From: Ernie Phelps <eepjr24@gmail.com>
>If you are tight on money and good with your hands, you can build
>your own sprayer. There are plans out there.
Spaceman has instructions for making a sprayer on his website.
http://www.starship-enterprises.net/Papercrete/Sprayer/Index.html
Given the amount of papercrete he's put up, his design must work pretty darn well! It doesn't require any specialized parts or machining. You can get everything for it at the local hardware place.
>The air compressor you
>can check pawn shops, free cycle, ebay local and craigslist for the
>best deal. Go as large as you can within your budget, sprayers take
>alot of air. Something in the 3 HP, 20+ gallon range would be good.
You may want more compressor then that. The tirolessa sprayer requires 7 cfm @ 90 psi, a 3hp will probably supply about 5-6, so you're going to be waiting around for it to fill the tank a lot. I borrowed a friend's 3hp compressor to run an air hammer that needed about 5cfm awhile back and it ran constantly the whole time I worked. I'd have to stop periodically to let it catch up or the hammer would slow to a crawl.
Seems like I read some of the other sprayers required 15-20 cfm or more. I'm not sure how you'd get a compressor that'd supply that kind of air cheaply. Spaceman's page says he uses a 7.5hp unit with his and it doesn't totally keep up.
>> If you have no place to store a truck load of>?? then the expense
>> is ok! FOR premix...(fully premixt just add water and use... Opps
>> don't forget to add the paper...
>
>Sorry, I should have been clearer. You don't need to have space for
>truckloads to mix it yourself.
If you have a store local to you, just use them to store your materials for you (buy what you need as you need it).
>Since
you HAVE to mix PC anyway, why pay 15 percent more? Also, small
>quantities vary radically in price from place to place, so call
>around. You may have a local cement plant whose bag price is alot
>better than the home stores.
It seems to me that the more compelling reason for buying portland cement and making your own mixes is so that you have control over what's in your mixture. If you buy bags of morter mix, you have to take the mixture of sand and cement that they give you. If you wanted less sand, you're stuck (unless you buy a bag of cement to go with it, then you're doing the same thing yourself...so just buy the bag of cement to start with).
>Harbor Freight has a very cement mixer that goes on sale a couple
>times a year for $99 (http://tinyurl. com/3bb8sd). If you go in and
>sign up for their email and print ad's, they will also send you a 15%
>off any one item coupons periodically, making your cost around $85.
>That's a steal.
It's tiny. Have you used one yourself? It's only 1.25 cubic feet. I'm not a plasterer, but that doesn't seem like very much plaster to me. HF has a bigger cement mixer which they put on sale periodically as well.
Greg
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