|
Post by ICPS-bob on Aug 9, 2007 16:34:18 GMT
From ADMIN: I have deleted the past 24-hours of posts between JustLikeAPill, Matti, and zpyder because such personal banter is not wanted on this forum. In the future, please limit interactions to CP-related posts.
|
|
|
Post by pitcherfreak on Aug 28, 2007 5:25:14 GMT
Hi Matti. You were talking about a wet wall earlier so I thought I'd include a couple of photos of one from work. This is a wet wall from a Harford house and the fan at the other end.
|
|
matti
Full Member
Posts: 216
|
Post by matti on Aug 28, 2007 7:23:27 GMT
Thanks for that mate, it looks like I might not have any up dates for 2 weeks minimum because I'm buying a new welder (150amps,single fase 15amp plug,Ac/DC/ high frequency), was going cheep for 800 so I couldn't reisist It will be a great help with the aluminium wet wall frame.
I havn't been doing much, just putting shelving in.
|
|
|
Post by pitcherfreak on Aug 29, 2007 0:16:24 GMT
Sounds like me ;D. Somehow these things always seem to cost more money than they should. Have to save up to buy some more box section for strengthening this roof. Time these Sarras get protection from the brush tailed possums (damn Australians ;D (It was our department of agriculture that introduced them : . You don't want a few back by any chance . You wouldn't have any suggestions of a places I could get cheap box section (bet the greenhouse suppliers are expensive.
|
|
matti
Full Member
Posts: 216
|
Post by matti on Aug 29, 2007 7:32:42 GMT
Box section? Thats what the Yanks call it and there wrong. You must be Talking about SHS, (Square, Hollow, Section). You can go to a metal fabrication shop and get some but they will charge you a fee to cut it up, go to a metal merchant, somewere like metalcorp or one steel, what ever you have over there, cheeper to buy it by the 6.5 meter length that to have it cut up.
Your better off going with tubing, SHS is about $7.5 a meter last time I checked was a year ago so I'd say it would be abit more now. Tubing is cheaper and stronger.
Just a word on Aluminium if you ever decide you want a wet wall and want to build you own housing like myself, stay away from the 2000, 6000,7000 series of aluminium as they are not weldable, the 2000 series is used on airplaines and will crack if you try to weld it, and I think the 6000 and 7000 series are used for parts like go-kart hubs and your rims on your car, go with the 5000 series, it's got great weldability and the grades 5083 is used on boats so go with that. Better than stainless, that stuff corodes after awile exposed to salt.
I didn't buy the GTAW (Gas, Tungsten,Arc) welder specially for this project, mainly for my other little motorised projects and other aluminium and stainless projects and were I demand high quality welds and weld appearance (See picture below) on steels and steel alloys such as 4130 chrom moly, I have been restricted from untill now but because it was going so cheep (They are usually worth $4000-10000) I thought it would be a good idea to buy it. MIG is fine for high production work like we do at work (We have one of thoes robots too) but for appearance especially on aluminium and full peno I go with the GTAW Now I just need an argon cylinder but I can get that from work. Look what you have done Paul, got me started on metal fab, not relevant to cp's but good for greenhouses and terreriums.
Would you believe the audasity of some people? some barstard broke into work on Monday night and stole one of the trailers we build, but he obviously wasn't smart enough because he left the $9000 one there.
Aluminium 3mm, pulsed GTAW, Peak current 96 Amps, base current 90 I think. I'm pretty good at this, especially for a guy who just walked in sat down and started alu for the fourth time.
|
|
|
Post by pitcherfreak on Aug 30, 2007 1:08:25 GMT
Thanks matti great suggestions. Will have a look around and see what I can find. Have found a place called metal craft which may be able to help. Will have to give them a bell. If you want more detailed wet wall photos if you are planing on building one from scratch just ask and I'll go and take some. Is gr8 to have suggestions from some1 who works with metal as plants are my main expertise. Am terrible at building things
|
|
matti
Full Member
Posts: 216
|
Post by matti on Sept 1, 2007 9:48:44 GMT
I have been working on the shelfing today wile all these little flying ants attacked me, god they are hard to keep streight. Had to buy a new pair of work boots this week since I melted through the old ones so it may be alittle wile longer yet before I get another update.
By the way, how is my spelling?.
Yeah can you take some more pics ? What is that frame around the wet wall, looks like an aluminium one, I'm guessing to attach the film too, how do they get the pads in and out?. ect.
I'm just going to cut my aluminium up with an angle grinder with a cutt of blade and weld them togeather, should be good practice as each side has two corners on it at about 3 meters long each so thats 12 meters of weld all up, should keep me bussy for a couple of hours, I could cut the peices up at work on the gillo and fold them up but the guys are kind of nosey and I don't want to explain to them what a wet wall is and why I would stick it in a GH. I already get a grilling everytime I want to take some steel home.
How thick is the alu around the wet wall? 3mm or 1.6? I was thinking I would use 3 because the last time I tryed 1.6 I blew the arse out of it and my new machine is not pulsed, more expencive yes but it keeps things simple and I don't have to spend a whole heap of time fixing holes.
Correction, 2000 (Copper) and 7000 (Zinc) [()=principle alloying matterial]are the ones that you can't melt togeather.
|
|
|
Post by pitcherfreak on Sept 6, 2007 8:08:39 GMT
Hi Matti, sorry its taken so long. Here are the photos . The grating for the wet wall looks like plasticised cardboard and is flecxable and you could probably bend it and slot it into the frame which is aluminium, about 1mm thick and the frame is rivited and is prbably silicone glued to stop leaks (I assume). The inlet at the top is solinoid controlled and wets the grating. I think the outlet is just to a drain. There are two wet walls in the end of the house and they come on when the temperature triggers the fan. THey are around 1m x 2m in dimension. Yes I like your speelling . Just because you can't say six ;D (see the profanity filter doesn't get it all).
|
|
matti
Full Member
Posts: 216
|
Post by matti on Sept 6, 2007 9:29:38 GMT
Woooo, they look abit scabby with all of the cob webs around, I have one of thoes pads 6Ft high, cost me 200bux.
|
|
|
Post by pitcherfreak on Sept 7, 2007 0:35:51 GMT
Is decidedly scabby, it is over 15 years old. The cobwebs add 'character' ).
|
|
matti
Full Member
Posts: 216
|
Post by matti on Sept 9, 2007 9:40:38 GMT
Well, I'm happy I got my new welder yesterday (It's an inverter) just need some argon for it now and a regulator, should fire it up next weekend to practice on some aluminium so see what thickness's it can handel, then I can decide on a thickness for the wet wall, this will be good for all thoes little greenhouse frames and terreriums and other crap I build, I burnt my finger today playing with the High frequency, making the arc jump from the tungsten to my finger, not a good idear at over 100 amps ;D. On second thoughts I don't need to lay a bead the full length of the alu frame, Just a couple of small welds, doing 12 meters of weld would be unnessesery waste of consumibles, electricity, my time and my money, then seal it up with silicon, brain not working again. Anyways I don't want to hijack my own thread with stuff so, Dad took a photo of the GH today so I will post that too.
|
|
|
Post by pitcherfreak on Sept 13, 2007 3:44:28 GMT
Is coming along well.
I'm broke at the moment have been buying more greenhouse parts grrr. Stainless steel parts are dear
|
|
matti
Full Member
Posts: 216
|
Post by matti on Sept 13, 2007 7:22:47 GMT
If you get stainless make sure you get 316, it's the marine grade and a member of the chromium/nickel group of stainless steels (Chromium gives it the strength and the shiny effect on your polished knifes and nickel the corosion resistance) it has a high corosion resistance especially if polished but like all fe metals and their alloys they rust sooner or later. You can use galvanised parts, it's what I'm using. I have been buying things aswell, broke as. Oh well, it's payday next tuesday...ding ding ding ding ding.
Can't say I'll have much money left after I charged a 70 dollar pair of steel cap boots and 150 dollar gas regulator to my account, and now BOC (British, Oxygen, Company- Theifing #$!@$) want $260 for an argon cylinder rental and the gas....when dose it end?.
|
|
|
Post by pitcherfreak on Sept 14, 2007 0:39:53 GMT
Thanks, thats a great help, I'm quite close to the coast so marine grade would be a good idea . I don't think spending money ever ends ;D
|
|