Hi I have recently built a 6DOF simulator which I am spirally upgrading. Have just acquired a AMC1280USB, which will run with Ian's BFF software and be fitted to the system once I complete building the interface cables. Video attached.
Post by wannabeaflyer on Jan 14, 2016 19:44:01 GMT
Hi Craig great to see you here , your going to love tronics AMC1280USB and linked with Ians Software . call it match made in heaven :-) i have the early version of the AMC1280usb controller but need to do the analog noise reduction update,this evenings task is to update the firmware to latest version so finger crossed, i already used it with my 6DOF rc servo model so all good stuff, Your actuator design may well set the standard for DIY guys and shows great potential, congratulations on the upgrade. watching your progress as always . Cheers
Last Edit: Jan 14, 2016 21:03:48 GMT by tronicgr: Corrected some spelling ;)
I have one actuator connected to the AMC1280USB and working well with Assetta Corsa and BFF software. Fabi's setup software made things easy, but the auto PID tune just did not work for me. Ended up tuning manually like I always do. The wiring changes for the end stop microswitches caused me although nothing but problems due to voltage drop. Its lucky I own a oscilloscope, or I would be still pulling my hair out.
System now fully up and running with the AMC1280USB and BFF software. It is so reactive in Dirt Rally that I had to tone it down to save my kidneys and no rally car is sprung that hard anyway - every stone can be felt, very impressed . Still coming to grips with the BFF settings, will post up a video soon.
Ohhhh Getting excited now at seeing your simulator working with the AMC controller setup, can I ask what motor drivers your using , are they still the MM's or have you upgraded to another type , do you have a block diagram showing the basic wiring connections or is the wiring based on the MD03 Sample photo for DC motor's , I'm still trying to find a clear cut wiring diagram for DC motor use as some info is not in the current AMC version of the manual . ,, Excellent work as always that man, and congrats on getting your system up and running , more options the better for this great AMC128USB controller, we may well see more Lightweight DC motor based systems thanks to the work You and Markus have done ..
Its working way better then I ever expected . Still using twin MMs for each motor, they work great once sorted and you cannot beat the price. Unfortunately as you know the reliability of them out of China is problematic. Luckily I have the background to replace the odd 'dead on arrival' driver chip. Don't have a wiring diagram worth showing, its just a standard three wire PWM circuit, but with limit switches in the direction lines as a fail safe for the actuators. For me it was always going to be a lightweight DC motor setup or nothing, as unfortunately I don't have the space/budget or available mains power for a AC system - Ie. the main fuse for my house is only single phase 100 amps ($$$ to upgrade if at all possible). Eg Using a Belklin power meter, my rig + computer etc, consumes 630 watts (2.6 amps) when operating with a passenger on board. I do although have it drawing from a 15 amp circuit as a precaution for expected surges.
Hi Carbon once again thanks for the info , the reason I asked is that im using Sabertooth controllers at the moment, so when you mentioned 3 wire PWM I was trying understand where the signal came from ref AMC or was fed to Ref MM's , i understand the limit switch function so just that bit concerning PWM INPUT the would help , I Found the info regarding using 2 or more MM's to increase current driving capacity so im almost there Understanding that part, can you post a sectional photo of the wiring similar to the one you already posted but showing the connections to the MM's , im Good at mechanical Work but need so help Connection wise for the DC option, im trying not to blowup my Expensive DC Controllers ( had too many close shaves so far and am now into pushing my luck territory LOL :-) Sabertooth stuff is robust but im the one factor they didn't bargin on ROFL.. Cheers
The 3 wire PWM comes from the PWM output of the AMC as shown in my picture above (the soldered side) - note that this is not quite the same anymore due to installing wiring to the Limit switches and changing cable size (but the connections to the AMC have not changed). Re MMs: they are wired the same as in a dual MM configuration, but unfortunately I cannot show you a picture as everything is mounted/bolted in place now with big CPU heat sinks over the MMs, so there not much to see.
Hi Carbon , Just to say thanks for answering my query , I saw some of the photos showing the Cooling fan so I understand you not being able to get clear shots of it now that it all assembled , no problems , just happy for any info, Going back to basics and will check out Ians BFF DE setup Schematic to see if the info I need is there, one last question and I wont bother you any more ( ok ok for at least 3 weeks to give you a break :-) )
6 Motors/Controllers 3 PWM inputs ? is that a typo or have I missed a bit regarding how PWM works for this setup.. I can see from the picture you posted the Area where the ribbon cable is soldered to, towards the bottom of the AMC ( these Connectors are in blocks of 3's and identified as out1,PWM,Out2) is that where the number 3 comes from?
With my newbie limited understanding does that in effect mean each of the 6 drivers has 3 inputs ( dir ,Speed Pwm , and ? )...
No rush , so answer when you get a chance , im eagerly awaiting my ball screw from china to experiment with my version of your actuator, so this is info gathering time so lots more reading required on my part ... cheers Craig
Damm I must learn to read the FAQ's section Properly
Q: Where I’m not crystal clear is about the extension board: What are the available output on the “AMC1280USB” itself (assuming 5V, and the extension board adds different output signals?
A: The AMC1280USB it self can drive 6x PWM signals for h-bridges (DC motors), or miniservos with the Pololu Microservo Serial controler attached on it. The 6DOF ext board is needed to create the Analog speed signals (0-10v) and Digital direction signals (0-24v) for VFD inverters(AC motors) or Servo drives(BLDC motors), but also creates analog speed 0-5v signals for some DC motor drives like the devantech or Sabertooth DC motor drives.
the answer is in there Craig I should have paid more attention so sorry to have asked you stupid questions good buddy ,it seems for my application I just need to select the right mode to talk to the Sabertooths , so fingers crossed
Anyways mega thanks for taking the time to provide the answers , its never wasted on me , just takes a while to sink in before the EUREKA light comes on in the Grey matter :-)
dureiken: Hi there, it's really quiet here someone could help me for my 6 dof project ? thanks a lot
Aug 8, 2017 15:34:46 GMT
tronicgr: dureiken Hi, Open a thread and I'll try my best to help. A little busy with Kickstarter details at the moment but I'll see what I can do.
Aug 12, 2017 11:57:42 GMT
dureiken74: I just did it
Aug 27, 2017 11:59:06 GMT
fimmy: How's the firmware going?
Sept 6, 2017 8:34:43 GMT
tronicgr: @fimmy I had to put it on hold to finalize the manufacturing of the new kickstarter controllers. I tested parts of it to ensure compliance with the new features and looks good so far. I'll get back to it soon for integration.
Sept 9, 2017 12:52:35 GMT
Theuns: Very nice design.I'm also busy with mine and changing it also to Linear Actuators with 220v Servo motors.I'm waiting for my new controllers from Thanos. If I may ask Do you have any Sketchup files of your design and willing to share it I Thanks Theuns
Sept 14, 2017 22:45:09 GMT
atayeu: Hey everyone! I'm reading up and gathering all of the intel I can find for my first motion platform. this is by far best information for creating one.
Oct 14, 2017 7:25:57 GMT
tmcnam: I must be crazy but I still can't find the blueprints to the platform by GA-Dawg. Any help would be appreciated. Thanks guys.
Mar 10, 2019 21:31:57 GMT
Trip Rodriguez: Sorry tmcnam, the shoutbox doesn't get much attention. Did you find the blueprints? They are at the VERY bottom of the extremely long first post. It says "attachments: 6DOF.zip
May 4, 2019 19:13:25 GMT
zivby: How much weight this setup can carry?
May 19, 2019 11:57:16 GMT