AJM-Rev 2 .21 rigger build

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Hammer, you sure can! It actually threads very very easy! Just make sure the tap is sharp. Its nearly identical to Delrin, in both machinability and material properties. But, its about the same price as Delrin, so if a person was to buy it, I would just as well recommend Delrin instead of PVC. Unless you can get it for as cheap as I do :)
 
And Anthony, (i dont consider myself a machinist per say, just someone trying to get by. Jim Allen and Steve Wood are machinist) but we do get some pretty cool, custom parts. I have found out just with this boat alone. Being able to make your own parts, or thinking outside the box and coming up with something (like the strut above) can save you a ton of money, if you have the means to make it. This boat alone, in all of the parts i have made, has saved me literally hundreds of dollars. From the strut and one piece bracket, to the boom tube blocks, boom tube collars, turn fin, pipe mount, motor mounts and boom tube pins. It just all adds up fast! I wish more people would make there own parts, or invest in there own machines and learn how to make or do things. Its amazing how much a person can teach themselves just by starring at a piece of material chucked up in a lathe, or looking at drawings on paper, before you start to turn the part. Heck, even from making mistakes. Like not accounting for the fact that when you turn a cross slide handle in on a lathe .015, your actually removing .030 worth of material. I dont know how many times I have done that, just to measure it and go "oh damn, i did it again!"
 
And Anthony, (i dont consider myself a machinist per say, just someone trying to get by. Jim Allen and Steve Wood are machinist) but we do get some pretty cool, custom parts. I have found out just with this boat alone. Being able to make your own parts, or thinking outside the box and coming up with something (like the strut above) can save you a ton of money, if you have the means to make it. This boat alone, in all of the parts i have made, has saved me literally hundreds of dollars. From the strut and one piece bracket, to the boom tube blocks, boom tube collars, turn fin, pipe mount, motor mounts and boom tube pins. It just all adds up fast! I wish more people would make there own parts, or invest in there own machines and learn how to make or do things. Its amazing how much a person can teach themselves just by starring at a piece of material chucked up in a lathe, or looking at drawings on paper, before you start to turn the part. Heck, even from making mistakes. Like not accounting for the fact that when you turn a cross slide handle in on a lathe .015, your actually removing .030 worth of material. I dont know how many times I have done that, just to measure it and go "oh damn, i did it again!"
Rodney, Don't feel bad, I still feed in double the amount once in awhile and I have been doing it for 25+ years.

Jim
 
Get digital readouts, you dont feed in double any more! :D

I make a bit of stuff, but only to try to gain an advantage by doing something different. Time is money, and it takes me a while to make stuff, so if I can buy what I want then I do. Zippkits has a 21 hydro hardware package that includes strut, rudder, boom collars etc for $54. At my hourly rate I cant make all that stuff for $54!! B)
 
Ian, I agree that time is money, but to someone with very little money, i have MUCH more time, even if in a couple hour increments, then I do money my brother. :D
 
Hey Rod, it is good to see people making their own stuff, trying new ideas! I like the plastic strut. Be careful that it doesnt move under load tho with a single screw clamping it.
 
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I have probably 40 different ideas on parts and things to try if I had the means to make the parts!!! And yes I definitely have more time than money,.., and I don't' have much time!!!

can't wait to see it run Rodney!
 
alright, got more done between last night and tonight. Got the top skin on the boat, and sanded to fit. fitted the strut, and motor mounts. Also tonight got the ski sides fitted and glued to the boat, and the rest of the sponson's sealed with the first coat of epoxy. Also started to seal the tub, but the epoxy started to thicken, so only got a little bit of that done. Also got the nose block glued on. will sand that to fit tomorrow, and I would say by the end of the weekend, the boat should be complete, and sealed. Anyhow, onto the pictures.

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Can't tell for sure if you've done it or not, but make sure the tub is fiberglassed. That's a nice build, don't want to see it in two after a few buoy whacks. I learned the hard way with my 20 hydro once and it's not fun when you hit a buoy and have the tub snap in half... not to mention watching the expensive half with motor and radio, etc. go down to the bottom while waiting for someone to bring a pike pole out to grab it.
 
Alright, few more pictures. Looks awful close to done to me ;) Have to still rig the radio box, get a fuel tank, and buy a cowl and prop. Then she is ready to hit the water for some testing....next year. Anyhow, here is a few more pictures. Going to take it to work tomorrow and measure its weight as it sets right now. Didnt turn out as light as I would have wanted, but thats OK. She is strong.

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just did a quick and dirty weigh on it, and got 6 pounds with the stand, and 3 pounds once I removed the rigger. So it sets at about 3 pounds currently. That is without fuel tank, servo's, receiver, linkages or battery. So I would have to guess probably 4 pounds rtr? maybe a little over? I was hoping to get it done at about 3.5 pounds, but thats OK.
 
Nice, looks like you got some glass in there. Just make sure it goes up the inside walls and bulkheads. I know it adds some weight, but that will not be a problem.
 
Jeff, yes I did put some in there. But just in the engine bay area. Its actually very very stiff. The triangle stock adds alot of strength in itself. Glued in the rudder servo blocks tonight. Tomorrow I will figure out the throttle servo location, and epoxy in those blocks.
 
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