6DOF linear actuators almost done!

hello there! the inpiration for this build is from the @Peacemaker105 actuators design, it's been a long since my first build, a 2DOF + traction loss with wheelchair motors and it's been working perfectly since then, but always wanted to build a 6DOF with linear actuators, there's plenty of good projects out there but this design is what i like the most, I changed some aspects of the design in part because in my country are different materials and others are impossible to find.
the motors are the 80STM024030 wich I bought from Aliexpress


I'm using a PVC water pipe 100mm OD and 90mm ID wich I had to rectify because the vendor could not cut it with presition :/ one of the differences in this design is the coupler from the carbon fiber tube with the nut of the ballscrew wich I've done in aluminum and is bolted to the nut

https://www.facebook.com/video.php?v=891795292236950

here is the U joint fully made with PLA high density infill

couldn't find any tube strong enough to handle the weight between the motor spacer and the base of the U-joint so I made that too with my 3D printer with horinzontal orintation an 100% infill are very solid!


first set only for the 6 actuators

https://www.facebook.com/video.php?v=776818084254274

I wanted to make the platform with round tube because of the visual attractive and elegant design

cut the pipe in sections and bent it to the correspondent angles

this is a 2" tube and with pieces of 1 3/4 refrigeration tubes I inser them in to the 2" for assemble the platform that way I could mesure the exact distances before welding and also the unions could be a lot stronger

for the fixing point to the actuators I design a part to be 3D printed wich result to be too big for tghe pinting bed so came up with the solution of making it in two parts and then joint tghem with sections of 2" tubes

https://www.facebook.com/video.php?v=697053975541877

https://www.facebook.com/video.php?v=1558987644937887

also, is less plastic to spend

this is the pre assembled structure before welding




and fully welded

the holes for the U-joint are drilled directly to the base tube

I designed the pedals so it can be adjusted with the push of a button using a little motor reductor and a ballscreew with the pedals mounted on top of two linear rails

https://www.facebook.com/video.php?v=1449463912302700

I will post later the details of the adjustable pedals system, and the parts I made in Solid works

every step of the project has ben a real chalenge with the limitation of the materials in the local market, nobody in my town knos what a filtro EMI is so almost everything is imported from USA and China

for the monitor mount I'm using a 2.2" 2mm thinckness so is very ligh and strong enough

https://www.facebook.com/video.php?v=3578987335706794

throtle fligh control and retractable mount system, and yes, more 3D printing! very solid, no wiggle and very firm!!

https://www.facebook.com/video.php?v=1309261219747564

more 3D printed arts, and aluminum square tube for the shifter stick

my rig is not yet complete, some minor details but I could be able to run some tests since theres much about the way a 6DOF works I didn't know, I was recomended to use the new beta version V3 so I installed it, at first it was a little confusing specially the way it has to be installed all the componets like the interface plugin and motion plugins, but is a lot easier anyways, after set up the axis assignments the same way I had them in V2.6 I wanted to run the DOF test, and almost destroy the simulator, the movement was so miolent and took me by sorprise! I don't know why because it moves a lot different in the previous version, I had to lower the intensity to 10% that can't be right! imagine what would happen at 100% , still at 10% the movement is way too strong so, I really need some help to see what I'm I doing wrong because I want to use the new version 3

here is a test with LFS at 10% intensity and simmtools V3

https://dai.ly/x8qv6aa

my settings



here is a test with the version 2.6 at 60% intensity!
https://dai.ly/k3huViOtiYuuUTzN13H

my settings are the same

Wow, do you use the high density PLA for the final rig, does it really support the load on such a rig ?

yes, I know it sounds that it should be steel but I design designed and printed the parts in such way that can handle the stress of the forces they receive. but I'm testing it anyways to make sure it won't brake in any way