 m/min, and I'm running at 180-360 m/min - at max diameter, but also 40-60 m/min at say 15 mm diameter;
2. Feeding 0.02-0.15 mm, I'm using... -
6th Nov 2018, 10:30 AM
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And yes, I'm making some for sale on ebay/etsy
And yes, I'm making some for sale on ebay/etsy
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6th Nov 2018, 10:29 AM
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So far I wasn't really successful with breaking...
So far I wasn't really successful with breaking chips. I tried different speeds (3-6 m/s), feeds (0.1 - 0.4 mm/turn), and the depth is 0.25mm typically. I use aluminum CCMT/CCGT Korloy inserts. The...
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6th Nov 2018, 09:49 AM
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The polishing powder is "Walnut/Corn Cob Tumbler...
The polishing powder is "Walnut/Corn Cob Tumbler Media", I don't think it has any abrasive grit.
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6th Nov 2018, 06:55 AM
Thread: (Attempt 2) Russian milling machine
by r3292c- Replies
- 24
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- 5,421
Manuals...
Manuals
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6th Nov 2018, 06:43 AM
Thread: (Attempt 2) Russian milling machine
by r3292c- Replies
- 24
- Views
- 5,421
Have you tried searching Russian forums?...
Have you tried searching Russian forums?
https://www.chipmaker.ru/topic/206123/
https://www.chipmaker.ru/topic/213480/
https://www.chipmaker.ru/topic/137314/page__hl__6%D1%8280%D1%88 -
6th Nov 2018, 06:30 AM
Thread: Home-made CNC lathe using servos
by r3292c- Replies
- 14
- Views
- 8,645
Home-made CNC lathe using servos
This is a thread about CNC Lathe I recently built. This is my first CNC machine, and obviously, I’m not a CNC guru. Being an engineer, I prefer more practical ways of making things rather than R&D...
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6th Nov 2018, 04:15 AM
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The drum can be also driven by a lathe....
The drum can be also driven by a lathe. Especially if you use VFD for controlling RPMs. I adjust RPMs of the drum listening to the sounds it generates.
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6th Nov 2018, 04:04 AM
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Nice to see that at least one person noticed...
Nice to see that at least one person noticed finishing done! Thanks! :)
Deburring and finishing is a real challenge. Since I tried to minimize manual work I experimented with my ball mill a lot.... -
1st Nov 2018, 04:34 AM
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1" - 25mm cubes, four levels 376612 ...
1" - 25mm cubes, four levels
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https://youtu.be/CEoSNdbmYxk -
1st Nov 2018, 04:32 AM
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Unseparated cubes, 2" 376610376611
Unseparated cubes, 2"
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1st Nov 2018, 04:30 AM
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2" cube, 6 levels 376609 ...
2" cube, 6 levels
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https://youtu.be/N1YvTxRAmyk -
1st Nov 2018, 04:28 AM
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"Swiss cheese" cube, 50mm 376607376608 ...
"Swiss cheese" cube, 50mm
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https://youtu.be/tmGS2PmXxx0 -
1st Nov 2018, 04:26 AM
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1-1/4" - 31mm, four levels 376604376605376606...
1-1/4" - 31mm, four levels
376604376605376606
https://youtu.be/Dv9Qlc1enck -
1st Nov 2018, 04:23 AM
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2" - 50mm, six levels 376601376602376603 ...
2" - 50mm, six levels
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https://youtu.be/eDwUoK0Xv5c -
1st Nov 2018, 04:17 AM
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Machined souvenirs - Turner's Cubes and Balls
Hello everyone! My name is Ivan. I'm new to this forum, but metalworking is my hobby for the last 12 years.
I've built CNC Lathe recently and make these metal puzzles that every chipmaker knows.... -
31st Oct 2018, 08:47 AM
Thread: Your latest project
by r3292c- Replies
- 3,019
- Views
- 1,554,862
Sticky: Hello Rob, Thanks for welcoming. And you're...
Hello Rob,
Thanks for welcoming. And you're right. Making these cubes on a manual machine requires "concentration and attention to detail for extended time periods"... However, I was able to... -
31st Oct 2018, 07:57 AM
Thread: Your latest project
by r3292c- Replies
- 3,019
- Views
- 1,554,862
Sticky: And separated https://youtu.be/N1YvTxRAmyk...
And separated
https://youtu.be/N1YvTxRAmyk
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31st Oct 2018, 07:52 AM
Thread: Your latest project
by r3292c- Replies
- 3,019
- Views
- 1,554,862
Sticky: Hello, I'm Ivan. Here is one of my latest...
Hello, I'm Ivan. Here is one of my latest projects. It's 2" big, unseparated.
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