bss/buildable-stick-system
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retain a bit of the inner wall on the outer piece for windowed pieces

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the inner wall piece being the *whole* inner wall of the frame side
meant that the (now relatively thin) outer wall piece was not supported
by anything on the top and bottom, which combined with the already weak
piece because of the window, gave the edges a lot of give.

shrinking the inner wall piece slightly retains some of the material on
the outer piece, which should friction fit the top and bottom with both
the inner wall piece, and with the panels, leading to a lot more clamp
when everything is secured.

Signed-off-by: Brian S. Stephan <bss@incorporeal.org>
This commit is contained in:
Brian S. Stephan 2024-07-14 09:28:10 -05:00
parent ba3e77d0cd
commit e426e15884
Signed by: bss
GPG Key ID: 3DE06D3180895FCB
3 changed files with 10 additions and 2 deletions
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3
src/frames/pieces/box/front-or-back-inner-wall.scad
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@ -17,7 +17,8 @@ module mount_column_cutout() {
module front_or_back_inner_wall_frame_base_piece() {
difference() {
front_or_back_box_frame_piece();
// Z is scaled so that some part of the original part inner wall is retained
scale([1, 1, inner_frame_z_decorative_scale]) front_or_back_box_frame_piece();
// minus the outer wall
translate([0, -(frame_y-frame_wall)/2, 0]) cube([frame_x, frame_wall, frame_z], center=true);
// minus half of the mounting posts (the other half provided by the outer wall)

3
src/frames/pieces/box/side-inner-wall.scad
View File

@ -17,7 +17,8 @@ module mount_column_cutout() {
module side_inner_wall_frame_base_piece() {
difference() {
side_box_frame_piece();
// Z is scaled so that some part of the original part inner wall is retained
scale([1, 1, inner_frame_z_decorative_scale]) side_box_frame_piece();
// minus the outer wall
translate([-(frame_x-frame_wall)/2, 0, 0]) cube([frame_wall, frame_y, frame_z], center=true);
// minus half of the mounting posts (the other half provided by the outer wall)

6
src/parameters.scad
View File

@ -75,6 +75,12 @@ panel_z = 5;
// inside the frame
inner_frame_z = frame_z - (panel_z * 2);
// "windowed" pieces chop out the inner wall of the frame as a separate piece in order
// to print it a different color/way/style. to improve friction fit, it is only the below
// value scale of the whole wall, so that the rest of the wall is retained on the outer
// piece, which helps clamp the two together (and helps the panels clamp it all)
inner_frame_z_decorative_scale = 0.95;
// how much the top plate x/y is expanded to overhang the frame
// note that this is relative to the top plate (so the wall is added back)
panel_overhang_amount = 8.5;