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Author Topic: The Worst Ducati in Dallas  (Read 7810 times)

Offline themotoworks

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    • the motoworks
Re: The Worst Ducati in Dallas
« Reply #50 on: Dec 28, 2017, 20:27:55 »
It's do-able...

Offline teazer

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Re: The Worst Ducati in Dallas
« Reply #51 on: Dec 28, 2017, 21:16:10 »
I'm not exactly sure what you are saying here.  :(

http://raresportbikesforsale.com/wp-content/uploads/2015/05/20150516-1999-aprilia-rs250-cup-left-730x488.jpg

http://tyga-performance.com/images/thumbs/1800_1200/apseat3-209f972e.jpg

http://www.apriliaforum.com/forums/attachment.php?attachmentid=167375&stc=1&d=1311687275

http://i.imgur.com/Ik1oDXz.jpg

http://www.iane.co.uk/store/images/source/Speedfiber/RSW250_007_ON_/17428_RSW_250_07_ON_SEAT_1.JPG

https://ultimatemotorcycling.com/wp-content/uploads/2016/12/2017-aprilia-rsv4-fw-gp-250-horsepower-1.jpg

http://www.sportbikerider.us/Pics38/1999-Aprilia-RSW250-203859.jpg

What I was trying to say was that the seat has to have sufficient dimensionality in all three planes to be stiff enough. One way is to have the seat "sides" go around the outside of those lugs.  Then indent the mounting bolt holes so that the hardware is below, or level with, the surface.  None of those examples are exactly what I had in mind but all have elements of the design.

Offline pmalik

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Re: The Worst Ducati in Dallas
« Reply #52 on: May 17, 2018, 21:57:34 »
Actually made an account on this forum to follow this build. I've got about half of another superbike in parts left over after rebuilding a 916, so I'm loving this for inspiration.

(Garage floor twinsies!)
https://www.dropbox.com/s/nensdya65bm67mi/2017-02-06%2013.10.16-1.jpg?dl=0


The FALL RISK wristband is hilarious.

« Last Edit: May 17, 2018, 22:06:24 by pmalik »

Offline rentedshoes

  • Posts: 213
Re: The Worst Ducati in Dallas
« Reply #53 on: May 20, 2018, 16:52:09 »
So, a lack of updates does not mean there hasnít been progress. There has been the normal polishing and surfacing and collecting of parts. However, the tail section is what has been preventing any real forward progress.  As you may recall, this is about where we left off. That picture makes the tail look very visually heavy. It's really not.


I figured there were enough pictures and videos of people making molds and generally tinkering with fiberglass. I figured Iíd spare you that process. The cliff notes are that you need to use tons of mold release and that youíll never get back complex curves that are messed up in a mold. Mold #1 went to the landfill and mold #2 was a reasonable success. It isnít much to look at but there was an absolute mountain of hours that went into making that stupid thing.


Yesterday I finally got the courage and materials to attempt MK1 home made carbon seat outer skin. It went reasonably well. The end product parted easily from the mold but left me disappointed. There were far more voids than I would have liked. However, without a vacuum bag or bladder I think it turned out OK. Iíve got some ideas for MK2 that should circumvent all the issues that this product has.

VOID!


On the shopping list is potentially a vacuum bag or bladder in addition to a roller, a fabric cutter and some wider carbon cloth. 12Ē wide made for some compromises in layup pattern.

Stay tuned. More as it happens!
1997 Ducati 748 Superbike
2015 Aprilia RSV4 Factory
2006 BMW R1200 GS
2009 Triumph Daytona (SOLD
2006 Monster 695 (SOLD)
1972 CB175 (SOLD)

Offline rentedshoes

  • Posts: 213
Re: The Worst Ducati in Dallas
« Reply #54 on: May 21, 2018, 15:22:17 »
Does anybody have a source for vacuum bagging materials? Specifically the plastic bags.
1997 Ducati 748 Superbike
2015 Aprilia RSV4 Factory
2006 BMW R1200 GS
2009 Triumph Daytona (SOLD
2006 Monster 695 (SOLD)
1972 CB175 (SOLD)

Offline doc_rot

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Re: The Worst Ducati in Dallas
« Reply #55 on: May 21, 2018, 15:49:03 »
I use Fiberlay for my stuff, they have the bagging material, and anything else you might need. They have a material called "Strechalon" for bagging that is great for getting in tight compound curves as it will flex unlike the regular plastic bags. They were local to me at one time. They are extremely knowledgeable and have been very helpful to me in my projects in the past so I have continued to use them.

Offline rentedshoes

  • Posts: 213
Re: The Worst Ducati in Dallas
« Reply #56 on: Jun 04, 2018, 18:41:19 »
While I waiting on more composite making stuff to arrive, I decided to turn my focus to the headlight. I knew I wanted to have a round led headlight but I didnít really want to use a traditional bucket. I donít think the look suits this build and Iíd want to make it from carbon fiber.

I had originally ordered a unit from Trucklite but it didnít have the mounting options I wanted. So, it went back and I ordered a different led unit meant for a Jeep.


Once it arrived, I drilled and tapped some holes and started taking measurements for a bracket. I wasnít sure what the final construction would be when I started but I am thinking about 3D printing it from carbon reinforced plastic.

Thank goodness there is so much good freeware out there. Itís truly amazing that A knucklehead like myself can design functional parts in CAD.  I wanted an end product that was very clean and basic and could easily go unnoticed until someone really begins to look at the details of the bike. After many, many failed prototypes I settled on this design. Itís simple, easy to produce and will be strong.



Thank you Cura for free slicing software!


And a couple hours later I had these:

Yes, there is still some of the support material to be removed. This final prototype is basic PLA and not quite strong enough for me to be confident in actually using the part.


I decided to use the factory mount on the head-tube. Add in some titanium bolds and you have a headlight mount.





Iím pretty sure thatís all I have for today.
1997 Ducati 748 Superbike
2015 Aprilia RSV4 Factory
2006 BMW R1200 GS
2009 Triumph Daytona (SOLD
2006 Monster 695 (SOLD)
1972 CB175 (SOLD)

Offline The Jimbonaut

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Re: The Worst Ducati in Dallas
« Reply #57 on: Jun 04, 2018, 18:49:11 »
Man, I'm inspired.  I want to muck about with a Ducati next.  I'm really enjoying watching your progress mate and your bike is shaping up great.

(Off to Craigslist to look for Ducatis)
"I'm telling you Donnie, nuthin' but nuthin' but right"

Offline The Jimbonaut

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Re: The Worst Ducati in Dallas
« Reply #58 on: Jun 04, 2018, 19:10:07 »
Back from Craigslist.  That was humbling.  Maybe a trip to Vegas and a night on the craps table?  Daddy needs a new pair of shoes!
"I'm telling you Donnie, nuthin' but nuthin' but right"

Offline johnu

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Re: The Worst Ducati in Dallas
« Reply #59 on: Jun 04, 2018, 21:18:41 »
Man, I'm inspired.  I want to muck about with a Ducati next.  I'm really enjoying watching your progress mate and your bike is shaping up great.

(Off to Craigslist to look for Ducatis)
I hope you have plenty of dough:)