Page 5 of 8

Re: Lee's Monaco utility build

Posted: Fri Sep 13, 2019 7:40 pm
by denbrlr
I'm getting closer to completing the motor stringers. I had to work on them with my hand belt sander to get them straight (they are close but not perfect :)). I still need to cut out a pattern at the front of each where frames 7 and 8 get mounted and also I need to encapsulate them. Here is a picture of clamping one of them to make the lamination, both stringers after lamination, and a closeup of one of the scarf joints. The scarf joints turned out great.

Lee

Re: Lee's Monaco utility build

Posted: Sat Sep 14, 2019 2:01 pm
by denbrlr
The motor stringers are done :) except for encapsulation. That process has started.

Lee

Re: Lee's Monaco utility build

Posted: Sun Sep 15, 2019 7:27 am
by hoodman
Nice scarfs. Good tight joints. They'll be strong.

Re: Lee's Monaco utility build

Posted: Sun Sep 15, 2019 11:45 am
by denbrlr
Thank you.

A bunch of bubbles formed in first coat of encapsulation on the motor stringers. I will sand them down some before the second coat. I know it doesn't really matter since this is part of the encapsulation and the stringers won't be seen in the boat but I am not thrilled about it. I used glen-l poxy shield with a foam roller. I mixed more than I needed so a went ahead and put the first coat on real thick. Is this what could have caused the bubbles?

Lee

Re: Lee's Monaco utility build

Posted: Sun Sep 15, 2019 12:02 pm
by hoodman
If you coat bare wood in the morning when it's cool the air inside the wood will expand as the temp increases causing the bubbles. Coating bare wood on falling temps will prevent the bubbles.

Re: Lee's Monaco utility build

Posted: Sun Sep 15, 2019 12:22 pm
by TomB
Lee,

Your scarf looks great.

I see raised grain mahogany "fuzz" common to ribbon cut. Sand off the high stuff and give it another coat. You can pop bubbles from the foam roller by tipping with a brush on subsequent coats but don't bother on the first coat. I think the fuzz highlighted by the reflection will trap dust and dirt if not sanded.

Tom

Re: Lee's Monaco utility build

Posted: Sun Sep 15, 2019 12:25 pm
by mrintense
This bubbling is par for the course. I've just made cleaning it up a part of the process when I encapsulate. After sanding, the second coat will be much smoother. Just remember that epoxy is not paint and won't act the same way.

Re: Lee's Monaco utility build

Posted: Mon Sep 16, 2019 5:26 am
by denbrlr
Carl,

Thank you for the response. I didn't have a bubbling issue when I encapsulated my frames. When I applied the second coat on the stringers, it seemed like it was trying to bubble again so I tipped after I rolled and that seemed to take care of it. It has been a while since I worked with epoxy (i.e. back in 2010-2011 when I build a TNT) so I guess I have to learn again :)

Lee

Re: Lee's Monaco utility build

Posted: Tue Sep 17, 2019 3:50 am
by footer
I like the little 4" microfiber rollers myself, but that's just me. You can take a brush and lightly brush over it and get rid of them too.
A trick I've used many times, is to take a small propane torch and quickly pass over it and it will pop the bubbles. Works Great.
Some epoxy brands actually have that trick right in their instructions. Do a test board and check it out first.

Re: Lee's Monaco utility build

Posted: Tue Sep 17, 2019 4:34 am
by JimmY
footer wrote:
Tue Sep 17, 2019 3:50 am
is to take a small propane torch and quickly pass over it and it will pop the bubbles.
Or a heat gun works too.

Re: Lee's Monaco utility build

Posted: Tue Sep 17, 2019 7:52 am
by denbrlr
Thank you all for the responses. The rolling and tipping seems to be working well. I'm working on the building form and will hopefully will have the shape of a boat soon :)

Lee

Re: Lee's Monaco utility build

Posted: Fri Sep 27, 2019 6:53 pm
by denbrlr
The stringers are temporarily mounted to the building form and I set the frames on them to see what it will look like. This boat is big and I can see how the boat is going to get in the way of building the boat :) I wanted to get all of the longitudinals done before I mount the stringers and frames because I need the room in my garage to rip the longer pieces before I permanently mount the frames. The longitudinals are planed and ripped :) but I now have a lot of scarf joints to do :?

Re: Lee's Monaco utility build

Posted: Fri Sep 27, 2019 7:54 pm
by Hercdrvr
When you lay out the frames she starts to take shape, beautiful!
Matt B

Re: Lee's Monaco utility build

Posted: Sat Sep 28, 2019 3:53 am
by TomB
denbrlr wrote:
Fri Sep 27, 2019 6:53 pm
This boat is big and I can see how the boat is going to get in the way of building the boat :)
Nicely done. Have you considered putting the build form on casters? A double aisle on both sides would be really handy.

Tom

Re: Lee's Monaco utility build

Posted: Sat Sep 28, 2019 4:41 pm
by denbrlr
Matt/Tom, Thank you. I am looking forward to when she looks even more like a boat :)

Tom,

I considered putting the frame on casters but that would have taken a more complex building form and I guess I was lazy :oops: I think I will have room but I need to be strategic about what and do when.

All of the longitudinal scarf cuts are done including the keel, battens, chine, and sheer. There were 40-50 scarf cuts, whew! I don't know how some of you do these with a jig and router. That would take a long time. My table saw jig worked great again. I made a lot of wedges. Below is a picture of some of them.

I am ready to permanently mount the stringers and frames :)

Lee