Catsailor.com

A-Cat Mast Repair part2

Posted By: TheManShed

A-Cat Mast Repair part2 - 08/20/09 04:37 AM

Back to work on the A-Cat mast. In the first part I built the air pump system, and then tested it on the hull lay-up for the TMS-20, I did not want to just jump into the mast repair. In this post I am building the sleeves and showing how I bagged out the sleeves. I figure somebody may like to see a post on how to vacuum bag. On this project I had time to take some pics. One the TMS-20 lay-up we were too busy to grab the camera.


Description: 3M masking film great stuff make sure you have the writing on the outside.
Attached picture 3M masking film.JPG

Description: Taped in the sail slot
Attached picture Taped into sail grove.JPG

Description: Masking film rolled around the mast a few times - works better then wax paper.
Attached picture Masking film fitted to mast.JPG
Posted By: TheManShed

Re: A-Cat Mast Repair part2 - 08/20/09 04:41 AM

next


Description: Dumb-dumb on the outside area for bag
Attached picture Dumb-dumb ready for bagging plastic.JPG

Description: Protect the dumb-dumb from resin
Attached picture Taped to protect dumb-dumb from resin.JPG

Description: Getting the bag ready. All of this before glassing.
Attached picture Getting bag ready.JPG
Posted By: TheManShed

Re: A-Cat Mast Repair part2 - 08/20/09 04:44 AM

next...


Description: Building the frog - suction device
Attached picture Building frog.JPG

Description: Frog
Attached picture Frog.JPG

Description: First layer of carbon
Attached picture Layer 1 of carbon.JPG
Posted By: TheManShed

Re: A-Cat Mast Repair part2 - 08/20/09 04:47 AM

Next...


Description: Wetted out all 3 layers
Attached picture 3 layers of carbon wetted out.JPG

Description: Peel Ply
Attached picture Peel Ply.JPG

Description: Bleeder cloth
Attached picture Bagging felt.JPG
Posted By: TheManShed

Re: A-Cat Mast Repair part2 - 08/20/09 04:51 AM

next


Description: View inside still green - rubber feel.
Attached picture View inside.JPG

Description: Put it back on the mast to make sure it cures over night
Attached picture Put back on Mast to cure out.JPG
Posted By: TheManShed

Re: A-Cat Mast Repair part2 - 08/20/09 04:53 AM

I'll pull the peel ply tomorrow. Then I'll be ready to cut the slot area and fit the sleeves inside the mast.

More Later...............


Description: Pulling a 3 micron vacuum
Attached picture Vacuum on.JPG
Posted By: taipanfc

Re: A-Cat Mast Repair part2 - 08/20/09 06:46 AM

Sorry for the hijack, but I am looking for a 5.4m long A-Cat section. So if anyone has broken an A-Cat mast section and doesn't want to go through the above or claimed a new one on insurance, let me know. Thanks.
Posted By: TheManShed

Re: A-Cat Mast Repair part2 - 08/23/09 06:03 AM

I fitted the sleeves to each mast section 5mm and 2.5 mm. I made the 2.5mm sleeve a bit stiffer and leveled the diameter of the inside of the spar section with the sleeves. No more 2.5mm hard spot - drop in wall thickness, so the manufacturing defect has been corrected. I have a little work left on the sleeves now that I’ve fitted everything. Tomorrow, err later today after some sleep I will add reinforcement inside the inner sleeve where the mast sections join and a lay-up to the sleeve in the sail groove area.

I have it level on the sail groove area to make and eyeball straight. I will then throw the laser beam on the mast to make sure it is straight from foot to head. Then drill some alignment holes for screws and glue it together. Following are some pics of the work today.



Description: Cutting to size
Attached picture Sleeve ready to trim.JPG

Description: Layup of the bottom area after cutting
Attached picture Building Sleeve.JPG

Description: Sleeves
Attached picture View of mest sections with sleeves.JPG
Posted By: TheManShed

Re: A-Cat Mast Repair part2 - 08/23/09 06:04 AM

More..

Attached picture Double sleeves.JPG
Attached picture Double Sleeve 2.JPG

Description: Outer sleeve pushed over inner sleeve
Attached picture Outer sleeve slide over inner sleeve.JPG
Posted By: TheManShed

Re: A-Cat Mast Repair part2 - 08/23/09 06:10 AM

More.....


Description: Level and small mast section supported
Attached picture Level.JPG

Description: Dry run
Attached picture Dry Run level and fitted.JPG

Description: Dry Run 2
Attached picture Dry Run level and fitted 2.JPG
Posted By: TheManShed

Re: A-Cat Mast Repair part2 - 08/23/09 06:12 AM

One last picture. One other thing I will do is to taper the sleeves at the ends as to not leeve a new hard spot.
Tomorrow I will make it one mast section again ready for everybody's favorite thing....grinding.
If time, weather, and the morning work sets-up in time start the glass work on the outside.

Later.....Mike

Attached picture Dry Run level and fitted 3.JPG
Posted By: cyberspeed

Re: A-Cat Mast Repair part2 - 08/23/09 04:05 PM

Nice shot of the moon in the last pic in the first page.
Posted By: TheManShed

Re: A-Cat Mast Repair part2 - 08/23/09 04:32 PM

When I saw that I thought the same but knew it was not the moon. The picture was taken at Midnight or there about the object is 25 degrees from the horizon looking NNE out of the shop. The moon would be at least 90 degrees overhead.

Fox Mulder and Dana Scully are you out there ………..

..--------- That is all I need now broke-butt spaceships in the shop I'll never get the TMS-20 done.
Posted By: Rum Bum

Re: A-Cat Mast Repair part2 - 08/26/09 02:25 AM

Fox Mulder and Dana Scully are you out there ………..

..--------- That is all I need now broke-butt spaceships in the shop I'll never get the TMS-20 done.

Hilarious. Nuf said...
© 2024 Catsailor.com Forums