Author: AKeson

CARBON FIBER CASE (How It’s Made)

Custom composite parts made from carbon fiber and epoxy can be made at your own workshop should you have the proper equipment, knowledge, and materials. Doing epoxy resin infusion with carbon fiber reinforcement is pretty advanced, but is possible. Here is an example that includes the process of building a custom mold: From Youtube Matthieu Libeert In this video I show you how to make a laptop case in carbon fiber from start till finish! This is a pretty advanced tutorial that should show you some insights on how I’ve made it. The laptop used in this tutorial is a Lenovo thinkpad X1 Carbon http://shop.lenovo.com/be/nl/laptops/… for more specs on the laptop if needed. I’ve decided to share the progress on how I’ve build it on here. I know it very hard to make something like this at home without the right equipement but I hope this will inspire you in some way. At least it will show you how carbonfiber parts are made in the F1/bike/race/space industry It all starts with drawing everything in fusion 360 to do a virtual fit in 3D. After that I’ve used my X-carve from inventables to cut out the exact shape. Have a look at http://www.inventables.com to find more about the X-carve Once carved I’ve decide to route all the sides of the pre-mould to get a nice rounded edge on de MDF....

Read More

Final Touches for Repair of Fiberglass Arctic Cat Snowmobile Hood

Following the repairs to the inside and outside of the Arctic Cat Snowmobile hood, it is time to provide the finishing touches to complete the project. There were a couple of edges where the new fiberglass repair had been hanging over.  These need to be ground back to recreate the clean edge. The next step is to sand off the inside of the repair areas.  The epoxy leaves a shiny surface.  Sanding it down will allow it to create a better bond with the following process. Now the inside of the repair can be painted.  This paint is optional, but it does wonders to hide the repair.  The prior failed repair was not painted over, and it was very obvious that there had been a repair.  The paint in question was flat black spray paint from a rattle can.  A layer of primer prior to the paint would have been a better solution, but this is only the bottom side of the hood. The bottom side is completed, and now the top side can be finished.  The surface has been filled, sanded, and smoothed.  Now it can be painted. The original hood was all gelcoated, and a proper repair would have been black gelcoat.  However, the hood is 45 years old, and there were several other cracks and blems surrounding the repair area.  A proper job would have included...

Read More

Cosmetic Repair of Fiberglass Arctic Cat Snowmobile Hood

Following the repair of the inside of the fiberglass hood from the Arctic Cat snowmobile, it is time to tackle the outside portion of the repair. The outside of the hood had gelcoat that had been damaged, and is in need of a cosmetic repair.  The hood had been prepped with a grinder to remove loose pieces and provide an abraded surface that will have good bond strength. The first step is to remove the tape that had been limiting resin intrusion.  The resin was well on the way to curing prior to the tape being removed. Next was to begin the actual repair.  The area was taped off to limit the resin and filler getting onto the neighboring gelcoat.  The tape was used more as a dam than as a flat edge. The repair material was a filled epoxy resin.  The first step is to apply the pure mixed epoxy to the the substrate.  This is done prior to the application of the filler.  It helps with the bonding process to have some pure epoxy between the filler and the fiberglass. Then a batch of epoxy filler was mixed into a thick paste to be applied to the repair areas.  Part of the challenge is to fill the voids to be level with the existing gelcoat.  If they are too high, they will need to be sanded off. ...

Read More

Structural Repair of Fiberglass Snowmobile Hood

The damaged snowmobile hood is prepped and ready for a proper repair with new fiberglass and epoxy resin. The hood had already been ground to promote adhesion.  Then it was cleaned to remove contaminants. The inside of the hood will be repaired first.  The repair will be completed using fiberglass reinforcement and epoxy resin. To keep the resin from leaking through to the other side, I used masking tape to cover the crack and other holes, applying it to the backside of the work areas. The damaged hood was out of shape, and it needed to be pulled back to being straight.  The corners of the hood were cracked and the center section of the hood was moving around.  Not wanting the repair to permanently alter the shape of the hood, a pipe clamp was used to pull it back into the proper shape. The first part of the process was to mix resin and cut fiberglass.  Mixed epoxy resin was applied to the repair area to wet it out.  Then a couple layers of the fiberglass random strand mat was wetted out and applied.  Following  of the glass strand mat, the 1708 was cut out to cover the general area.  The 1708 was wet out and and applied.  Then another layer of glass strand mat was applied to the general area that was ground out. An inexpensive bristle...

Read More

Categories