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RETRO mini-bob

by Dakanzla, published

RETRO mini-bob by Dakanzla Dec 9, 2016

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Summary

This retro-styled mini-bob is a simple design but it offers a lot of fun! Unfortunately I couldn't make a video up to now but here are two videos of the original bob:
https://www.youtube.com/watch?v=EU2a39ZfssQ
https://www.youtube.com/watch?v=uN_MRTIMHz4

Choose your team, print and assemble your mini-bob, build your own bobsled run and take the challenge: http://www.thingiverse.com/groups/bobsleigh-challenge

ASSEMBLING:
You also find a litte construction manual in the main-picture of the mini-bob. Beside the printed parts you need the following materials: glue, 8 screws (20 mm long; 3 x 16) and some weights (sinkers for fishing work great, or something else that's heavy).

For the assembling take the following steps and compare the pictures:

  1. Combine the seal and the top-part. (use glue)
  2. Fill up the bottom-parts empty segments with something heavy like lead (for example sinkers for fishing).
  3. Combine the bottom- and the top-part
  4. Attach the eight screws (3 x 16) to the bob
  5. Attach your flag to the flag-base (use glue)
  6. Attach the flag to the bob (use glue)
  7. Attach the visors to the pilots heads
  8. Attach the pilots to the bob (use glue)
  9. Attach the cockpit to the bob (use glue)
  10. Use sand-paper to make the surface of the bottom-part smooth. After the sandpaper you can use an old jeans: rob it over the cloth until the bottom surface gets shiny. That minimises the friction and your mini-bob gets faster.

Check out NC Hippy's funny assembling video: https://youtu.be/31XsKs21dOs

Team flags:
There is also a top-part available in the files with no flag. If you want to choose a flag, print the normal top-part and the flag-base as well. Then choose one of the following team flags:

If a specific flag is missing and you want me to create one, or if you designed a new one and want me to link it in the description, just write a comment or a message.

TIP: Using an empty bottle makes the building of the bobsled run verry easy :-)

Help creating new designs for the pilots (http://www.thingiverse.com/thing:1945717) or the bob and let me know if you want me to add them here.

Have fun and remember....don't eat yellow snow

Print Settings

Printer Brand:

Ultimaker

Printer:

Ultimaker 2

Rafts:

No

Supports:

No

Resolution:

0.4 mm

Infill:

50%

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could you do a transtar(prey 2017) flag or a tf2 logo flag?

Could you post a link to those that I can see a picture of how it should look like?

manque la france.... snifff

No snow in th UK yet, But, these really need an FPV version!
A small 300mah lipo and an aio camera would work really well!

I agree this would be a verry cool thing :-) As i proposed here: http://www.thingiverse.com/thing:1945717 for example a gopro-mount would be an easy option. Maybe someone finds the time to create a gopro-mount-pilot :-)

pilot no head (mini-bob)

Hi Dakanzla,

Your sledge model looks really wonderful. They are really cute!

I just saw this weekly challenge and I think that you should definitely apply for it. You can win great prizes aswell. You can find more info here:

https://b2b.partcommunity.com/community/group/803/partcloud-net-weekly-challenge-2

Good luck!

Thx for the hint :) gonna check it out :)

May be you can throw in some cold water thru the circuit to "smooth out" the "snow" :)

There was a recommendation up there somewhere to use a bottle to smooth the run. But I bet you could use a spray mister after. It might leave tiny ice beads like on a curling surface.

Mario and Luigi bobs and pilots would be awesome

Unfortunately I don't have the time to make new designs for the bob and the pilots. Thats why I designed this: http://www.thingiverse.com/thing:1945717. Making flags is ok, because it's not that time consuming. Made the two flags you asked for: http://www.thingiverse.com/thing:2043918, http://www.thingiverse.com/thing:2043929. Hope thats ok for you :-)

pilot no head (mini-bob)
Palestina (mini-bob)
Jedi (mini-bob)

thank you so much

Could you make a Jedi flag

Ok, how should the flag look like? Do you have a specific design in mind?

yes. I can't figure out how to copy an image. So could you look up rebel alliance symbol or jedi symbol on google. You could also just do yoda's head if that's easier. Thanks So Much. :)

sorry for the trouble but could you possibly make a Palestinian flag and/or university of Georgia flag

how would you make custom pilot heads?
I am going to ski and plan to make these

Made you some jedi-models with yoda, r2d2 and c3po: http://www.thingiverse.com/thing:2043929/#files

Jedi (mini-bob)

I would take a model from thingiverse like yoda and combine it in tinkercad with my headless pilot version.

This is incredibly cool. Nice job.

so fun ... but never snow in my country

Question, how long did this print take to make? how much weight is supposed to be in it? Is there anyway to downscale this so I could make a smaller version? Thanks!

on a sunhokey prusia i3..... 5 hours for the top. 4.5 hours for the bottom. 1 hour for the windshield. 15 minutes for the seal. 45 minutes for the dudes and their visors.

Used 20% infill for all parts.

The printtime depends on different factors like the infill you use and the layer-hight. With my ultimaker, 4mm layer-hight and 50% infill it took about 24 hours for all parts. Depending on what slicer-software you're using, the Information about the duration of the print should be available. Also the down-scaling should be possible with you're slicer software. if not you can use tinkercad for example to do the downscaling. I used Cura as slicer-software which supports both (estimated printtime and downscaling). I used about 300 grams of lead. When you downscale the model, you have to find smaller screws that will fit or find an other solution to Combine the parts (for example glue) but it should be possible. Just havent tried it yet.

I have access to the same printer! Good to know all this! I'll post a picture of a down scaled version of it if I do end up making it, thank you for the reply!

Hey cool, Im curious for the result :)

Dakanzia! You did a great job on this model and I had a lot of fun building, painting and playing with my sled before the snow melted away :) I'm looking forward to the next time it snows now... which is unusual. heh.

I made a video of my experience building and playing with this sled. I think you'll find it entertaining. Here is a link https://youtu.be/31XsKs21dOs

Feel the Rhythm! Feel the Rhyme! Get on up, it's bobsled time!

The video you made is great! Thanks a lot for proofing that the model works well :-) Ist so cool to see that.
I mean there exist some rituals for making it rain...probably there is an alternative to let it snow? heh

I believe the procedure for snow is to do the rain dance with an ice cube jammed in one ear while playing air guitar with a snow shovel. I'm certainly willing to give it a try!

These are awesome. Too bad we don't get much snow where I am.

The bottom isnt flat, the front is a bit lower than the rest. I ended up sinking the model a bit down on my print bed to flatten it

I just verrified that. The bottom part is flat (at least in cura). You just have to print it like it comes in the file (upside down).

Nice work, but the mesh need to be smoother

I like this style, it looks kind of retro...:-)

Great work, this looks like so much fun!

"Sanka, you dead?"... "Yeah man!"

came here to say that

Great idea, the video is amazing!

This reminds me so much to a Mario Party minigame... I LIKE IT!

Lets make a mario bob then :)

We need some 3D printable tools to make it easier to build the track ;-).

Up to now I did not achieve to create 3d-printable dynamite ;) Gona think about it, thx for the idea :)

Maybe design a multi-piece, printable run (like a marble run or pool slide) for those who have now snow ..... :-)

This is so cool, man! Awesome work, such a clever idea!

Thx :) unfortunatelly theres no snow here up to now to try it out

Great!
Thanks for this super winter fun design.

Cant wait to see some makes and Im curious to see how good it works

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