Some years ago Wim published his turntable project in this forum (DIY Automated rotary table for automatic polar measurements - diyAudio).
We picked up Wim’s design goals
1) make a complete polar measurement with 1 mouse click
2) table must be strong enough to carry heavy speakers (min 50kg)
3) it must be DIY
and added some more
4) should be able to communicate with ARTA (to realize 1))
5) easy to build, even for people without electronic skills
Thanks Wim (PIC Software), Dougie (USB Controller) and last but not least Ivo (additional ARTA turntable feature with data export) the turntable project is now finished.
The turntable has passed the first test in the lab with good results (fig 1: turntable with heavy load (60Kg))
A 360° measurement with 5° resolution will last roundabout 300 seconds (inclusive export of frd-files). The accuracy and the reproducibility are sufficient. Deviation from target angle is < +/- 0.5 degrees (fig 2: reproducibility).
The concept of the turntable is very simple
(fig 3: turntable, drawing).
What is needed:
Some more details could be found in the following papers (sorry, at the moment just in german language).
Kind Regards
Heinrich
We picked up Wim’s design goals
1) make a complete polar measurement with 1 mouse click
2) table must be strong enough to carry heavy speakers (min 50kg)
3) it must be DIY
and added some more
4) should be able to communicate with ARTA (to realize 1))
5) easy to build, even for people without electronic skills
Thanks Wim (PIC Software), Dougie (USB Controller) and last but not least Ivo (additional ARTA turntable feature with data export) the turntable project is now finished.
The turntable has passed the first test in the lab with good results (fig 1: turntable with heavy load (60Kg))
A 360° measurement with 5° resolution will last roundabout 300 seconds (inclusive export of frd-files). The accuracy and the reproducibility are sufficient. Deviation from target angle is < +/- 0.5 degrees (fig 2: reproducibility).
The concept of the turntable is very simple
(fig 3: turntable, drawing).
What is needed:
- ball bearing with gear rim >>> Drehkranz Alu-Druckguss 330 mm verzinkt | Alu-Druckguss | Drehkränze | Hefter Fertigungstechnik
- pinion >>> Artikel 21801100 - Stirnzahnrad aus Stahl mit Nabe Modul 1,5 11 Zähne Zahnbreite 15mm Außendurchmesser 19,5mm
- motor with Encoder >>> https://nodna.de/Metal-Gearmotor-12VDC-with-64-CPR-Encoder-80rpm-6mm-Axis or https://nodna.de/Gear-Motor-12V-84Kg-cm-28rpm-139-1-with-encoder
- USB controller ARTA Turntable
- 4 pieces of 18 mm multiplex Wood
- Various small parts (screws etc.)
Some more details could be found in the following papers (sorry, at the moment just in german language).
Kind Regards
Heinrich
Attachments
![RAR20[1].jpg](/community/data/attachments/518/518713-2f7cd8c6d9d50d264cc0304caf857fa3.jpg)
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.. some additional pictures:
1) Turntable, small
2) ARTA turntable Menu
3) Turntable small + jig for horizontal measurement
4) Menu turntable, manual operation without ARTA
5) Menu, parameters for Operation
6) Turntable with heavy loudspeaker
7) Parts needed
More Information here: ARTA Turntable
Perfect tool in combination with VirtuixCAD: Software
Regards
Heinrich
1) Turntable, small
2) ARTA turntable Menu
3) Turntable small + jig for horizontal measurement
4) Menu turntable, manual operation without ARTA
5) Menu, parameters for Operation
6) Turntable with heavy loudspeaker
7) Parts needed
More Information here: ARTA Turntable
Perfect tool in combination with VirtuixCAD: Software
Regards
Heinrich
Attachments
Youtube ARTA Turntable
... here you will find some more information about the turntable:
https://www.youtube.com/watch?v=FWQudBXWUZs
Regards
Heinrich
... here you will find some more information about the turntable:
https://www.youtube.com/watch?v=FWQudBXWUZs
Regards
Heinrich
This is a long shot - I'm developing my own rotating turntable for ARTA using an Arduino interface. I chose arduino because it can easily control stepper motors and other sensors needed for homing.
I was wondering if you could let me know how you got ARTA to talk to the turntable? I see that ARTA asks for an .exe for a program which drives the turntable, but how would I make a program which ARTA can use?
I am producing this turntable in the hopes that others find it useful. I am designing it to use off-the-shelf hardware, and the wooden components will be shared as 3D files enabling anyone to get them cut on a CNC.
I was wondering if you could let me know how you got ARTA to talk to the turntable? I see that ARTA asks for an .exe for a program which drives the turntable, but how would I make a program which ARTA can use?
I am producing this turntable in the hopes that others find it useful. I am designing it to use off-the-shelf hardware, and the wooden components will be shared as 3D files enabling anyone to get them cut on a CNC.
This is a typical case of RTFM: http://www.artalabs.hr/download/arta-user-manual.pdf see page 23. You’ll just need to hack an executable that can communicate with your arduino to instruct the table what to do
Sometimes it can really be that easy
Interesting that this topic popped back up, since I might actually have an interest/use in doing something like this. It seems like it could be 'fairly straightforward' to adapt cheap 3d printer / cnc control boards and stepper motors to do something like this. The code to send gcode over usb should be possible to separate out from something like UGS.
I guess you have to evaluate the time needed to set something like this up vs the time to make the manual measurements the X times you'll actually need to do it.
I guess you have to evaluate the time needed to set something like this up vs the time to make the manual measurements the X times you'll actually need to do it.
..... this Motor should work: Pololu - 150:1 Metal Gearmotor 37Dx73L mm 12V with 64 CPR Encoder (Helical Pinion)
…. and here the pinion: Stirnzahnrader aus Stahl, Modul 1,5 | MADLER Webshop
Regards
Heinrich
…. and here the pinion: Stirnzahnrader aus Stahl, Modul 1,5 | MADLER Webshop
Regards
Heinrich
For the motor, does the 67 RPM of the one you suggested vs. the original Phidgets 28 RPM motor matter? Will the platter spin too fast or does the controller control the speed?
Thank you,
David.
I am having great difficulty finding the slewing ring and gear.
Would this ring work?
Gedotec Schwerlast-Drehbeschlag 360deg Drehscheibe drehbar O 320 mm | Drehteller Stahl silber | Druckkugellager Tragkraft 300 kg | Dreh-Ring zum Schrauben fur Mobel - TV uvm. | 1 Stuck - Drehkranz Kuche: Amazon.de: Baumarkt
At least these guys will ship to Canada.
The Häfele in not availible in North America.
Any thoughts on a gear?
Would this ring work?
Gedotec Schwerlast-Drehbeschlag 360deg Drehscheibe drehbar O 320 mm | Drehteller Stahl silber | Druckkugellager Tragkraft 300 kg | Dreh-Ring zum Schrauben fur Mobel - TV uvm. | 1 Stuck - Drehkranz Kuche: Amazon.de: Baumarkt
At least these guys will ship to Canada.
The Häfele in not availible in North America.
Any thoughts on a gear?