richardandtracy
New member
Earning a full time living as an employee does fit into my equation, as do 2 young kids. The kid's arrival was quicker & easier than that of the hull (well, for me at least!), and they came after it too, meaning that I had more time to share the nappies & child care (one day on, one day off, nursery during working hours). Generally I get 1 day per weekend to play with boats, and the other day is devoted to kids/ housework/ shopping/ scavenging and giving my wife a day off to do her OU degree.
I don't get a lot of time to do things after work in the evenings - but where I can, I do the design on CAD and get it right there, so that making/ fitting the things takes much, much less time. If you design internal units right, they can be built at home & fitting is then merely a matter of drilling & tapping 4 holes in the boat's structure, then attaching the 4 bolts. I worked for an aircraft interiors company for a few years, and the target fitting time for all units was 15 minutes (even for a fully plumbed in lavatory). That's what I aimed for in my boat too - missed it for the heads by about an hour as one of the pipes went through a bulkhead stiffener I hadn't drawn on my model of the boat.
I did the same with my camper [no CAD this time for such a simple job] - consequently the back half converts back into a panel van in under 30 minutes. We don't even have to unload the units, as I put 4 carrying handles on each. (The initial fitting in the van took rather longer as I had to rivet in nut-plates as the van's sheet steel is too thin to tap).
To be honest, the kids enjoy scavenging scrap as much as I do, and my eldest daughter (now 6) thinks it's normal to cast aluminium on the patio and have a machine shop in the conservatory.
As to 321 stainless. It's not as good in salt water as 316 stainless, and is more likely to rust. It has a different galvanic potential, which is closer to that of aluminium - consequently there are fewer galvanic corrosion problems [note: NOT "no problems"] when it's used in direct contact with aluminium (eg pivots where insulators between the two metals are impossible). A much better alternative is to use 316SS & insulate it from the aluminium.
I understand 321SS is supposed to be easier to machine than 316SS too, but I haven't noticed any difference myself.
Regards
Richard.
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I don't get a lot of time to do things after work in the evenings - but where I can, I do the design on CAD and get it right there, so that making/ fitting the things takes much, much less time. If you design internal units right, they can be built at home & fitting is then merely a matter of drilling & tapping 4 holes in the boat's structure, then attaching the 4 bolts. I worked for an aircraft interiors company for a few years, and the target fitting time for all units was 15 minutes (even for a fully plumbed in lavatory). That's what I aimed for in my boat too - missed it for the heads by about an hour as one of the pipes went through a bulkhead stiffener I hadn't drawn on my model of the boat.
I did the same with my camper [no CAD this time for such a simple job] - consequently the back half converts back into a panel van in under 30 minutes. We don't even have to unload the units, as I put 4 carrying handles on each. (The initial fitting in the van took rather longer as I had to rivet in nut-plates as the van's sheet steel is too thin to tap).
To be honest, the kids enjoy scavenging scrap as much as I do, and my eldest daughter (now 6) thinks it's normal to cast aluminium on the patio and have a machine shop in the conservatory.
As to 321 stainless. It's not as good in salt water as 316 stainless, and is more likely to rust. It has a different galvanic potential, which is closer to that of aluminium - consequently there are fewer galvanic corrosion problems [note: NOT "no problems"] when it's used in direct contact with aluminium (eg pivots where insulators between the two metals are impossible). A much better alternative is to use 316SS & insulate it from the aluminium.
I understand 321SS is supposed to be easier to machine than 316SS too, but I haven't noticed any difference myself.
Regards
Richard.
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