Newbie questions on scaling down inmoov.

[Lady Wu]

Hello, I just got my first 3D printer and would like to begin building a modified inmoov. I would like to build an inmoov that is slightly smaller and start with just a head/neck with a support stand. What types of problems may I run into by modifying it to be smaller? I was thinking around 60% size. I recently went back to school to earn my degree in computer science and would like to be focusing more on the programming end of things and need just the head for human-robot interaction. Any advice or suggestions welcome. Thank you.

[bryan palleschi]

Hi!  I've printed smaller versions numerous times.  Here's some of the problems you will have.  I had abandoned a smaller version of the head.  I've attached a photo of the forearm that did work at 60% size vs full size.

The servos won't fit.  You can Dremmel them out for slightly smaller, but the screws will cease to line up.  I've printed a bit thicker (60%) and used a drill with a small bit and screws #385586 & #385584 (find them at Ace, Home Depot, Loews) and make sure when drilling - go slow and take breaks.  It's necessary to not melt the part which will make the screws not fit.  I was successful printing 60% scale and using servos DS929HV on the forearm, but the head was really hard since I couldn't find servos small enough with the right specs.

The speakers are not too much of an issue.  So long as you measure the diameter of the holes, the Internet is filled with them.

The Hercules camera won't fit.  I didn't want to spend anymore money so I stopped on the head at a lower size.

With your talent in programming, you may want to consider using the XBox 360 Kinect too.  I'm working on it, but I'm not a decent programmer.  I was happy to get it in the body for now.  Maybe you can just use a makeshift shelf to put that on your desk and prop the head up a little higher to play.  I'm sure that will be a lot of fun for you.

Good Luck!

-Bryan

On Sat, Feb 20, 2016 at 12:00 PM, Lady Wu <wubo...@gmail.com> wrote:

Hello, I just got my first 3D printer and would like to begin building a modified inmoov. I would like to build an inmoov that is slightly smaller and start with just a head/neck with a support stand. What types of problems may I run into by modifying it to be smaller? I was thinking around 60% size. I recently went back to school to earn my degree in computer science and would like to be focusing more on the programming end of things and need just the head for human-robot interaction. Any advice or suggestions welcome. Thank you.

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[Lady Wu]

Thanks for the quick reply and advice! I was hoping to save time and a bit of money by downsizing the size, but it sounds as if I may want to keep it at original size. The hardware and electronics is where my biggest learning curve will be. i am going to print my first part today. Are the .stl files on thingiverse the most recent? Or the files on the inmoov site?

My husband and I managed to pick up a Monoprice maker architect printer for just $299 and it is an excellent printer with a good size. If anyone is looking for a good price on a 3D printer I highly recommend it. It works well with pretty much any free 3D printing software I have tried.

[gael langevin]

I have been working on making a smaller InMoov called MinMoov. (trademark)

Parts are scaled down to 64% but I had to redesign a lot of mecanism to fit the smaller servos. Mainly because the servo shafts are not at the same place then the big HS805bb. And pots remain big...

But the result is nice. I haven't worked on the head yet which I plan to make a little bigger than 64 %. It will require a lot of re-designing.

Gael Langevin

Creator of InMoov

InMoov Robot

@inmoov

2016-02-20 19:50 GMT+01:00 Lady Wu <wubo...@gmail.com>:

Thanks for the quick reply and advice! I was hoping to save time and a bit of money by downsizing the size, but it sounds as if I may want to keep it at original size. The hardware and electronics is where my biggest learning curve will be. i am going to print my first part today. Are the .stl files on thingiverse the most recent? Or the files on the inmoov site?

My husband and I managed to pick up a Monoprice maker architect printer for just $299 and it is an excellent printer with a good size. If anyone is looking for a good price on a 3D printer I highly recommend it. It works well with pretty much any free 3D printing software I have tried.

[Lady Wu]

I look forward to seeing the design for MinMoov when it is ready. I registered on the inmoov.fr site today, started printing the first part and even set up a blog to keep track of the progress. Thank you very much for this. 

[FranksCell Onlymine6969]

On Saturday, February 20, 2016 at 12:00:35 PM UTC-5, Veleda Veleda wrote:
> Hello, I just got my first 3D printer and would like to begin building a modified inmoov. I would like to build an inmoov that is slightly smaller and start with just a head/neck with a support stand. What types of problems may I run into by modifying it to be smaller? I was thinking around 60% size. I recently went back to school to earn my degree in computer science and would like to be focusing more on the programming end of things and need just the head for human-robot interaction. Any advice or suggestions welcome. Thank you.

I've been working on a 50% version to use as a working display model to go along with my full size inmoov. With legs that will make him 35" tall. I have found servos for everything except the eyes but am building custom proportioal actuators. I haven't found a webcam to fit, but have a electronics friend that has agreed to build one for me. The arduinos will be inside a custom built backpack. More to come... It can be done, but great care must be taken if it is to be functional rather than for static display. Some parts/electronics will have to be custom built. Good luck.

[gael langevin]

Very nice to see it at 50%, it looks very cute! Even more cute than 64%.

I designed a new hand which will be able to use 9gr servos set in the forarm.

Need still a bit of design for the thumb mecanism.

Gael Langevin

Creator of InMoov

InMoov Robot

@inmoov

2017-06-06 5:03 GMT+02:00 FranksCell Onlymine6969 <franksc...@gmail.com>:

On Saturday, February 20, 2016 at 7:26:23 PM UTC-5, Veleda Veleda wrote:
> I look forward to seeing the design for MinMoov when it is ready. I registered on the inmoov.fr site today, started printing the first part and even set up a blog to keep track of the progress. Thank you very much for this. 
>
> On Saturday, February 20, 2016 at 7:07:01 PM UTC-5, gael langevin wrote:
>
>
> I have been working on making a smaller InMoov called MinMoov. (trademark)
> Parts are scaled down to 64% but I had to redesign a lot of mecanism to fit the smaller servos. Mainly because the servo shafts are not at the same place then the big HS805bb. And pots remain big...
> But the result is nice. I haven't worked on the head yet which I plan to make a little bigger than 64 %. It will require a lot of re-designing.
>
>
>
>
>
>
>
>
>
>
> Gael Langevin
> Creator of InMoov
> InMoov Robot
> @inmoov
>
>
>
>
>
>
>
>

> 2016-02-20 19:50 GMT+01:00 Lady Wu <wubo...@gmail.com>:
> Thanks for the quick reply and advice! I was hoping to save time and a bit of money by downsizing the size, but it sounds as if I may want to keep it at original size. The hardware and electronics is where my biggest learning curve will be. i am going to print my first part today. Are the .stl files on thingiverse the most recent? Or the files on the inmoov site?
>
>
>
> My husband and I managed to pick up a Monoprice maker architect printer for just $299 and it is an excellent printer with a good size. If anyone is looking for a good price on a 3D printer I highly recommend it. It works well with pretty much any free 3D printing software I have tried.
>
>
>
>
>
> --
>
> You received this message because you are subscribed to the Google Groups "InMoov" group.
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> To unsubscribe from this group and stop receiving emails from it, send an email to inmoov+un...@googlegroups.com.
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[dux dynabot]

i am really happy to reach one who worked on this design scale which i really understand it need alot of work to reach the proper design matches with servos and mechanism.

i wonder if you get the full design of 60% scale .

and what about the stl files of this scale availability on sharing 

[gael langevin]

Hello,

You can find what I worked on so far here:

http://inmoov.fr/wp-content/uploads/stl/MinMoov/MinMoov.zip

and for the hand, I designed a second model, which is a bit different:

https://inmoov.fr/wp-content/uploads/stl/MinMoovHand/MinMoovHand.zip

Note: I haven't done any instructions for these parts, so you can follow the normal size instructions which should be totally fine to understand the basics.

I also need to mention that I haven't worked on reducing  the head, stomach and legs.

[gael langevin]

https://inmoov.fr/minmoov-64-reduced/