First functional prototype of the bottom bracket box for the P5 printed this morning. Fits like a glove on my P5.
See video below


Also been working on the box for the P2/P3. See digital prototype here;


Debating between the magnets used on the P5 bb box and using a hinge on the P2/P3 bb box. Both boxes would end up with the same type of lid attachment.

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This is my work:
- 1 Torhans Vr System cutted to right size.
- 2 PVC pieces & nautical putty to shape the bottom.


[inline IMG_20181221_211358.jpg]

Looks good. Hinges have a nasty habit of breaking, I would prefer magnets, so long as they are strong enough. Just like the Tri-rig brake covers, these use magnets and I have never had one fall off yet.

This is exactly what I did to mine and I even sent pics to Torhans asked if they can produce something like this, but answer was no. They did give me a compliment though.
IMO, it looks ugly. I like 3D printed version the guy is currently working on.
Top section is parallel to the ground and I like it better that way.

Thanks for the compliment on my bb box design. I just did a 20 mile road test at lunch on my P5, hitting potholes on purpose to test the lid/box attachment and noise.
https://www.strava.com/activities/2128944014

It was perfect, it actually felt fast too, I'm at my lowest fitness in a very longtime right now, I didn't PR, but average speed was 19.9mph. I looked down on it a few times and thought that actually looks really cool from the top.




I'm almost ready to call it done. One small tweak to make so the lid side and box side are flush with each other. Will print a fixed tweaked version tonight. Unfortunately, it looks like rain for the next few days, so I wont be able to road test it on a longer ride till next week.

Going to test fit the p2/p3 box this evening at my local bike shop. Fingers crossed.

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Really well done on this P5 model as well as the Felt IA rear box on your website. I went down that same route (mounting to the seatpost) myself, but bolted through the middle of the seat post on the Felt rather than going all the way around the front.Your solution looks great.

Are you having these printed industrially by Shapeways or something? They look nicer than average. Despite having a Lulzbot Taz 6, and adequate design skills, you're probably going to be receiving some of my money :-)

Thank you for the great compliments. Yes, I use shapeways for the printing, using versatile plastic, which is SLS printed, which gives it a very clean/sharp look. I looked into other service bureaus, but none have had the quality I get from shapeways or at a reasonable price. I have both a taz5 and prusa mk3 and have tried to print production quality on them but the boxes would take over 20 hours to print and reliability of prints is just not there. Looked into a markforged printer but print time would be over a day and half. Stuck with my printers for prototyping.

Will look for your order. :-)

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Is your P5 setup test fit on a 56cm?

Yes, I have a 56.

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Yesterday, custom bike xcessories reached 200 Instagram followers. In honor of that milestone, I am offering $20 off any box I offer on my website www.custombikexcessories.com with coupon code instagram200. First 10 customers to order get the deal.

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Hi, new to the forum and to 3D print. I'd like to try my hand at making a aero bottle for my P5, any tips places to start? What type of printer do you have and what materials did you use?
Thanks

PETG is food safe (I think?)

Probably first place to start is picking a material you’d want to put in your mouth :)

Printer - more expensive will produce better prints. So kind of how much do you want to spend.

Was going to use food grade silicon insert for the bottle. Have been wondering about the best printer for this type of projects. Currently looking at Flashforge printer using NylonX.

Hey yann, any plans for a box for size 48 frame?

Is the P2 box only for the new version or will it fit pre-2014 models too?

As far as I know, P2 box is specifically for this design.

Which bike are you asking about, the P5 or P2/P3. I have a bottom bracket box for the P5 48. Trying to finish a rear box for the P5 48. But having issues getting the fit right as I don’t have physical access to a 48.

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You are correct, box is specific to the post 2014 p2/p3 model

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Hi Yann, sorry, didn't state the frame.

I was referring to the p2/p3 frame. Saw u had a reply tt something was in the works on Instagram some time back.

Unfortunately, without access to a 48 p2/p3 frame it’s hard to develop a box. Out of curiosity, where do you live?

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Hi Yann, am in singapore...saw a photo of one of the local guys p3 with the box and it looked awesome.

The p3 is my bike, its an perfect fit imo and quality is good too. Would really highly recommend it.

Fellow P-Series owners,

After years of no suitable bottom bracket storage system emerging for my P3 I decided to go ahead and make my own.

The CBE model above looks great, but I didn't want to lose the ability to carry a bottle - I like the Drag2Zero concept, but it's not available for the P3 and I felt it could be more aero and the entry mechanism less fiddly. This version fits my 56cm frame perfectly and I am currently working on a 58cm model to be available in the next month or so. If you have a different size frame I can easily adapt it for you by sharing a test strip to use on your bike to guide the measurements.

I comfortably carried an inner tube, CO2 and tyre lever in this and have tested it in a sprint and 70.3 Weymouth last year (pretty awful conditions, so a good test).

The unit is 3D printed and can be shipped on demand at https://timetrialweapons.com/ - the cost is largely that of the materials and printing - this is not mass produced!

Pics below and a video of installation here: https://youtu.be/IALfZK_LvGs

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Rob
https://timetrialweapons.com/

Custom bike storage.

Well done! Any pics from the front of the bike showing the box??

Like this? Now available in both 56 & 58cm frames by the way, the others are in production.

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Rob
https://timetrialweapons.com/

Custom bike storage.