The SimFeedback-AC DIY Motion Simulator thread

Hey guys. Thought I’d create a thread for those taking the plunge into this brilliant DIY project..
I will be starting mine soon and I know there are others thinking about it.. so feel free to share your knowledge and experiences so we can all enjoy this platform to its full potential. A huge thanks to the developers who have really knocked this one out of the park!

Website: https://opensfx.com/2019/02/20/welcome-to-our-new-site/

Github: https://github.com/SimFeedback/SimFeedback-AC-Servo/wiki

For all the internals for the actuator contact Amy - skye@ntl-bearing.com
She can supply everything you need. Just remind her you want the ends of the shafts chamfered and make sure she sends the right sized ball screw - we have had a couple of issues reported. She is very helpful though and the cost is pretty good.


Huge thanks to @RowanH for writing a comprehensive user guide which can be accessed here - https://www.rowanhick.com/sfx-100-build-and-running-guide

In addition, @anton_Chez has contributed a list of post numbers for some of the important settings etc..
Post #320 SFX-100 thread
Post #327 SFX-100 thread for Discord correlation
Post #339 SFX-100 thread
Post #418 SFX-100 thread
Post #424 SFX-100 thread
Post #439 SFX-100 thread
Post #449 SFX-100 thread
Post #517 SFX-100 thread
Post #554 SFX-100 thread
Post #580 SFX-100 thread
Post #826 SFX-100 thread
Post #837 SFX-100 thread
Post #864,866,867,868,870,887,889,897 SFX-100 thread
Post #911,914 SFX-100 thread
Post #988,992,998 SFX-100 thread
Post #1147 SFX-100 thread
Post #1492 SFX-100 thread
Post #1511,1517 SFX-100 thread

I will try to keep this page updated with links to source the parts in other parts of the world. Just post whatever links you have and i'll add them here.

Please note: Not all the parts listed below are essential for the project. For the essential parts refer to the original shopping list.

Australia:

Thanks to @AussieSim for the following links:

10A power lead(s) * 4
https://www.jaycar.com.au/2m-black-mains-extension-lead/p/PS4152

Top quality wire stripper
https://sydneytools.com.au/product/boxo-cutws205-multifunction-wire-stripper

RCD/safety switch power block
https://www.bunnings.com.au/arlec-4-outlet-heavy-duty-portable-safety-switch_p4420028

WD-40 lithium grease for the ball screws
https://www.bunnings.com.au/wd-40-specialist-300g-high-performance-white-lithium-grease_p6100408

Vibration pads
https://www.bunnings.com.au/whites-on-site-100-x-12-5mm-rubber-anti-vibration-mat-4-pack_p3961547

WD-40 Dry PTFE spray for the slider (free shipping)
https://au.rs-online.com/mobile/p/lubricants/7577134/

Arduino Leonardo (free shipping + frequent 10-15% off discount)
https://www.arrow.com/en/products/a000057/arduino-corporation

DB25 cables * 4 (free shipping)
https://www.arrow.com/en/products/ak401-2/assmann-wsw-components-inc

PETG * 3 (free shipping)
https://www.arrow.com/en/products/petg17bk1/mg-chemicals

WAGO-like connectors to avoid a breadboard (perhaps use genuine ones if you are doing 240V AC)
https://www.aliexpress.com/item/32906719488.html

D-Sub breakout boards * 4
https://www.aliexpress.com/item/32297675967.html

3D printer Creality Ender-3 Pro
https://www.aliexpress.com/item/32918302452.html

Wires from Arduino to D-Sub breakout (remove black plastic from the WAGO end)
https://www.aliexpress.com/item/32887680826.html

Crimp connectors for AC wire leads
https://www.aliexpress.com/item/32813550981.html
 
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I'm having difficulty with printing the sliders. At 100% they're too large for the aluminium profile. At 98% too small. At 99% they're perfect but the bearing doesn't fit into its hole. I'm using someone elses printer and have no knowledge or ability to change these files. I'm paying for printer time and filament.

Is anyone able to provide an STL for the slider that is at 99% total outer size but with all the other holes for building and fixing together not changed from the 100% version. Thanks
 
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I'm having difficulty with printing the sliders. At 100% they're too large for the aluminium profile. At 98% too small. At 99% they're perfect but the bearing doesn't fit into its hole. I'm using someone elses printer and have no knowledge or ability to change these files. I'm paying for printer time and filament.

Is anyone able to provide an STL for the slider that is at 99% total outer size but with all the other holes for building and fixing together not changed from the 100% version. Thanks


I would hope your not scaling the XYZ to make up this "98 99 100" test you've done.

 
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I would hope your not scaling the XYZ to make up this "98 99 100" test you've done.


As I mentioned I'm not printing myself so I have no idea on this.

I'll take to sanding down the sliders I've already had produced... :(
 
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Hi guys I want to extend the power and control cable
Where would be the best to join

Would it be best to just get new cables and redo from motor to plug

I don't fancy soldering the 15 core cables to the motor as there would be a large margin for error on my part

The power cable seems a doodle as it's only four core

I've looked all over for the same connectors to just make a set of extensions but can't find any
 
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Well here is my small contribution to the SFX100
A printable bumpstop.. Using eSUN eLASTIC filament (85 Shore A Hardness)
Choose between square or rounded top

Cura print settings (on my Sidewinder X1)
50mm Print speed
25% infill (play with this to make more or less spongey)
1 Wall Line Count
Top Layers 3
Bottom Layers 4
Top/Bottom thickness 0.8mm

 
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I have a Zotrax printer so it doesn't give me a massive amount of adjustable parameters. Guess it just knows what to do :/

Make sure you print the parts according the specifications on the wiki otherwise you might risk parts braking under heavy motion.

The number of perimeters is the thickness of the walls.

 
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Make sure you print the parts according the specifications on the wiki otherwise you might risk parts braking under heavy motion.

The number of perimeters is the thickness of the walls.


Unfortunately its not as easy as that with Zortrax / Z-suite. because half the settings provided for the SFX cannot be set or adjusted in Z-suite. It 'takes case' of a lot of the settings for you....

There are a few people on here that have said they have printed the parts with Zortrax and I have messaged them all to get settings but no one has replied unfortunately.

Im printing at 30% infill and using Z-Ultrat filament which is super strong. https://zortrax.com/filaments/z-ultrat/

So fingers crossed.
 
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Hi guys I want to extend the power and control cable
Where would be the best to join

Would it be best to just get new cables and redo from motor to plug

I don't fancy soldering the 15 core cables to the motor as there would be a large margin for error on my part

The power cable seems a doodle as it's only four core

I've looked all over for the same connectors to just make a set of extensions but can't find any

Did you manage to find these?
Looking as well.
 
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Came across this today, presume it’s not a requirement?


It replaces the arduino in the original build. It allows you to use different software than SimFeedback, mainly SimTools, but also some other pieces of software if you prefer. You should look into it, SimTools has different features than SimFeedback.
 
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Two questions regarding lubrication:

1. Should one lube between the 3D printed slider and the extrusion?

2. What lube should be used between the hollow linear shaft and linear bearing?

1. PTFE spray lube on the sliders..
2. Use the same grease that you use on the Ballscrew on the Linear bearing..
Don't be afraid to fingerbang that bad boy deep.. get those balls nice and lubed

:)
 
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