D-Box - movement when using

[JWasher]

Hi All,

I'm designing/building a rig with D-Box 4250i actuators and some other peripherals, and I am trying to understand how much movement/walking I should expect with this system using the non captive cups so as to avoid clashes between parts on the motion bed, and parts that are not.

Ideally, I would like to isolate the cups that the actuator feet sit in, so as the rig can only move about the 4 pivot points, but is it possible for the rig to 'jump the cups'?

I see there is a captive foot mentioned, but I cant seem to find it for sale, and does it require any movement through the pitch/roll effects?

The system comes with some ~95x95mm restraint boxes with a 10mm lip, but ideally I'd like to work within a tighter tolerance than that if at all possible.

Does anyone have experience of the actuators jumping out of the white plastic cups?

 

[SigmaMotion]

Never will the rig jump out of the cups. The algorithm doesn't allow for it.

 

[NetLawMan]

First, congrats on picking that system. It’s amazing. You can see my other posts here for my thoughts.

If your floor is level and you don’t have an ultra polished slippery floor, it should move very little, if at all. Those metal square cups are quite sticky. Mine has periodic slight movement, but that is because my floor is so un-level (1/2of an inch difference in floor height under rear left and right actuator), that I need different thicknesses of cork under each actuator to keep everything level. Even then, movement is very little (1/2” ) and only once in a while.

 

[JWasher]

Thank you both for your replies! I am looking forward to getting the system up and running, I’m just waiting for the remainder of the parts to be machined.

 

[NetLawMan]

Thank you both for your replies! I am looking forward to getting the system up and running, I’m just waiting for the remainder of the parts to be machined.

How did it turn out?

 

[JWasher]

Not yet, it’s progressing slowly as I have a pretty demanding job that leaves me very rarely at home/in the country.

It’s going to be a special build for sure and I’ll share it when it’s done.

Hopefully lots of interesting concepts.

 

[dean g]

First, congrats on picking that system. It’s amazing. You can see my other posts here for my thoughts.

If your floor is level and you don’t have an ultra polished slippery floor, it should move very little, if at all. Those metal square cups are quite sticky. Mine has periodic slight movement, but that is because my floor is so un-level (1/2of an inch difference in floor height under rear left and right actuator), that I need different thicknesses of cork under each actuator to keep everything level. Even then, movement is very little (1/2” ) and only once in a while.

Hi so sorry to bring up and old thread but I’m about it to order the SFX Eraci g lab 4 actuator kit and my floor is also uneven would you be able to give me pictures/info on how you got around this please I’ve been on the internet for hours and your the first person I’ve heard with this issue.

 

[Tronicgr_6DOF]

Hi so sorry to bring up and old thread but I’m about it to order the SFX Eraci g lab 4 actuator kit and my floor is also uneven would you be able to give me pictures/info on how you got around this please I’ve been on the internet for hours and your the first person I’ve heard with this issue.

The latest firmware update for the eracing-lab actuators controller, actually allows custom initial home position of each actuator (backtrack) from 0mm to 2.5mm. So it can handle some slightly uneven floor conditions. Also allows silent power off on park, instead of clanking noise of the rig dropping to the actuator hard stops.

 

[dean g]

The latest firmware update for the eracing-lab actuators controller, actually allows custom initial home position of each actuator (backtrack) from 0mm to 2.5mm. So it can handle some slightly uneven floor conditions. Also allows silent power off on park, instead of clanking noise of the rig dropping to the actuator hard stops.

Thank you so much for this. Is there a video I could watch to learn how to do this? I did ask Alex/Simon at Eracing labs but they were not aware of anything.

It’s the Thanos4u package. Your device I believe

 

[Tronicgr_6DOF]

The latest Thanos4U firmware has preset for eracing-lab actuators that not only sets the correct stroke automatically, it also sets skipping of the standby and proper backtrack values. The power save off is activated by Simhub if selected to be used.