DIY Actuator Arduino UNO Based

Hi,

This is my first attempt build my version of actuator. Not yet final product, still need revisions I think.

It's 445mm length without the 'piston'.

All will be 3Dprinted except the mounting plates to the rig, will be Aluminum 6mm thick.
Using 1605 ballscrew with 40W motor and 1:12.5 gearbox (a bit too fast and low torque, but I will give some tests).

Let me know what do you think.

deeph

Well, I have finished my actuators and runs great.
BUT have issue while running a game, there is numb feeling that rig not moving a couple of seconds and back working.

Motor is 24V 40W and PSU is 24V 350w x 2 units (for rear and front). Using IBT-2 controllers. I measure it can take current at 5.4Amps per motor. Does this sign of not enough power from PSU?

I'm using 1:3 gearbox and motor itself is at 2000rpm. Output from gearbox roughly 666rpm. Also using 1605 ballscrews.
I did load testing with my body load 84kgs at the rig with 4 actuators installed. I feel it could handle it.

Ohh, and I noticed that one actuator not synchronize with others. After 1 game run, one actuator will shorter than others. Not much, the rig will wiggle in diagonal.

What ever tuning I did, still do the same. This is the screenshot of Min/Max Tuning in attachment.

EDIT:
What I did so far :
- Shorten all the cables to motors.
- Added ferrite to pot cables both ends.
- Seperate into 2 PSU, 2 motors each PSU.

I managed to solve the not syncing problem by changing the pulleys into gears. Now it's all good.
It looks like the pulley's belt slipping when in some condition.

Your project seems like a great idea to me, could you provide a little more information? Feedback always brings me doubt, greetings

Hi,

I added the STL files. Better to use PLA+ filaments.

The Alum Thrust Bearing Plate.obj and Mounting Alum Bottom.obj are the only one that needs to be machined.

GearboxSpacer Houle Motor.obj can be printed with 100% infill to get more strength.

To assembly the actuator, the first thing to do is installing the potentiometer on Main Body.obj. If you see 2 x 3mm holes on the other side of the potentiometer slot, it's for screwdriver comes in to be used to tighten the potentiometer screws.

The hardwares are :

1. Houle Motor 60W 24V (Model :5DC40W) (1 pc).
2. Houle Gearbox 1:3 (1 pc).
3. Slider Potentiometer 10KOhm 125mm length (1 pc).
4. 1605 Ballscrew 250mm length (1 set).
5. Coupler 10x12mm (1 pc).
6. 51101 Bearings (4 sets). If you delete the BearingSpacer.obj you can use 8 sets (ie. in 1 actuator will be using 1 set 51101 bearing BELOW Alum Thrust Bearing Plate.obj, it should be OK. But if you add 1 set more of 51101 bearing ABOVE Alum Thrust Bearing Plate.obj it will add more rigidity).
7. M6 x 100mm Flat Head screw (6 pcs).
8. M6 x 45mm Button Head screw (6 pcs).
9. M6 x 80mm Button Head screw (4 pcs). For motor and gearbox.
10. M3 x 10mm Machined Screw (6 pcs). For potentiometer lid.

Actually the build is straight forward but if you have problem let me know.

deeph