Showroom 4Dof upgradeable to 6Dof

What did the ballscrews cost each ?

They are Chinese, I got them a year or more ago, I don't remember but sure the same as the rest of the guys that got them there.

Returning to the project...
I had to put it on stand by because of the lack of space to put the simulator, as it has a footprint of about 170x110cm, So, I built a little external room for it in a lateral corridor of my home, it took two days with some help...
Not the neatest but big enough to put the computer and sim inside and have all the privacy I want, cause it is outside the house . I used all recycled materials from other jobs. It is 240x170cm. I got my " Man's cave" and I can keep building my new 4dof sim.

Finally got my first 3d printer!
Ender 3:


Time to learn fusion 360...

V2 of my linear actuator is coming...
First part printed with a 0.8 nozzle, (ball nut support) perfect fit!

Upper part ready too...

Can we see a video of the actuators working

What power and rpm are the winch motors ?

As you can read, it is still a work in progress...
Also two diff motors for testing, big 1hp winch and a smaller but already with encoder mounted servos.

Prototype actuator base, ready

I will put this here too...
Got an old friend to jump up into my project, he is doing the electronics now, already got the encoder (2000cpi) to work with arduino, but arduino and also the sabertooth will get out of the ecuation soon... I want my little 48v servo motor to work at that 48v!
For now:

Just quoting my friend Hernan:
In more technical terms, the pic receives the quadrature signal from the enconder, and generates a pwm proportional to the position, that is filtered and sent to the arduino as a 0 to 5V signal, as if it were a pot.
inside the pic you can count all the laps that are needed, so that the 0 to 5 V end up representing the number of laps multiplied by the resolution of the encoder, in our case it would be something like 70,000 positions.
But, in the arduino all that goes to the bin, it must have 10bit input, 1024 positions. So that is worse than reading my tester hahaha.

BTW, that red part, its the bottom of my new actuator design.

Any chance you were able to make progress on the build? I'm planning on making something similar.

Hi guys, coming back...

I can't see the pic

Thanks!
Long time! How do you do?
Let's go again!

I'm looking for a 48 or 60V motor driver, any clues?
Thanks anyway!