It was a 4 day work week for most people here in Turkey with May 1st being the big “Emek ve Dayanışma Günü” or “Labor & Solidarity Day” public holiday also known simply as “May Day”. Very similar to the holiday around this time in many other countries. With this also being our first week back after our great two week trip to Florida for some fabulous family and friends time and me sporting my semi annual haircut we thought it was a good opportunity to put together an updated and highly requested video walkthrough tour of Möbius to summarise all the progress since the last video tour. First a few photos of the progress this first week of May and then the video tour at the end. Let’s get started!
The 10mm thick Hatch Lid plates, just out of the CNC machine, were next up for the in-house fabrication of all the deck hatches so the prep work began on welding the inner frames to the Lid plates. 
If you have not yet read about these hatches I designed in previous posts, here is a quick rendering of the complete hatch assembly. The Lid is in Blue with 15mm / 5/8” thick tempered safety glass adhered on top that sits flush with the deck surface.
The hinges are hidden below the decks to make for an even cleaner appearance with no obstructions on the deck.
Here is a stack of 4 of the Lid plates with the edges chamfered at 45 degrees where the flat bar of the inner frame will be welded and then all the edges which will be on the inside of the hatch lids all radiused. The 15mm glass will be adhered to the opposite side.
Nihat and Uğur prepping the next pair of Lid plates.
The four large radius corners are carefully formed in the 8mm / 3/8” thick flat bar that creates the inner frame of the Lids is fitted to be perfectly flush with the outer edges of the Lid plate, clamped and tacked in place. The ends are trimmed to the just right length and welded.
And in no time all ten hatch lids are stacked up awaiting Sezgin to finish weld them all around. In the coming weeks these will be cleaned up and prepped for attaching the hidden hinge arms to the Lids and fitting them to the hinge boxes welded under the decks so stay tuned for more as the hatches progress.
Having pretty much finished gluing all the miles of EPDM insulation to all the interior aluminum surfaces, the seemingly tireless Mummy has now shifted to applying all the thick cloth backed AL foil to the lower sides of the hull Inside the Workshop. This is the same cloth backed foil covered all the walls and ceilings in the Basement with that you’ve seen in previous posts which produced a fabulous way of covering the EPDM in areas where it will be left exposed to protect it from wear, help reflect light and be easily cleaned and maintained. 
In the Workshop we are using the same foil to cover the EPDM that extends from the top of the long workbenches down to where the EPDM stops at the floor/bilge areas.
This is the opposite “wing” of the Starboard side of the Workshop which runs down the side of the Engine Room enclosure walls you see here on the left. The white Wire trays are all mounted up high on the hull on both sides and will soon be filled with wires, hoses and cables for all the electrical and plumbing runs. The 500L Day Tank will be mounted at the far end up against the WT Bulkhead where the Guest Cabin begins.
Progress also continues in the Dinç family where Dinçer, the co-founder of Naval Yachts, and his wife Nesli are kept eXtremely busy raising their new three boys, twins Mert and Yiğit 
and 3 year brother Demir, who as you can see is loving being their big brother.
But enough with the static photos and text and on with the promised video walk through tour.
We put up the previous walk through tour in this “Skinning the Skeg” blog post back in October 19t last year (2018) and you click on that for a review if you missed it. Or you can go direct to this link to the YouTube video of just the Walk Through video tour if you prefer. This was one of our most viewed posts and we’ve received a lot of requests for more video and another update so here it is.
With such an incredibly diverse collection of followers there will be too much detail or it is going too slowly for some of you so I will put in visual breaks as we move from one area to the next with renderings of each area of the boat to help you visualise how these areas will look when completed. I hope this will make it easier for you to jump around within these longer videos if it any area is getting into too much detail.
We will start with a tour of the interior spaces beginning with the forward Master Cabin and work our way back all the way to the Workshop/Engine Room area and then show you around up on the deck and down on the shop floor in a second video.
WALKING TOUR of INTERIOR SPACES as of May 4, 2019:
This video is much longer than usual at about 27 minutes so grab a good beverage and a comfy chair before you hit Play. With SUCH a wide audience here there may be way too much detail in some places for some of you so remember the great thing about video is that you always have the Fast Forward key!
WALKING TOUR of EXTERIOR & DECK as of May 4, 2019:
Second video, about 26 minutes total, is a Walkthrough of the exterior spaces from the Aft Deck to the SkyBridge to the Forepeak and a last look at the Bow Thruster tube and new Hatch lids that are the most recent additions.
Please let me know how well these videos are working for you, suggestions for changes, additions or any other ways to make this all more interesting and valuable. I’d love to honour the many requests for more videos and more on the Mobius.World YouTube channel but I have to prioritize my time and attention to the build which fills about ten hours of my day six days a week so I’m challenged to have the time to do all the video editing on top of this but will do my best to provide more video as the build progresses.
Thanks SO much for joining us and hope you enjoy.
Hey Wayne, What do you do for a vapor barrier between the hull and finished walls. Must be a major consideration in a marine environment. Figured you would have applied epoxy paint or some equivalent to the inside hull? Awe inspiring project. Watched some YouTube videos this week of builds for very large wooden sailboats… amazing the amount of labor. Just got back from San Francisco watching the 50 foot F50 foil catamarans… they exceeded 50 knots in a very choppy bay… always on the edge of capsizing or burying the nose.
Really enjoy your videos and progress reports.
John
Hi John, always good to hear from you. No separate vapour barrier required with the EPDM as it is effectively forms its own. Paint and aluminum are pretty much at odds with each other so we don’t use any as it is only a question of if not when it will start to peel off. Paint also becomes quite a problem with aluminium as any scratches or lifting of the paint forms small crevices between the paint and the aluminium where water eventually enters, becomes oxygen starved and becomes acidic and begins to produce that white powdery or goopy stuff you commonly see on aluminium parts. In the case of the space between the inner aluminium hull surfaces and the inner walls, the EPDM is adhered directly to the aluminium and fills most of the space and then the inner wall plywood seals off the whole interior space so there is no air movement or circulation in there and thus no condensation. Applying the EPDM is therefore very exacting to be sure that it is fully adhered to the entire surface and that there are EPDM surfaces for the plywood to press up against and seal the space off. Not terribly difficult, just very exacting and labour intensive, but the payoff is huge for us and should last the lifetime of the boat so well worth all the expense and effort.
Bet you had a blast on your recent trips into those very diverse sailing worlds and thanks so much for following along and contributing.
Wayne,
Great videos thanks to a very informative narrations and camera viewpoints. I have several questions, you may have answered these before but if you did I have forgotten (advancing age is my excuse and I’m sticking to it haha).
A. On the fuel fill boxes, are the lids to the fill lines down on the inside of the box or up higher? will the box be easy to clean after use?
B. On the sky bridge, will there be a full windshield in the front or just a little partial wind screen, will the side windows you mentioned be full size or just windscreens as well? C. I forget what C. was suppose to be, advancing age excuse again. I will add it later if I remember. I think your videos are some of the best that describe what is happening on a boat build or retrofit. Your explanations and Christina’s camera work, along with the renderings make each step very clear and concise, I am amazed sometimes to the common sense thoughts and design and details you have put into this build. If I would build a boat from scratch, I would copy the heck out of you, which they say is the most sincere form of flattery. I just remembered my other questions.
C. On the area by the office, will there be a door from the outside to screen off the shower and toilet. I know there is one on the toilet it’self but if you are taking a shower or coming out of the shower to the bedroom can you be seen from the outside?
D. How wide will your counter tops be in the shop and will that vary depending on space available in front of them?
Thanks again for sharing this build with all of us, it is quite fascinating to see each step along the way. I spent 40+ years in construction management and building, so I love seeing all the steps come together until. you have a completed building or in this case a beautiful & very practical boat.
Thanks again
Orville
Hi Orville, thanks for your kind feedback on how the videos and other blog content is working for you. One of the biggest challenges of this medium is that the content creators have no way of knowing how it is being received by those reading, listening or watching. A bit like teaching or giving a presentation to an empty room or a wall. So I am always extremely appreciative of any and all feedback I can get as to how our content is working for those following along with us. Always good to get positive feedback on what is working of course but critical feedback noting things that are missing, going too fast or slow, too much detail, not enough, etc. is especially valuable along with people’s suggestions and ideas to add to our own. I think we make it clear that we are designing and building a “Goldilocks” boat that is “just right, just for us” so we are very much doing things our way and not asking for anyone’s permission or direction, but as the saying goes “we is smarter the me” so we also value all the input we can get from others to add to our own, help us see things from different perspectives, consider things we may not have and so on. At the end of the day we still make our own decisions for our own reasons and logic but this is as like to put it “a collaborative work of art and engineering” and we consider people like yourself who follow along and add their questions and comments to be part of what makes this such a worthwhile and collaborative project.
On to your questions finally;
A. I realized after I had processed all the video that I had forgotten to cover the exterior views of the fuel fill and vent boxes so my bad there and I will try to cover that in one of the next videos. In the interim, if you go back to the post “That Which Fills Must Vent” or search on “fill boxes” you will get some photos of the exterior of the fill boxes which should answer your question I think. The sealed bolt on lids of the Fuel Fill boxes are located at about the top 1/3 of the height of the box to create a catchment area below them for any fuel that does get out and then each of these fill boxes have a drain pipe coming out the bottom which caries any spilled fuel back down into the tanks. So no cleaning should be needed other than maybe a quick wipe with a fuel absorbent pad. With the lids sealed back in place after fueling up the whole filling system is all sealed off so no smells get out and no moisture or dirt gets in.
B. The 3 SkyBridge windows that wrap around the front, one center and two angled off each side, will have light aluminium frames around them that fit into the aluminium U track that runs all the way around both top and bottom of the whole perimeter of the SkyBridge coaming and are fastened in place. So in this regard I would say that this will be a “full windshield”. However they will be quite quick and easy to remove anytime we want to fold the whole roof and arch down into hunkered down or canal mode. For the rest of the windows we currently intend to make these out of acrylic sheet, approximately 4mm thick or so such that they are stiff enough on their own and then the top edges will slide up into the upper U track enough to allow the bottom edge to clear the top of the lower U track and slide down into it. Then I’ve designed some little cam lock levers that will push down from the top track to keep these panes from rattling or moving around. To remove a slight twist of these cam levers allows you to lift the panel up and out of the channels and stow each one in a dedicated storage rack up on the aft area of the SkyBridge.
The idea is to make it quick and easy to put these acrylic window panes in and out of the sides and aft end of the SkyBridge as weather dictates and yet not have any loss of visibility where each pane mates with the next vertically such as is the case with windows framed with canvas and zippers. To help seal these vertical joints I am currently experimenting with some clear 2 piece silicone and magnetic seals that are typically used to lock and seal glass shower doors closed. If it works as hoped, this will create a very quick and simple self locking and sealing joint between each side and rear pane with very minimal loss of visibility. Stay tuned for more on this in future posts as it plays out.
C. Good question on the privacy when going in/out of the shower. What I currently have designed is to have the door on either the shower or the toilet, hinge on the outer edge closest to the corridor and be of the “one door, two frames” type. We had one of these in the head of our previous boat and it was brilliant. The way these doors work is that the one door closes against two different frames. In our case one door frame would be the shower itself and you would open the door to enter the shower and close it behind you. Then when you are finished you open the door 90 degrees and it shuts against the 2nd frame that is the entrance to that short hallway between the shower and toilet. We will also have this same kind of double duty two in one type door at the entry into the Master Cabin at the bottom of the steps down from SuperSalon. In one position it shuts against the door frame in the entry way and in then when opened 90 degrees it becomes the door that closes off the full height wardrobe closet on the outer Stbd. Side. Make sense? I will post a better explanation and some drawings/models/photos in future posts.
D. Correct the Workshop Workbenches will vary in width to maintain the same walking clearance around other structures such as the ER Enclosure. They range from about 730mm/30in to 450mm/18”.
Hope that answers your questions and if note please let me know add more as you think of them.
– Wayne