Not sure if this is the place for this but anyway, I started a Havoc project.
Let start with some aluminum plats and some tubing.
Make a fixture for the plates ....
Let mill the outer side and put some holes in the plate.
Now set the tubes in the plates.
Put the other plate on ....
Back cover for the tubes
Front cover
Set in place for trail fit
Small up date.
We did a trail fit to see how things are working...
Just in case we need to do a clean out ....
Now this was a trail fit only ....
Ken W