Another ATSF Admirer

Helix Construction, Screwing it all together

Screwed supports to base. Screwed spiral ramp to supports. Gave up on the fancy around-corners flexible drill extension; as it just can't apply enough torque to the target to be useful. So the Support to Base screws are all on angles to fit the drill in the gaps

Helix Construction, Screwing it all together
Another ATSF Admirer, May 24, 2008