Got the plans for the Hummer and it’s about time to give it a try.
There are some outstanding Hummer projects on here so have lots a great examples to look to for inspiration.
The first thing up for modding is going to be the wheels.
This is the main reason I’m building this, been wanting to make some of those mudder tires. LOL
I’m afraid I’m like Ducky there’s just something about a cool set a wheels!!!
What got me started was seeing a post about building the jig for the tires over at woodworkforums.
Here’s what it’s all about.
His jig and the one I made are based off the jig that comes with the Toys And Joys plans.
The miter gauge is set at 60 degrees for this project.
As always there’s a hundred ways to do this but this is just one of them.
First up is to build a toothed indexing wheel to be used to set the distance between the treads, this is the same size as the tire 4 1/4”
Here is the wheel and indexer taped together after the tread had been cut..
First copy, print, then cut the wheel pattern off the plans to some 3/4 plywood[I used particleboard don’t]and make a wheel pattern.
[The cuts for the treads are set for 10 degrees]
Then as you can see in the picture made a jig using my sliding fence, there is a hole drilled down through the top plywood brace into the center of the wheel pattern and a dowel is used to make a pivot point.
When I screwed the plywood down to the sled to hold the wheel bracket it was so tight that it was hard to turn the wheel for the next cut so worked out really nice and safe for the cutting.
Now with this set up you can cut the grooves for our indexing wheel.
Now make the 8 wheel halves and centers. [make extras]
Now some shots of the miter gauge set up.
Here you can see a bolt locked to the miter gauge arm so now you can place the indexing wheel we made and a wheel blank, lock them down to cut.
You can see above this is an indexing lock that works with the wheel we made to adjust where the treads will be cut.
The lock is adjustable so you can set how far it seats in the wheel.
[Remember when your setting up for the cut the center of the tire is what needs to center the blade]
If I do this again I’ll make the lock pointer smaller.
The numbers on the indexer are there to help me not miss any grooves.
You need to loosen the tire to move to the next groove so I used double sided tape to keep the tire and indexing wheels in line.
You may need to use a backer board to keep from having tearout.
I know there’s more that could be added but maybe this will help some one.
Tomorrow we’ll get to the fun stuff.
-- There's a hundred ways to do anything, alot depends on the tools at hand.