Ruger Blackhawk- several things learned through this- http://www.netfabb.com/ - agreat website to break down the models for easier fabrication- the end of the barrel had to be modified with this program. Unfortunately I didn't cut up the gun body before printing. Instead I used a whole bunch of support material that had to be chipped off. For future prints I will cut the print up and use much less material.
This print is to be used for making leather holsters, the leather has to be wetted, then the model is placed in the leather and as the leather dried it shrinks around the model- plastic is alot safer from rust than the real thing.
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One of the big projects for the month was a new impeller/fan for the Ryobi leaf shredder/blower. The back story on this is I went to dump some metal in the local recycling bin and found this leaf blower that seemed to be in operating condition- I pulled it over it had compression- so I figured I'd take it home and maybe bring it back to life- well it fired right up but vibrated like a CR500 motorcycle- no problem I thought- just buy a impeller from the company and I have a $40 leaf blower. That didn't work out - forced obsolescence is the key word here. Well nothing else to do but make it myself and I did. This is a picture of it being built layer by layer- all 17 hours worth. Installing it was a bit tight- with the support material it takes some finessing to get the thing to fit just right- I got it all put together and made sure to wear some safety gear- leather boots, gloves and goggles- never know if that ABS could tear through the two layers of plastic covering when spinning at 8000RPM- It held together and I think created its own security by being to high flow for the engine and overpowering the engine when speeds get too high- It does the job though and is working great- have maybe an hour on it but leaf blowers aren't normally used that much- I figure it should do the job for awhile- next time I'll print it with Nylon and that should be even stronger. |
AuthorBen Hanks- Engineer with background in Engines and new technology. Archives
September 2014
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