Gellis apps

Segmental Bend Developer

As a fabricator of 40+ years, the last 30 or so as the workshop manager, I have constantly used trigonometry etc. to calculate cones,...

July 22, 2020 By Gellis apps

Offset Branch Developer

As a fabricator of 40+ years, the last 30 or so as the workshop manager, I have constantly used trigonometry etc. to calculate cones,...

July 22, 2020 By Gellis apps

Angled Branch Pipe Developer

As a fabricator of 40+ years, the last 30 or so as the workshop manager, I have constantly used trigonometry etc. to calculate cones,...

July 15, 2020 By Gellis apps

Rectangular Hopper developer

Sheet metal developing tool for square and rectangular hoppersAs a fabricator of 40+ years, the last 30 or so as the workshop manager,...

May 31, 2020 By Gellis apps

Fabricators Handbook

Sheet metal pattern development tools for cones, segmental bends, set on pipes.Plus flange/ tube tables, various calculators and more.This...

January 25, 2020 By Gellis apps