Search found 742 matches

by Kevin Morin
Thu Apr 04, 2019 6:19 pm
Forum: Metal
Topic: 25' Skiff Build
Replies: 119
Views: 47258

Re: 25' Skiff Build

Yofish, I know the skipper was a giant, and stand up helms are a mutual design headache when you're accommodating the owner's height, I'm current working with a 6-5" or 6-6" owner but at least he's building his own boat! Given the 'well deck' in the house- domino effect to the bottom being hogged du...
by Kevin Morin
Thu Mar 28, 2019 9:55 am
Forum: Metal
Topic: 25' Skiff Build
Replies: 119
Views: 47258

Re: 25' Skiff Build

Yofish, thanks for the added images as explanation of the tank install. The 'off-to-the-side' views answer the questions about install itself but one design question remains; why the sloped 'beds' for the tank? You could have put a horizontal piece in place of the knee or sloped piece of bent materi...
by Kevin Morin
Wed Mar 27, 2019 10:27 am
Forum: Metal
Topic: 25' Skiff Build
Replies: 119
Views: 47258

Re: 25' Skiff Build

Yofish, some questions to clarify the software discussion a bit, and then some about the tank and install. In the software for NC cut path files you ended up with some radius or circlular curves that were defined by the software with many points- very close together to approximate a clean smooth cir...
by Kevin Morin
Sun Mar 24, 2019 4:11 pm
Forum: Hankinson designs
Topic: CNC Conversion
Replies: 33
Views: 20069

Re: CNC Conversion

While not truly conversant with the actual plans for the many pretty wooden boats in the Glen-L catalog- on thing that seems pretty important in any frame cutting exercise is that the NC router would have to be four or five axis? a 3Axis machine couldn't hope to put a bevel (per station) on the fram...
by Kevin Morin
Sun Mar 24, 2019 3:23 pm
Forum: Metal
Topic: 25' Skiff Build
Replies: 119
Views: 47258

Re: 25' Skiff Build

Like Yofish, I build small welded skiffs more than anything (my current project; I'm in the helper role not builder) and for the most part they're my own designs/creations. So I follow a very similar work flow within the DelftShip Pro software that Yofish has shown in the screen captures above. (I p...
by Kevin Morin
Fri Mar 22, 2019 6:40 pm
Forum: Metal
Topic: 25' Skiff Build
Replies: 119
Views: 47258

Re: 25' Skiff Build

Billy C, a few notes to make sure that we're talking apples about apples - re: software. Prosurf is a surface modeling application, so is Delftship (& Pro) so is Rhino and a few others. SketchUP is only a surface modeling application with very limited lofted or swept curved surfaces. In SketchUP, pl...
by Kevin Morin
Sat Mar 16, 2019 9:09 pm
Forum: Metal
Topic: 25' Skiff Build
Replies: 119
Views: 47258

Re: 25' Skiff Build

Forum Readers, Yofish builds in a town named Homer, Alaska, that is on a nice bay, Kachemak Bay (ketch'-i-mack) that opens onto the lower Cook Inlet that is a northern oriented arm of the Gulf of Alaska. The North Pacific can be a nice calm stretch of ocean, but then, in other instances, is subject ...
by Kevin Morin
Fri Mar 08, 2019 7:20 pm
Forum: Metal
Topic: Metal Marine Tanks (mainly welded aluminum)
Replies: 78
Views: 63811

Re: Metal Marine Tanks (mainly welded aluminum)

jetmetal, dedicated tank fittings like these https://www.fueltankparts.com/fuel-tank-parts-accessories/weld-in-fittings.html are lower profile extending from the tank face or top surface. There is some thread down inside the tank allowing the ST El or other hose adapter to remain closer to the tank ...
by Kevin Morin
Thu Mar 07, 2019 6:31 pm
Forum: Metal
Topic: Metal Marine Tanks (mainly welded aluminum)
Replies: 78
Views: 63811

Re: Metal Marine Tanks (mainly welded aluminum)

jetmetal, I use 1" fittings because I expect to bush the fittings for the fuel vent hose down from the aluminum to whatever hose barb nipples are used but large vents avoid many headaches in fueling/filling up. I encourage you to find one of the fuel tank fittings and hose vendors like Perko, Attwoo...
by Kevin Morin
Thu Mar 07, 2019 6:16 pm
Forum: Metal
Topic: Metal Marine Tanks (mainly welded aluminum)
Replies: 78
Views: 63811

Re: Metal Marine Tanks (mainly welded aluminum)

jetmetal, in regard a tank draw sump or one combined with the water bottoms sump; if they're tended regularly (??) they could be the same wall as the tank and probably do just a well in longevity. I tend to use heavier material because I've had so many tanks in where the bottoms were not pulled/pump...
by Kevin Morin
Thu Mar 07, 2019 5:47 pm
Forum: Metal
Topic: Metal Marine Tanks (mainly welded aluminum)
Replies: 78
Views: 63811

Re: Metal Marine Tanks (mainly welded aluminum)

Jetmetal, thanks for your kind words. I'm very glad you're able to get some use from the thread and will try to field the questions in your post. First item, maybe just a confusion in terms but I'll review. I use 1/2" NP size female couplers- and there are flush mount versions of this fitting availa...
by Kevin Morin
Sun Mar 03, 2019 12:05 pm
Forum: Metal
Topic: 25' Skiff Build
Replies: 119
Views: 47258

Re: 25' Skiff Build

Yofish, What about the cabin/doghouse/weather helm is that you don't care for? Several posts have a remark that the cabin isn't your favorite part of a build... but I'm not sure I've read why? If you'd care to share what aspects of that portion of the boat makes it your least favorite- it would be i...
by Kevin Morin
Thu Feb 14, 2019 8:44 pm
Forum: Metal
Topic: MIG Welding Aluminum Guide
Replies: 2
Views: 3457

Re: MIG Welding Aluminum Guide

dalerod, the 70 page generic summary of MIG contains little new, or even some necessary test results (break bend coupons' tests) as references for the one-off builder in marine aluminum- so mostly generic info. The AC-pulse paper is totally new-material as almost Zero MIG [power supplies] offer this...
by Kevin Morin
Thu Feb 07, 2019 12:29 pm
Forum: Metal
Topic: 25' Skiff Build
Replies: 119
Views: 47258

Re: 25' Skiff Build

Yofish, I'll have to work on some images of the current build (might have to do a thread?) but I'm remarking about overhead welding- specifically. We rolled the last few skiffs I've built and this 34'er all on rotisseries because I've found overhead or above the shoulders is actually easier than bel...
by Kevin Morin
Wed Feb 06, 2019 12:37 pm
Forum: Metal
Topic: 25' Skiff Build
Replies: 119
Views: 47258

Re: 25' Skiff Build

Yofish, after seeing the gun(s) close up I agree that is a totally Miller product . The MK King Cobra is looks very similar but the details are the key to understanding: That is not an MK product. You have multiple guns to give your spares and back ups? So if one system hiccups you can use another t...

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