Yak - Yet another keyholder (Parametric) by roemsi

Last crawled date: 3 years, 3 months ago

There a multiple wonderful designs for the same, but no one fits for me, I created a parametric one with openscad.
ENJOY have fun, use it as a present or for your own keys, and please share your designs - I'll love to see the different variations and modifications.
The added stls are for the LARGE (100x30mm) version, anyway, the comments in the scad files and below, are showing my estimated values for regular and X-Large. I've just printed the Large version, so you may need to modify the values.
Changing the values for length and width should be enough. Everything should fit.
The values for the screws and nuts are for M3.
There are two openscad files:
The main one is Key_Holder.scad executed, it will create both halfes of the design, ready to export as stl for printing.
To customize, there are following parameters:
$length_mm = 100; //regular = 78, large = 100, x-large = 120
$width_mm = 30; //regular = 24, large = 30, x-large = 36
$height_mm = 8; //
$height_shape_factor = 1;// radius on the side = height_mm divided by this factor. 1 = round new
$round_corner_rad = 1; // increasing will round the corners more
$finger_cutout_rad = $width_mm/4; //auto calc by width, but can be modified
$keyringhole_outer_dia = 8; // keyring outer diameter
$keyringhole_inner_dia = 4; //keyring inner diameter
$screws_dia = 3.3; // diameter for the screws
$screws_head_dia = 5.8; //diameter of the screws head
$screws_head_height = 2; // height of the screws head
$nuts_outer_dia = 6.3; // diameter of the nuts, (corner to corner)
$nuts_height = 2.5; // height of the nuts
$svg_filename_for_design = "deer.svg";
$design_bump = 0.4; // bump of the design
$desing_x_offset = 0; // x offset from the middle
$desing_y_offset = 28; // y offset from the middle
$design_resize = 22; // resize to fit on the part
$design_rotate = 0; // rotate the design (degree)
The Key_Spacer.scad parameters for the spacers:
$outer_diameter_mm = 14;
$inner_diameter_mm = 3.3; //should be the dia of the used screws
$height_mm = 1; // height for the space
$number_of_spacers = 5; //if you want to create more increase
$key_hole_diameter_mm = 6.4; // the diameter of key ring hole of key. !!! Set to 0 if you don't want it !!!!
$key_height_mm= 2; //the height of the key, so the key ring hole is filled.
UPDATE 11/14/20 Part 2
New part for your Keyholder. I need to carry small parts with me, like micro sdcards. So I added another useful tool. the Carry Key. The STL is available, and also the Scad file Carry_key.scad:
$fn = 50;
$used_keyholder_length= 100; // enter your keyholder length, to calculate the length of the cart key.
$height_mm = 2; //height of the part (w.o. the cover)
$cover_height_mm = 0.5; // height of the cover
$wall_width_mm = 0.5; // wall/perimeter, also used for the bottom of the part.
$outer_width_mm = 12; // outer width dimension
$mount_hole_dia_inner = 3.3; // should be the same diameter as used for $screws_dia in Key_holder.scad
But be careful when you design it too thin it may break, and you will lose your small gems.
BTW: For all designs here:
I think it goes without saying, but I am not responsible for any lost or damaged items.
UPDATE 11/14/20
Added a new parameter to manipulate the radius of the sides by a factor. $height_shape_factor, is by default 1 means the radius of the edge is the height/1, if you set the factor to 2, it is height/2 so it gets more edgy, by 3 its my favorite. ;-)
I also added a shopping cart key, but because of lockdown, I was not able to test it
ShoppingCart_Key.scad
$coin_Diameter = 23.2; //23.2
$coin_Height = 2.3; //2.3
$used_keyholder_length= 100; // enter your keyholder length, to calculate the length of the cart key.
$mount_hole_dia_inner = 3.3; // should be the same diameter as used for $screws_dia in Key_holder.scad
$mount_hole_dia_outer = 16; // ~ 10 mm is a good value
UPDATE 11/10/20
Because everyone has a darkside, I added a dark vader themed design.
Other Files:
Key_Holder_deer.stl ... Large version with deer design
Key_Holder.stl ... Large version blank
Key_Spacer.stl ... 5 spacers (14mm/3.3mm x 1mm)
Key_Spacer_withKeyguard.stl ... 5 spacers (14mm/3.3mm x 1mm) and key guard with 6.4mm
deer.svg ... svg stencil deer for demo design
vader.svg ... svg stencil vader
Kex_Holder_vader.stl ... vader themed large version
credits for the nice Yak on the first photo to https://www.flaticon.com/free-icon/yak_1998812
Ps: Yes, I've only this one key. :-)