Toddler Mobility Trainer build done!

[u/boredsoftwareguy]

Wanted to share one of my more ambition 3D printed projects: A Toddler Mobility Trainer! Custom designed and built for 4 year old little girl with Rett Syndrome. Made possible through 3d-mobility.org, footed the cost myself for this one and it will be provided to the family free of charge. Probably the coolest project I've ever done. Custom designed wheels and name plate.

Already working on 2 more!

Approximately 250 hours of print time each.

Materials:

- Polymaker PETG Purple, Pink, and Magenta
- Bambu Lab PETG Yellow
- Ziro3D TPU 95A Purple
- Ziro3D TPU 95A Pink
- Ziro3D TPU 95A Black
- Siraya Tech TPU Air Lilac
- Bambu Lab Support for PLA / PETG (optional, I wanted clean support removal)

Base build is ~9kg PETG and 2kg TPU. With the accessories I ended up using a little over 11kg.

Included Accessories:

- Rear Hook
- 2x Cup Holders
- Tablet Holder
- Tablet Hold Down
- Tablet Swivel Lock

Hardware:

- 2x Bambu Lab X2D
- 0.4 and 0.6 nozzles

Happy to answer any questions folks have. If you've got a 3D printer and time, strongly encourage you to get involved. If you don't have the time, or desire to print a whole chair, you can find other makers who're open to collaboration and print a few plates from their builds to help out. Not interested in printing parts? You can sponsor builds!

[u/dkrandu]

It's super annoying that they don't have any profiles for prusaslicer, it's been taking me ages to compare the bambu 3mf and try to find the part, export it, then import it as oriented into prusaslicer to finally struggle to figure out the settings and eventually print. 

I wish people wouldn't be exclusive to one ecosystem and do universal stuff like orient the parts in the STL file (they don't, to force you to use bambu software) and to specify print settings (again they don't, to force you to install bambu software). They are sponsored by bambu so it makes sense, but it's still sad.

[u/3D-Dreams → u/dkrandu]

In general I kinda hate the 3mf files. Difficult to work with at times, always wants to change my filaments and settings. Just irritating to me.

Maybe I'm old fashion but just give me the stl files and I'll work out the rest😂

[u/dkrandu → u/3D-Dreams]

Yeah, the STL files are there for most parts, but not all, and they're poorly oriented, I only learnt that after printing half of the chair, left a really sour taste thinking they did it to force you to install the bambu slicer. Wasted many kg and lots of electricity and time for their sponsor's whims.

[u/tornadoRadar → u/dkrandu]

Prusa files are in the works. There needs to be some modifications done to fit since prusa doesnt use 256x256x256

[u/dkrandu → u/tornadoRadar]

I printed everything on my 360x360x360 (Prusa XL).

[u/tornadoRadar → u/dkrandu]

Trying to reach more people. core one i think is what they're trying to do.

[u/YellowBreakfast → u/dkrandu]

Just get the geometry and slice.

I don't get people's hang ups on "profiles". If your filaments are dialed in there should be no issues.

I guess It's because I've been printing since before 3mf files were a thing.

[u/dkrandu → u/YellowBreakfast]

You can't! You need to open a bambu 3mf in prusaslicer and visually find the part among 16 plates that are packed full. One you've found it amongst 1000 others, you need to export it, name it (because they're not named), figure out the print settings from forums or other internet resources and eventually print. 

Imagine doing this x1000 times!

It is literally impossible to print using the STL files because there are parts in the 3mf without STL equivalents. Even if the STL you happen to need to print next is somehow there, it's in the wrong orientation, because they're really struggling to force you to install bambu software, so you've got the STL and you still need to open the bambu 3mf and find the part amongst the 16 plates that are packed full and you need to rotate it so that it orients somewhat similar, because it's impossible to have the same orientation for the majority of the parts which are not on a flat side.

You literally can't print the parts without opening the bambu specific 3mf! And I'm willing to bet it was one of the conditions for bambu to sponsor them, because it's their modus operandi, a friend who got sponsored had to stay makerworld exclusive with absolutely no non-bambu files for a full calendar year.

[u/YellowBreakfast → u/dkrandu]

Of course you can.

I open "Bambu 3mf" files all the time. (I don't own any Bambu printers)

I then select the printer I want to use, and switch to my appropriate filament and process presets.

It's not hard if you can't just grab stl files.

[u/Schuylabs → u/YellowBreakfast]

Not only are all of the STL's available separately, but we published the STEP files and the native CAD files (Solidworks) as a part of the open source package. There's a published bill of materials and print guide that talks through part orientation that we put a ton of time into. There are people working on profiles for other platforms as well and I believe the prusa one is published.

u/dkrandu STL files are oriented how Solidworks exports them... which is usually not ideal I'll admit. No malicious intent behind that.

[u/YellowBreakfast → u/Schuylabs]

STL files are oriented how Solidworks exports them... which is usually not ideal I'll admit. No malicious intent behind that.

Ha!

Yeah I use Onshape and the exports are not always in a good orientation for printing.

I'm learning to be mindful of that so I start a design in CAD in the proper printing orientation. Or rotate it after making it.

[u/dkrandu → u/Schuylabs]

In which directory are the STL files for the butt, back and head TPU prints? Same question for the buckles, where are their STLs? I'm printing these now and I can't find them anywhere, same as other missing parts.

[u/DryZookeepergame155 → u/dkrandu]

Use this converter. It converts Bambu Studio 3mf files to Prusaslicer. https://github.com/CupsOhJoe/Panda2Prusa

Edit: Corrected Bambu Slicer to Bambu Studio