DIY Linear Actuator design

hi @mariano68 been waiting for parts and bank balance recovery 4 of my 6 Actuators are done bar some minor tweaks , as of my last round of testing I'd have to say these Parvalux PM90 motors are Great and subject to aggressive testing , already indicate that they will do the job for my design , Only a couple more 1605 Ballscrew sets required and All Actuator will be Finally assembled then it will be SMC Mode 3 ( For DE Sabertooth controller ) for Individual actuator set up and load testing before fitting to the 6DOF frame ( still debating Wood Vs Metal ) metal obviously more robust but Wood allows me to tweak ( correct my errors ) easier .

Thanks for the update.
I was looking at your videos in youtube, you had a 6dof almost ready last year, lever style, why did you decided to go actuators way?.

These actuators are looking really good, a little loud but still really good. Great work. I'll be following this with interest. I just know that once my gseat is finished I'll be wanting to mount it on a 6dof. Could you give a cost breakdown per actuator? Those parvalux motors look to be about £40 or have I the wrong ones?

Great work! a heck of a lot cheaper than 6 VFD's and ac motors/gearboxes!!

Hi Guys thanks for the encouragement, will start with decent update once the final few items arrive this should not be too long now, Hi @RiftFlyer I'll be the first to admit my actuators ...do sound loud, but I have an advantage over you guys LOL... Im actually 100% Deaf without my magic tech so noise is not an issue I just switch off my Bionic ear as I call it and a Thunder clap or cannon going off right next to me would not get any attention from me ROFL its all down to vibration with me once the hearing aid is switched off...

Mind you with my Cochlear implant hearing aid activated, then yep I can definetly hear that one is noisy so will have a decibel meter handy when all 6 are going full tilt , just so I don't annoy the guys next door Cheers Guys Update and testing video will come once the basic test frame is made , by the Way the Other sim project was on hold due to self inflicted controller problems and would not take a lot to get it up and running but the linear actuator option is top of the agenda as im repurposing some of the elements of that sim ..

Awesome work @wannabeaflyer2 , dunno how I completely missed this thread ??

Hi Guys a trickle of updates , still awaiting the last 2 1605 x 500 ballscrew units then that will be all 6 sorted , have attached a couple of pics ref the new Base and Temp upper Platform ( for testing Movement use only ) with any luck I should be able to start mounting the Built actuators this week sometime

opps Almost forgot , i'll place the new updated CAD drawing PDF tomorrow at the start of this thread and allocate a version number so that you guys can see the Latest Details ( Proviso being This is my mad design and so designed around tools and equipment I have access to ) feel free guys to modify change and improve accordingly but share with others here on this forum ..cheers

That's great man! Keep up the good work!
That actuators looks freaking powerful!

Hi Guys as Promised here are the latest Drawing for my Actuator mad rush here at work but have fun and feel free to comment

Still need to do some/lot of fine tuning ref the base and Actual final Chair mount but the bones of the concept are there so thought i'd post what I have so far .

Great work! good motor choice also.

Hi @adgun been awhile since we swapped ideas about making these units for diy, tech got cheaper so what was once very very expensive is now getting close to affordable (still expensive but worth it ) for us diy wannabes ... the main thing is how did we survive before EBAY lol... a lot of the times its right place right time massive savings .. motor were less than £27.00 each .. got 8 if thats not a bargin I dont know what is

Hiya matey, I just bought 6 of the same motors as you for £15 each ?!?!?!?! made an offer on Ebay and they accepted

I am going to start getting all the other bits as and when I can.

Is it possible for you to share your 3D printing files too ?

Yes ebay is youre friend.The motors are still sold on ebay, great find they are 0,7nm cont.
With a little luck you could do without gassprings

BNIB Parvalux PM 90 Electric Motor -
12V 4000 RPM
Description:

• BNIB
• 12V DC Permanent Magnet Brushed Motor
• Manufactured in the UK by Parvalux
• Huge Torque (> 2NM) - Suitable for many applications (e.g. Small electric vehicles, conveyors, machinery etc.)
• Rated at 270W and 4000 RPM (no load)
• Stepped shaft; suitable for gearbox applications

motor sheet from parvalux

Hi Guys Been putting together the control box as always Rough n ready but all elements are in place Final version will be better laid out , but getting to the point soon where the last 2 actuators will be mounted on the base,, Ding Ding Round er ......Lost count but still battling away

Hi @SilentChill hey mate sorry I missed your earlier post regarding the 3D files ..Of course I can send them to you of post them here , will dig them out and publish them .. cheers mate and congrats on the next development ...great stuff

Are these the poly bearings you got ?

EDIT: Ignore as I see you put the spec on your design

Hi @SilentChill I did a crafty and asked them to send Samples and to my amazement they sent the 6 I needed So that was a Result as they say