Mini Belay Portaledge
Based on the D4 MiniMe ledge, and the D4 open source bullet joiners, I created a super lightweight aluminum mini portaledge for multipitch projecting comfort. In the spirit of open source design, I have shared all my materials and learnings below for further community iterations! If you take on a build yourself, I'd be happy to provide further tubing bend dimensions and other pattern information.
Design Features:
UL Aluminum Tubing Platform - 24 inch x 36 inch deployed size at 3.1lbs (3.4 lbs including haul bag)
3D printed nylon bullet jointers (variant of D4 open source design), press fit interface to 1" OD end tubes (Download my STL file here)
Shock corded tube overlap interfacing, based on stock 6061-T6 tubing sizes
Lightweight strap and buckle system - 3/4" Polypro webbing and double back steel triglides save weight over standard portaledge 1" steel cam buckles
Required Tools for Construction:
Tubing bender with capacity to 1" OD - Version I used here
Hand Riveter
Tube cutter with capacity to 1.125" OD (or band/miter saw)
Deburring Tool, or File
HD Sewing machine (Capacity for ~TEX60 thread)
Project Detail Photos:
