Evil Dead Chainsaw [WIP]

armamentfactory

armamentfactory

Sr Member
Hi Guys, I've been taking notes from the chainsaw build threads, and decided to get started on mine, but with a little twist.
Unfortunately for me, that tiny little, specific model of chainsaw doesn't exist in this part of the world, so... I'm building it with PVC/Sintra!
I'm also planning to take it to conventions, so the reduced weight is a bonus.


Day 1 & 2: I started with the guide bar, and worked the body proportions around it. Neca Mego-style chainsaw for reference.
DSCI0943a.jpgDSCI0945a.jpg


Day 3: More parts! Got the top handle mocked up, pull cord housing, and wrist collar in place.
DSCI0948a.jpgDSCI0951a.jpg


Phase 2! I'm thinking it's possible to build a working chain drive, and keep it "child-safe".
Modeled the chain bits, and they're off to the printer.
CHAIN_ASSY.JPGCHAIN_00.jpg
 
The chain links printed OK, but I had to print a few of extra links to get the overall length to look right.
DSCI0954a.jpgDSCI0955a.jpg

Had to cut down the bar too, I guess the serious guesswork is done! :lol
DSCI0957a.jpg


Got to add most of the nuts & bolts, plus a makeshift pull cord mechanism.
DSCI0952a.jpgDSCI0958a.jpg
 
I ran into a small problem with the rivets - I couldn't press them enough to pop the studs without deforming the 3D printed parts. I'll be filing off protruding studs for weeks!

On the up-side, the chain drive works!
[video]https://www.facebook.com/ab.cruz.56/videos/1321454581332219/[/video]

I used a Tamiya 3-speed crank axle gearbox, set to 216:1 ratio.
DSCI0972a.jpg
 
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