Post by wannabeaflyer on Sept 14, 2017 19:59:43 GMT
I have a6DOF motion simulator using my DIY linear actuators , was reading through some updates on the Motionsimblogspot website and came across this
" The linear servomotors on the photo below come with a 12-bit DAC that captures the encoder pulses and converts them to analog 0-5v output to easy interface them on the AMC1280USB as you would do to a potentiometer solution sensor. It involves a little automation for the encoders calibration, with a contactless limit switch for home position during power up, but after that its completely relying on the internal encoders for the position control."
I would really like to replace my Multi turn wire wound pots with 600PP/R optical encoders and saw the mention of a 12 Bit DAC 0-5V output mentioned in the same section ..
is there any info as to the make of the DAC ( looks like Arduino Nano in the picture) shown . are there any examples of this being used for servo motors (mine is ballscrew assembly driven by DC Motor with currently Multiturn Pot for position feedbac..
this works great with my AMC with the Pot signal going to the AMC Digital Expansion Card . but not sure how I would change these for optical encoders and DAC which would feed into the same digital Card .. or how I would go about initialising the homing process ..
any help or pointing me in the right direction with a link would be great . thanks Guys
Post by wannabeaflyer on Sept 16, 2017 14:57:36 GMT
Hi Thanos this would be a great upgrade and allow even more interfacing possibilities . will be watching this like a hawk because thanks to your great controller and my DIY linear actuator there is interest in doing this by the common DIY wannabees out there ..
Im currently re-assembling my 6DOF motion platform and this would be the icing on the cake ..I will have both options one controller using the BFF software and and One with the new Kickstarter Basic card for Simtools Maybe..
I was/Am very happy with my current AMC128USB setup running with BFF but the 10Turn 10k Pots seem to ne the weak link and would love to use optical encoders even if I have to use a homing routine 1st before running any simulation ( I did that with my dimension engineering Kangaroo setup and it was not an issue ..
would the homing function be built into the AMC firmware?
Just wanted to say thanks for getting back to me with this great news , I know your very busy with the kick starter project so will wait my turn LOL :-) YOUR A STAR SIR
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