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Speedy
recumbent guru

USA
885 Posts

Posted - 12/14/2017 :  08:47:00  Show Profile  Reply with Quote
Matthew
If your interested in any shortcuts to building this project ...
I have a PDF of the Pursuit and a few bits to start with. Rear stays, dropouts seat, forks, handlebars, front fairing etc.
Everything is "new, old stock" that's been on the shelf for 9~10 years.
You'll need to assemble and weld the main frame.
Contact me off line if interested.
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alevand
human power expert

USA
3004 Posts

Posted - 12/14/2017 :  10:38:27  Show Profile  Visit alevand's Homepage  Reply with Quote
Hi,

There are some bike part cad files available online, that can just be plunked into the model assembly, without having to make them from scratch:

https://www.3dcadbrowser.com/3dmodels.aspx?category=39
https://grabcad.com/library/tag/bicycle
http://www.3dcontentcentral.com/Search.aspx?arg=bicycle

C:
Tony Levand

Edited by - alevand on 12/14/2017 10:40:27
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Speedbiker
human power expert

USA
3783 Posts

Posted - 12/14/2017 :  10:38:49  Show Profile  Reply with Quote
Warren, good job managing the forum.

I believe young Matthew will do quite well. And what a future!
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carolina
recumbent guru

USA
630 Posts

Posted - 12/14/2017 :  15:21:28  Show Profile  Visit carolina's Homepage  Reply with Quote
Matthew: what warren wrote two shells make 1 shell/fairing. Over a bicycle.

What i wrote, has not been done. It makes two quick molds (L & R) very simple. Then lay carbon & innegra in both and pop out and trim next day. Warren stated how to mount shells faring to the recumbent 2 wheeler.

Ask em which steers best on track, lwb or lowracer.

What is your shell or cover of your race bike made out of???

Give a simple listing of what u are doing. There are no short cuts. Maybe some techniques that pay you back somehow or save money.

Like:
1)
2)
3)
4)
5)

Then members can chime in. They know what u are building.
—————-

Man, if you had couple blocks of boat dock foam, can of each duratec product, lil’ ebow power equals 2 quick L & R molds. Spray the 2 duratec’s on, start sanding 24 hours later. Then buff. Layup left side after dinner, lol yes!! Right side next night.
___________

velosRus.com

Edited by - carolina on 12/14/2017 17:21:36
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Matthew Martin
Starting Member

USA
30 Posts

Posted - 12/14/2017 :  17:21:22  Show Profile  Reply with Quote
So what you are saying Carolina...correct me if I am wrong, is to start with the female molds and just make layups from that, as opposed to making a male plug and getting the molds off of that?

My plan (general)
1. build up a steel frame lwb bike
2. build a coroplast mock up fairing for my bike and test the shape.
3. If it works as it is intended, start the build a male plug
4. make female molds from plug.
5.lay up final fairing
6. mount fairing to bike.
7.create plastic oven
8. form my windows
9. assemble
10. electronics(lights brakes,Etc.)
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carolina
recumbent guru

USA
630 Posts

Posted - 12/14/2017 :  17:32:42  Show Profile  Visit carolina's Homepage  Reply with Quote
Female molds: re read post above i wrote another paragraph.

Oh yea, definitely female molds with your two profile gage. Once you have L & R joggle and the way u want it spray the styrene duratec and then duratec grey primer. Sand and buff. Your in bizz.

CALL FIBERGLAST.COM , TALK TO EM, TELL EM WHAT YOUR DOING. THEY WILL GIVE YOU SOME GREAT FINAL TIPS TOO. You will own the molds and make one side per day. This process is alot easier, think it out. You can get your shape down, you have pc and knowhow. I just free hand with profile gages and blocking down duratec.

Maybe these members will chime in about lwb or lowracer. I sure dont know, even though I built a lowracer l like and mod’ing the boom soon.
______________

velosRus.com
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Speedy
recumbent guru

USA
885 Posts

Posted - 12/14/2017 :  21:34:55  Show Profile  Reply with Quote
Female molds made with CNC machining works well and is a great time saver.
Female molds done by hand is just about the most difficult approach possible.

Your hard earned experience may vary.

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carolina
recumbent guru

USA
630 Posts

Posted - 12/14/2017 :  23:50:53  Show Profile  Visit carolina's Homepage  Reply with Quote
Opinions

velosRus.com
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