The SimFeedback-AC DIY Motion Simulator thread

sjb266 · Sep 17, 2018

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

Tronicgr_6DOF · Jan 17, 2020

_hagenaar said:
this a realy good start but i see unshielded cables and the most important thing is the shielding of the motor and the connections of the shield

If you are talking for the ribbon DB25 adapter cable, yes, probably will be covered with aluminum tape, but the rest of the wiring will be shielded.

C64 · Jan 17, 2020

@_hagenaar - I can't see the reduction to 90mm dia. causing the printed parts any problems, it just translates into a 10% increase in shear load where the motor mount meets the fixed bearing mount. The bolt fit is very snug in the motor mount holes so there is no movement between the parts.

hazardpro · Jan 17, 2020

So according to this i want to mount the front actuators just in front of the main upright.....

But the P1 pedal deck mount is in the way, moving it far enough forward will compromise my pedal position :/ Anyone else got this setup and if so how have they mounted it?

Steve D · Jan 17, 2020

@hazardpro I moved the brackets to the inside and then secured the profile on top of them using the usual corner brackets from underneath. I did cut the profile down later though so that each piece lined up with the outer edge of the bracket.

scornflake · Jan 17, 2020

@_hagenaar : a couple of questions if you don't mind.

1) you mention shielding the motor. Do you mean a grounded cage around the motor? Or do you mean shielding the motor power wiring, or both? I can understand shielding the wiring.

2) Re attaching both ends of the shield to ground, would you run individual grounding wires to each motor position? ground the entire rig?

hazardpro · Jan 17, 2020

Steve D said:
@hazardpro I moved the brackets to the inside and then secured the profile on top of them using the usual corner brackets from underneath. I did cut the profile down later though so that each piece lined up with the outer edge of the bracket.

nope you have lot me lol

How can you mount those brackets on the inside? Its impossible, due to the width of the pedal mount, they can only go on the outside?

Any pics?

hazardpro · Jan 17, 2020

hazardpro said:
nope you have lot me lol

How can you mount those brackets on the inside? Its impossible, due to the width of the pedal mount, they can only go on the outside?

Any pics?

AHH no.. I get you now and can actually see it in the rig pic I posted

ill give that a go tomorrow.

hazardpro · Jan 17, 2020

@scornflake thats your rig in the picture?

How are you finding the SFX system on the P1?

_hagenaar · Jan 17, 2020

scornflake said:
1) you mention shielding the motor. Do you mean a grounded cage around the motor? Or do you mean shielding the motor power wiring, or both? I can understand shielding the wiring.

I made a typo there but edited the post later. i mean only shielding the cable. as the motor is made from metal it is already a cage. the shield is not a protective conductor but only to make a path for the high frequency signals (that cause EMI) to flow back to the source (the drive). where it should be connected to the metal housing of the drive which is connected to ground/earth

scornflake said:
2) Re attaching both ends of the shield to ground, would you run individual grounding wires to each motor position? ground the entire rig?

Grounding with the green and yellow wire (Protective Earth) is only for safety. to make sure you don't get a shock

hazardpro · Jan 18, 2020

Just read a load of stuff about wining noise from the SFX rig? Is everyone having this issue?

Obizues · Jan 18, 2020

Can someone help me out with what parts of the build does the shield-100 replace?

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...

www.racedepartment.com

Megahowler · Jan 18, 2020

hazardpro said:
Just read a load of stuff about wining noise from the SFX rig? Is everyone having this issue?

It affects people to different degrees... I have no issue with it.. But it's certainly audible

hazardpro · Jan 18, 2020

Megahowler said:
It affects people to different degrees... I have no issue with it.. But it's certainly audible

Is there a ‘fix’ for those that find it a problem?

hazardpro · Jan 18, 2020

Also keep seeing loads about shielding cables but (I’m trying to get through the 300 odd pages) I can’t seem to find why some are having to do this and some are not.

what is the issue exactly for those trying to shield and why are some people not having to?

thanks in advance guys.

Megahowler · Jan 18, 2020

hazardpro said:
Also keep seeing loads about shielding cables but (I’m trying to get through the 300 odd pages) I can’t seem to find why some are having to do this and some are not.

what is the issue exactly for those trying to shield and why are some people not having to?

thanks in advance guys.

I think the shielding is for EMI issues.. There is currently no solution for the 10khz whine

Lars Stjernstrøm · Jan 18, 2020

Just realized i got the 90ST-M02430, and not the 80ST-M02430, and pritty shure it’s too late to return them any idea on what to do?

C64 said:
@_hagenaar - I can't see the reduction to 90mm dia. causing the printed parts any problems, it just translates into a 10% increase in shear load where the motor mount meets the fixed bearing mount. The bolt fit is very snug in the motor mount holes so there is no movement between the parts.

_hagenaar · Jan 18, 2020

Lars Stjernstrøm said:
Just realized i got the 90ST-M02430, and not the 80ST-M02430, and pritty shure it’s too late to return them any idea on what to do?

the 90ST-M02430 is the one mentioned on the shoppinglist. so you are okay.
i am trying to se if can fit the 80ST-M02430

hazardpro said:
Also keep seeing loads about shielding cables but (I’m trying to get through the 300 odd pages) I can’t seem to find why some are having to do this and some are not.

what is the issue exactly for those trying to shield and why are some people not having to?

thanks in advance guys.

Shielding motor cables is indeed for EMI. It for example helps preventing ramdom usb problems and so.
EMI mutilates signals

hazardpro · Jan 18, 2020

Simfeedback won’t run??

Just installed simfeedback and following instructions in wiki

When I launch it I get sim feedback logo pop up that then goes.....and then nothing??

Any ideas?

running Windows 10 64bit
Windows firewall on
Windows anti virus on (tried off as well)

ThugUK · Jan 18, 2020

hazardpro said:
Simfeedback won’t run??

Just installed simfeedback and following instructions in wiki

When I launch it I get sim feedback logo pop up that then goes.....and then nothing??

Any ideas?

running Windows 10 64bit
Windows firewall on
Windows anti virus on (tried off as well)

Did you Run the script "remove_blocking.bat" by double clicking?