The New Hotness

By the Universal Principle of the Conservation of Perversity, the base of the floor lamp just barely doesn’t fit under the edge of the Comfy Chair:

Floor Lamp - copper 70° elbow - installed — Floor Lamp – copper 70° elbow – installed

Well, I can fix that!

Lift Chair Foot - installed — Lift Chair Foot – installed

The feet descend from the fuzzy felt feet on the plant shelves, with the hex head socket transmogrified into a circle to match the chair feet. The support structure grew a flat plate to ensure it doesn’t pull loose from the platform:

Lift Chair Feet - solid model - support view — Lift Chair Feet – solid model – support view

Print ’em out, stick the felt in place:

Lift Chair Feet - assembly — Lift Chair Feet – assembly

Lift the chair (maybe with a small prybar atop some plywood to protect the floor), position the feet, lower gently: done!

While the M2 was warm, I ran off another set for the other Comfy Chair, just for symmetry.

The OpenSCAD source code as a GitHub Gist:

	// Feet for Pride lift chair
	// Ed Nisley KE4ZNU 2020-05

	Layout = "Build"; // [Show, Build]

	Support = true;

	//- Extrusion parameters must match reality!
	// Print with 2 shells and 3 solid layers

	/* [Hidden] */

	ThreadThick = 0.25;
	ThreadWidth = 0.40;

	HoleWindage = 0.2;

	Protrusion = 0.1; // make holes end cleanly

	inch = 25.4;

	//———————-
	// Dimensions

	/* [Dimensions] */

	ChairFootOD = 33.0;
	ChairFootRecess = 5.0;

	FeltOD = 39.0;
	FeltRecess = 2.5;

	FootPlate = 6*ThreadThick;
	FootWall = 4*ThreadWidth;

	FootOD = 2*FootWall + max(ChairFootOD,FeltOD);
	echo(str("Foot OD: ",FootOD));

	FootTall = ChairFootRecess + FootPlate + FeltRecess;
	echo(str(" … height: "),FootTall);

	NumSides = 9*4;


	//———————-
	// Useful routines

	module FootPad() {

	difference() {

	cylinder(r=FootOD/2,h=FootTall,$fn=NumSides);

	translate([0,0,FeltRecess + FootPlate])
	cylinder(d=ChairFootOD,h=2*ChairFootRecess,$fn=NumSides);

	translate([0,0,-Protrusion])
	cylinder(d=FeltOD,h=(FeltRecess + Protrusion),$fn=NumSides);

	}
	}


	//——————-
	// Build it…


	if (Layout == "Show")
	FootPad();

	if (Layout == "Build") {
	translate([0,0,FootTall])
	rotate([180,0,0])
	FootPad();
	if (Support)
	color("Yellow") {
	for (Seg=[0:5])
	rotate(30 + 360*Seg/6)
	translate([0,0,(ChairFootRecess – ThreadThick)/2])
	cube([(ChairFootOD – 3*ThreadWidth),
	2*ThreadWidth,
	(ChairFootRecess – ThreadThick)],
	center=true);
	rotate(180/6)
	cylinder(d=0.5*ChairFootOD,h=ThreadThick,$fn=6);
	}
	}

view raw Lift Chair Feet.scad hosted with ❤ by GitHub

The New Hotness

Pride Lift Chair: Fuzzy Felt Feet