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ColorFabb

3D Printed Bike

by ColorFabb Jun 24, 2015
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Hi there!
I'm really interested to print this stuff.
But two things becomes on me.
What filament should I use to?
Whow much efforts that bike can support?
Thanks for share this wonder thing!
And if you bring me some litgh, I'll appreciate.

I'm wondering, after 2 years, is the bike still up and running today?? Any cracks or broken parts???

I would love to known what happened with it in the past 2 years... all the goods and bads!!

If it survived being used for 2 years, it's an awesome proof that It's safe enough for normal use... maybe even commute!!

For what frame size are the provided files?

you put the tubes in so the frame size can be what ever you want it to be, however, the geometry is set

Cool idea - I could see this being useful to try with composite filaments or metallized also.

I can't believe you're not wearing a helmet while test riding a 3D printed bike though...

he was just posing for the picture at slow speeds

there are two support tabs on the bottom bracket sleeve, do they just break off?

yes they can be pulled off

Would you please tell me the time of each component to get printed?

the 3 big parts to the frame took me 40-65 hours each with an ultimaker 2 0.8mm nozzle and a layer height of 0.2

The rear wheel mounts have been printed together in about 4h. The rest has been printed seperatly, each joint had a printing time of around 20h on an Ultimaker Original Plus.

What bottom bracket did you use for this? I am having trouble finding on that fits.

Hi croftc12,
I have used a Bottom Bracket Housing with an outer diameter of 43 mm and a length of 73 mm. Inside that is mounted a standard BSA Bottom Bracket.

There is custom Support Material in the models, so I have printed everything without support from the sicer.

did you print with support as i'm about to start printing it and i can see that there is a few over hangs.

What does this mean?

D= OD/ Outer dimension? d=ID/ Inner dimension?

These are the tube sizes that you need for this design:
Head tube: D=36 d=34 L=180

Can you link the glue and tubing you are using?

Thx

How are you able to print the handle bars? It doesn't seem to fit on a 20cm x 20cm platform.

Thanks jokerormike!
Have you made an entire frame? I'm super curious about that! Would you like to share some pictures or a video about your bike?
I've been riding the bike sometimes around, but couldn't find any decay in performance.
Best,
Stephan

Hey good job on the bike.
I made a full plastic one back in Feb 2015 which did not work so well lol.
I am just wondering how often you have ridden it and how well it has worked out for you :)

Dear oostingdesign, the best orientation to print is always the flat side down. On cura you can hit "Lay flat" to get the best result. The seat tube lug has some custom made support material on its lower end, this goes down to the print bed. The head tube lug has its flat side on the bottom, as shown on the picture, and the bottom bracket sleeve needs to be printed aside with the custom support on the print bed.

Dear pagan, the XT-CF20 bike has been printed with our XT-CF20 filament.

Dear roha, danke man :D

Dear ECA77, yes, you are welcome to re-design all the parts and add a disc brake attachment. Go to GrabCAD for the SolidWorks files!

Comments deleted.

On what side are the parts printed for the best result? And could you give me the links to all of the bike parts you used to build this bike? And are all fixie bike parts the same sizes?

This is a real cool project. Just Amazing.
What is the weight of the printed parts? (I suppose according the comments ist is less than 1kg)
What is the printing material PLA/ABS/PET

Das ist echt cool!!!

Would it be possible to make a disc brake attachment point on the rear? I know this is only a proof of concept, but that would make this a lot easier to use other than for a single speed bike.

what are the minimum bed size requirements?

excluding the handle?

Hi Dfrelow,

This is something you can of course easily check yourself by downloading the parts.
The parts have been designed to fit on a 20x20x20cm build platform.

Any updates on durability? This is an exciting project, but I can't see myself using this to commute without constantly being afraid it will just fall apart.

Hi AtomSub,

Please keep in mind that this design is only for promotional purposes.
Besides the trial run we've not really been riding the bike and even if ours proved capable for daily use, there is a lot that will influence each specific print and the mechanical properties of that print.
Therefor we can not take or accept responsibility for anything a user does (prints) with the filament.

Comments deleted.

How about using bamboo instead of aluminum tubing?

Sure! Why not :)

Great job... I am planning to print the parts and mount the bike. After a few search, I have some questions:

  • why did you print the parts using a 0.8 nozzle? Was it for a speed purpose? Do you think a 0.4 nozzle on a Replicator2 would suit?
  • what is the material of tubes? Is it aluminium?
  • did you have any issue, something to pay attention during the assembly?
    Thanks a lot...

The 0.8mm nozzle was mostly to gain some speed since these are big builds. We wanted a fair amount of perimeter thickness so it's faster and stronger to do this with a 0.8 nozzle rather then putting down multiple 0.4mm lines.

The tubes are stainless steel.

You can test fit the assembly as many times as you want before actually gluing everything together, this helps figuring out the right sequence.

What kind of glue did you use?

I've seen A French Company that uses Bamboo as tubes and connectors like your's for indoor bike.

That could be an other idea :) !

Yes would be a cool look! Carbon with bamboo tubing :)

Really awesome !!!
The bike is solid enough ? Can we use it for daily usage ?
How does it react at high speed ?

For sure I will try to make it. Can I do it with XT-WHITE or I need the carbon version ?

unfortunately I can not answer any of your questions because we also have no experience with printing the bike with an other materials. But I believe that it is a trial worth and it would look super cool in white!
We've just finished the bike, so for now we can not really say how long it will last.

Thanks for your reply, the design is a really good job. I'm really excited to test it !

Hi !
Do you know if it's possible with carbon tubes ?
And how much XT CF20 do I need ?

Hey, Carbon tubes should be working but we have no experience which type of glue is the best therefore. We have used one spool XT-CF20 for each: The head tube sleeve, the seat tube sleeve and the bottom bracket sleeve. You should be able to print the rest with the remaining filament but we recommend an extra spool in case a print goes wrong so 4 spools in total.

Many thanks for your answer !

Do you know where I can find tubes ? Measurements seems "specials" and I couldn't find it in France...

Many thanks for your help, and good jobs guys !

I've bought the tubes from a German bike frame tubes reseller. 'KOEHN GmbH - RESET RACING'


Send a mail to: verkauf@reset-racing.de


This is the order list:


1x Down Tube CR35008800 Rahmenrohr Länge: 800 mm ø 35,0 x 0,8


1x Seat tube CR28608 Rahmenrohr Länge: 800 mm ø 28,6 x 0,8


1x Oberrohr CR31808800 Rahmenrohr Länge: 800 mm Aluminium ø 31,8 x 0,8


1x Bottom Bracket Housing 3536 Tretlagergehäuse BSA-Gewinde 43 mm x 73 mm Gewicht: ca. 107,6 g


1x Head Tube CYRK18600 Steuerrohr ZONA Länge: 600 mm ø 36,0 x 1,1 (Columbus)


1x Chain Stays CR19008800 Rahmenrohr Länge: 800 mm ø 19,0 x 0,8


2x Seat Stays CR16008 Rahmenrohr Länge: 800 mm ø 16,0 x 0,8


You will need to cut the tubes on length and you will have to use a turning machine to get the inner diameter of the head tube a bit smaller to fit into a semi integrated headset.

That's great! Could you make a triathlon model?

Yes, you need SolidWorks for this. Just change size, and angles of the frame geometry.SLDPRT and update the Frame Assembly.SLDASM - download it here: https://grabcad.com/library/xt-cf20-bike-3d-printed-bicycle-1