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15 commits
v2 ... main

12 changed files with 38036 additions and 995 deletions

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{
"board": {
"active_layer": 2,
"active_layer": 7,
"active_layer_preset": "",
"auto_track_width": false,
"hidden_netclasses": [],

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@ -440,6 +440,7 @@
"single_global_label": "ignore",
"unannotated": "error",
"unconnected_wire_endpoint": "warning",
"undefined_netclass": "error",
"unit_value_mismatch": "error",
"unresolved_variable": "error",
"wire_dangling": "error"

35707
48ish_soldered_cfx.kicad_pcb Normal file

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{
"board": {
"active_layer": 7,
"active_layer_preset": "",
"auto_track_width": true,
"hidden_netclasses": [],
"hidden_nets": [],
"high_contrast_mode": 0,
"net_color_mode": 1,
"opacity": {
"images": 0.6,
"pads": 1.0,
"shapes": 1.0,
"tracks": 1.0,
"vias": 1.0,
"zones": 0.6
},
"selection_filter": {
"dimensions": true,
"footprints": true,
"graphics": true,
"keepouts": true,
"lockedItems": false,
"otherItems": true,
"pads": true,
"text": true,
"tracks": true,
"vias": true,
"zones": true
},
"visible_items": [
"vias",
"footprint_text",
"footprint_anchors",
"ratsnest",
"grid",
"footprints_front",
"footprints_back",
"footprint_values",
"footprint_references",
"tracks",
"drc_errors",
"drawing_sheet",
"bitmaps",
"pads",
"zones",
"drc_warnings",
"drc_exclusions",
"locked_item_shadows",
"conflict_shadows",
"shapes"
],
"visible_layers": "ffffffff_ffffffff_ffffffff_ffffffff",
"zone_display_mode": 0
},
"git": {
"repo_type": "",
"repo_username": "",
"ssh_key": ""
},
"meta": {
"filename": "48ish_soldered_cfx.kicad_prl",
"version": 5
},
"net_inspector_panel": {
"col_hidden": [
false,
false,
false,
false,
false,
false,
false,
false,
false,
false
],
"col_order": [
0,
1,
2,
3,
4,
5,
6,
7,
8,
9
],
"col_widths": [
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0,
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0,
0,
0,
0,
0,
0
],
"custom_group_rules": [],
"expanded_rows": [],
"filter_by_net_name": true,
"filter_by_netclass": true,
"filter_text": "",
"group_by_constraint": false,
"group_by_netclass": false,
"show_unconnected_nets": false,
"show_zero_pad_nets": false,
"sort_ascending": true,
"sorting_column": 0
},
"open_jobsets": [],
"project": {
"files": []
},
"schematic": {
"selection_filter": {
"graphics": true,
"images": true,
"labels": true,
"lockedItems": false,
"otherItems": true,
"pins": true,
"symbols": true,
"text": true,
"wires": true
}
}
}

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@ -0,0 +1,658 @@
{
"board": {
"3dviewports": [],
"design_settings": {
"defaults": {
"apply_defaults_to_fp_fields": false,
"apply_defaults_to_fp_shapes": false,
"apply_defaults_to_fp_text": false,
"board_outline_line_width": 0.05,
"copper_line_width": 0.2,
"copper_text_italic": false,
"copper_text_size_h": 1.5,
"copper_text_size_v": 1.5,
"copper_text_thickness": 0.3,
"copper_text_upright": false,
"courtyard_line_width": 0.05,
"dimension_precision": 4,
"dimension_units": 3,
"dimensions": {
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"extension_offset": 500000,
"keep_text_aligned": true,
"suppress_zeroes": true,
"text_position": 0,
"units_format": 0
},
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"fab_text_thickness": 0.15,
"fab_text_upright": false,
"other_line_width": 0.1,
"other_text_italic": false,
"other_text_size_h": 1.0,
"other_text_size_v": 1.0,
"other_text_thickness": 0.15,
"other_text_upright": false,
"pads": {
"drill": 2.2,
"height": 3.8,
"width": 3.8
},
"silk_line_width": 0.1,
"silk_text_italic": false,
"silk_text_size_h": 1.0,
"silk_text_size_v": 1.0,
"silk_text_thickness": 0.1,
"silk_text_upright": false,
"zones": {
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}
},
"diff_pair_dimensions": [],
"drc_exclusions": [
[
"npth_inside_courtyard|151500000|111000000|7e3f9814-e570-4046-a4f4-bc5194edfca8|40cefe3d-76ed-4a8a-b837-001290e24f03",
"Pad near hole is fine actually"
]
],
"meta": {
"version": 2
},
"rule_severities": {
"annular_width": "error",
"clearance": "error",
"connection_width": "warning",
"copper_edge_clearance": "error",
"copper_sliver": "warning",
"courtyards_overlap": "error",
"creepage": "error",
"diff_pair_gap_out_of_range": "error",
"diff_pair_uncoupled_length_too_long": "error",
"drill_out_of_range": "error",
"duplicate_footprints": "warning",
"extra_footprint": "warning",
"footprint": "error",
"footprint_filters_mismatch": "warning",
"footprint_symbol_mismatch": "warning",
"footprint_type_mismatch": "warning",
"hole_clearance": "error",
"hole_to_hole": "warning",
"holes_co_located": "warning",
"invalid_outline": "error",
"isolated_copper": "warning",
"item_on_disabled_layer": "error",
"items_not_allowed": "error",
"length_out_of_range": "error",
"lib_footprint_issues": "warning",
"lib_footprint_mismatch": "warning",
"malformed_courtyard": "error",
"microvia_drill_out_of_range": "error",
"mirrored_text_on_front_layer": "warning",
"missing_courtyard": "ignore",
"missing_footprint": "warning",
"net_conflict": "warning",
"nonmirrored_text_on_back_layer": "warning",
"npth_inside_courtyard": "warning",
"padstack": "warning",
"pth_inside_courtyard": "warning",
"shorting_items": "error",
"silk_edge_clearance": "ignore",
"silk_over_copper": "ignore",
"silk_overlap": "ignore",
"skew_out_of_range": "error",
"solder_mask_bridge": "error",
"starved_thermal": "error",
"text_height": "warning",
"text_on_edge_cuts": "error",
"text_thickness": "warning",
"through_hole_pad_without_hole": "error",
"too_many_vias": "error",
"track_angle": "error",
"track_dangling": "warning",
"track_segment_length": "error",
"track_width": "error",
"tracks_crossing": "error",
"unconnected_items": "error",
"unresolved_variable": "error",
"via_dangling": "warning",
"zones_intersect": "error"
},
"rules": {
"max_error": 0.005,
"min_clearance": 0.0,
"min_connection": 0.0,
"min_copper_edge_clearance": 0.5,
"min_groove_width": 0.0,
"min_hole_clearance": 0.25,
"min_hole_to_hole": 0.25,
"min_microvia_diameter": 0.2,
"min_microvia_drill": 0.1,
"min_resolved_spokes": 2,
"min_silk_clearance": 0.0,
"min_text_height": 0.8,
"min_text_thickness": 0.08,
"min_through_hole_diameter": 0.3,
"min_track_width": 0.0,
"min_via_annular_width": 0.1,
"min_via_diameter": 0.5,
"solder_mask_to_copper_clearance": 0.0,
"use_height_for_length_calcs": true
},
"teardrop_options": [
{
"td_onpthpad": true,
"td_onroundshapesonly": false,
"td_onsmdpad": true,
"td_ontrackend": false,
"td_onvia": true
}
],
"teardrop_parameters": [
{
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"td_curve_segcount": 0,
"td_height_ratio": 1.0,
"td_length_ratio": 0.5,
"td_maxheight": 2.0,
"td_maxlen": 1.0,
"td_on_pad_in_zone": false,
"td_target_name": "td_round_shape",
"td_width_to_size_filter_ratio": 0.9
},
{
"td_allow_use_two_tracks": true,
"td_curve_segcount": 0,
"td_height_ratio": 1.0,
"td_length_ratio": 0.5,
"td_maxheight": 2.0,
"td_maxlen": 1.0,
"td_on_pad_in_zone": false,
"td_target_name": "td_rect_shape",
"td_width_to_size_filter_ratio": 0.9
},
{
"td_allow_use_two_tracks": true,
"td_curve_segcount": 0,
"td_height_ratio": 1.0,
"td_length_ratio": 0.5,
"td_maxheight": 2.0,
"td_maxlen": 1.0,
"td_on_pad_in_zone": false,
"td_target_name": "td_track_end",
"td_width_to_size_filter_ratio": 0.9
}
],
"track_widths": [],
"tuning_pattern_settings": {
"diff_pair_defaults": {
"corner_radius_percentage": 80,
"corner_style": 1,
"max_amplitude": 1.0,
"min_amplitude": 0.2,
"single_sided": false,
"spacing": 1.0
},
"diff_pair_skew_defaults": {
"corner_radius_percentage": 80,
"corner_style": 1,
"max_amplitude": 1.0,
"min_amplitude": 0.2,
"single_sided": false,
"spacing": 0.6
},
"single_track_defaults": {
"corner_radius_percentage": 80,
"corner_style": 1,
"max_amplitude": 1.0,
"min_amplitude": 0.2,
"single_sided": false,
"spacing": 0.6
}
},
"via_dimensions": [],
"zones_allow_external_fillets": false
},
"ipc2581": {
"dist": "",
"distpn": "",
"internal_id": "",
"mfg": "",
"mpn": ""
},
"layer_pairs": [],
"layer_presets": [],
"viewports": []
},
"boards": [],
"cvpcb": {
"equivalence_files": []
},
"erc": {
"erc_exclusions": [],
"meta": {
"version": 0
},
"pin_map": [
[
0,
0,
0,
0,
0,
0,
1,
0,
0,
0,
0,
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],
[
0,
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[
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[
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[
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],
"rule_severities": {
"bus_definition_conflict": "error",
"bus_entry_needed": "error",
"bus_to_bus_conflict": "error",
"bus_to_net_conflict": "error",
"different_unit_footprint": "error",
"different_unit_net": "error",
"duplicate_reference": "error",
"duplicate_sheet_names": "error",
"endpoint_off_grid": "warning",
"extra_units": "error",
"footprint_filter": "ignore",
"footprint_link_issues": "warning",
"four_way_junction": "ignore",
"global_label_dangling": "warning",
"hier_label_mismatch": "error",
"label_dangling": "error",
"label_multiple_wires": "warning",
"lib_symbol_issues": "warning",
"lib_symbol_mismatch": "warning",
"missing_bidi_pin": "warning",
"missing_input_pin": "warning",
"missing_power_pin": "error",
"missing_unit": "warning",
"multiple_net_names": "warning",
"net_not_bus_member": "warning",
"no_connect_connected": "warning",
"no_connect_dangling": "warning",
"pin_not_connected": "error",
"pin_not_driven": "error",
"pin_to_pin": "warning",
"power_pin_not_driven": "error",
"same_local_global_label": "warning",
"similar_label_and_power": "warning",
"similar_labels": "warning",
"similar_power": "warning",
"simulation_model_issue": "ignore",
"single_global_label": "ignore",
"unannotated": "error",
"unconnected_wire_endpoint": "warning",
"undefined_netclass": "error",
"unit_value_mismatch": "error",
"unresolved_variable": "error",
"wire_dangling": "error"
}
},
"libraries": {
"pinned_footprint_libs": [
"stuff"
],
"pinned_symbol_libs": [
"stuff"
]
},
"meta": {
"filename": "48ish_soldered_cfx.kicad_pro",
"version": 3
},
"net_settings": {
"classes": [
{
"bus_width": 12,
"clearance": 0.2,
"diff_pair_gap": 0.25,
"diff_pair_via_gap": 0.25,
"diff_pair_width": 0.2,
"line_style": 0,
"microvia_diameter": 0.3,
"microvia_drill": 0.1,
"name": "Default",
"pcb_color": "rgba(0, 0, 0, 0.000)",
"priority": 2147483647,
"schematic_color": "rgba(0, 0, 0, 0.000)",
"track_width": 0.2,
"via_diameter": 0.6,
"via_drill": 0.3,
"wire_width": 6
}
],
"meta": {
"version": 4
},
"net_colors": null,
"netclass_assignments": null,
"netclass_patterns": []
},
"pcbnew": {
"last_paths": {
"gencad": "",
"idf": "",
"netlist": "",
"plot": "/home/erin/Downloads/48ish-out",
"pos_files": "",
"specctra_dsn": "",
"step": "",
"svg": "",
"vrml": ""
},
"page_layout_descr_file": ""
},
"schematic": {
"annotate_start_num": 0,
"bom_export_filename": "${PROJECTNAME}.csv",
"bom_fmt_presets": [],
"bom_fmt_settings": {
"field_delimiter": ",",
"keep_line_breaks": false,
"keep_tabs": false,
"name": "CSV",
"ref_delimiter": ",",
"ref_range_delimiter": "",
"string_delimiter": "\""
},
"bom_presets": [],
"bom_settings": {
"exclude_dnp": false,
"fields_ordered": [
{
"group_by": false,
"label": "Reference",
"name": "Reference",
"show": true
},
{
"group_by": true,
"label": "Value",
"name": "Value",
"show": true
},
{
"group_by": false,
"label": "Qty",
"name": "${QUANTITY}",
"show": true
},
{
"group_by": false,
"label": "Description",
"name": "Description",
"show": true
},
{
"group_by": false,
"label": "JLCPCB Part Number",
"name": "JLCPCB Part Number",
"show": true
},
{
"group_by": true,
"label": "DNP",
"name": "${DNP}",
"show": true
},
{
"group_by": true,
"label": "Exclude from BOM",
"name": "${EXCLUDE_FROM_BOM}",
"show": true
},
{
"group_by": true,
"label": "Exclude from Board",
"name": "${EXCLUDE_FROM_BOARD}",
"show": true
},
{
"group_by": true,
"label": "Footprint",
"name": "Footprint",
"show": true
},
{
"group_by": false,
"label": "Datasheet",
"name": "Datasheet",
"show": true
},
{
"group_by": false,
"label": "Sim.Pins",
"name": "Sim.Pins",
"show": false
},
{
"group_by": false,
"label": "Sim.Device",
"name": "Sim.Device",
"show": false
},
{
"group_by": false,
"label": "#",
"name": "${ITEM_NUMBER}",
"show": false
}
],
"filter_string": "",
"group_symbols": true,
"include_excluded_from_bom": true,
"name": "",
"sort_asc": true,
"sort_field": "Reference"
},
"connection_grid_size": 50.0,
"drawing": {
"dashed_lines_dash_length_ratio": 12.0,
"dashed_lines_gap_length_ratio": 3.0,
"default_line_thickness": 6.0,
"default_text_size": 50.0,
"field_names": [],
"intersheets_ref_own_page": false,
"intersheets_ref_prefix": "",
"intersheets_ref_short": false,
"intersheets_ref_show": false,
"intersheets_ref_suffix": "",
"junction_size_choice": 3,
"label_size_ratio": 0.375,
"operating_point_overlay_i_precision": 3,
"operating_point_overlay_i_range": "~A",
"operating_point_overlay_v_precision": 3,
"operating_point_overlay_v_range": "~V",
"overbar_offset_ratio": 1.23,
"pin_symbol_size": 25.0,
"text_offset_ratio": 0.15
},
"legacy_lib_dir": "",
"legacy_lib_list": [],
"meta": {
"version": 1
},
"net_format_name": "",
"page_layout_descr_file": "",
"plot_directory": "",
"space_save_all_events": true,
"spice_current_sheet_as_root": false,
"spice_external_command": "spice \"%I\"",
"spice_model_current_sheet_as_root": true,
"spice_save_all_currents": false,
"spice_save_all_dissipations": false,
"spice_save_all_voltages": false,
"subpart_first_id": 65,
"subpart_id_separator": 0
},
"sheets": [
[
"e3c88f17-e431-4ad8-b491-c68f92a3599e",
"Root"
]
],
"text_variables": {}
}

View file

@ -1,17 +1,22 @@
all: plot-zip positions
gerbers:
kicad-cli pcb export gerbers 48ish_soldered.kicad_pcb --board-plot-params -o 48ish_soldered_out
kicad-cli pcb export gerbers 48ish_soldered.kicad_pcb --board-plot-params -o 48ish_soldered_out/mbk
kicad-cli pcb export gerbers 48ish_soldered_cfx.kicad_pcb --board-plot-params -o 48ish_soldered_out/cfx
drills:
kicad-cli pcb export drill 48ish_soldered.kicad_pcb --excellon-separate-th -o 48ish_soldered_out
kicad-cli pcb export drill 48ish_soldered.kicad_pcb --excellon-separate-th -o 48ish_soldered_out/mbk
kicad-cli pcb export drill 48ish_soldered_cfx.kicad_pcb --excellon-separate-th -o 48ish_soldered_out/cfx
positions:
kicad-cli pcb export pos 48ish_soldered.kicad_pcb --format csv --units mm --side back --smd-only -o 48ish_soldered-bottom-pos.csv
kicad-cli pcb export pos 48ish_soldered.kicad_pcb --format csv --units mm --side back --smd-only -o 48ish_soldered_mbk-bottom-pos.csv
kicad-cli pcb export pos 48ish_soldered_cfx.kicad_pcb --format csv --units mm --side back --smd-only -o 48ish_soldered_cfx-bottom-pos.csv
# replace headers with what jlcpcb wants - see https://jlcpcb.com/help/article/How-to-generate-the-BOM-and-Centroid-file-from-KiCAD
sed -e 's/Ref/Designator/' -e 's/PosX/Mid X/' -e 's/PosY/Mid Y/' -e 's/Rot/Rotation/' -e 's/Side/Layer/' -i 48ish_soldered-bottom-pos.csv
sed -e 's/Ref/Designator/' -e 's/PosX/Mid X/' -e 's/PosY/Mid Y/' -e 's/Rot/Rotation/' -e 's/Side/Layer/' -i 48ish_soldered_mbk-bottom-pos.csv
sed -e 's/Ref/Designator/' -e 's/PosX/Mid X/' -e 's/PosY/Mid Y/' -e 's/Rot/Rotation/' -e 's/Side/Layer/' -i 48ish_soldered_cfx-bottom-pos.csv
plot: gerbers drills
plot-zip: gerbers drills
zip -FSr 48ish_soldered_out.zip 48ish_soldered_out
zip -FSr 48ish_soldered_mbk_out.zip 48ish_soldered_out/mbk
zip -FSr 48ish_soldered_cfx_out.zip 48ish_soldered_out/cfx

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@ -1,10 +1,12 @@
# 48ish
A wireless, low-profile 47/48-key keyboard PCB.
A wireless, low-profile, 47/48-key keyboard PCB for Kalih Choc v1 switches, with variants for 18x17mm (MBK) or 17x17mm (CFX) keycap spacing.
![a thin rectangular keyboard with keys organized in a 12 by 4 grid, the bottom middle two keys joined in a single small spacebar. the board is held up in one hand, and has blank keycaps in white, green, and blue.](images/47.png)
## production files
works with JLCPCB, haven't tried any other production houses, ymmv
production files are uploaded [with each release](https://git.ewin.moe/erin/48ish). works with JLCPCB, haven't tried any other production houses, ymmv
production outputs automated with `just` (`apt install just` etc) and `kicad-cli` (it came free with your fucking kicad)
@ -14,9 +16,17 @@ production outputs automated with `just` (`apt install just` etc) and `kicad-cli
- BOM: `48ish_soldered_bom.csv` (not generated by kicad Yet:tm:; includes specific JLCPCB part numbers, you may want to shop around for alternatives)
- Placements: `48ish_soldered-bottom-pos.csv` (generated by kicad, with column names manually edited to reflect [JLCPCB's requirements](https://jlcpcb.com/help/article/pick-place-file-for-pcb-assembly))
## that sounds complicated but i still want one
hit me up on fedi [@erin@tired.umbreon.online](https://tired.umbreon.online/@erin) and i'll maybe do a custom build for you, if shipping you things from the united states isn't too complicated
## case???
[here's a basic one](case). the rendered stl file is attached to the latest release
## firmware???
i wrote a zmk shield for this but dude i am not figuring out the zmk local build steps. go look at [the github repo for the shield firmware](https://github.com/ewwwin/zmk-shield-48ish) and grab the firmware from the latest github actions run, i do not care
i wrote a zmk shield for this but dude i am not figuring out the zmk local build steps. go look at [the github repo for the shield firmware](https://github.com/ewwwin/zmk-keyboard-48ish) and grab the firmware from the latest github actions run, i do not care
## acknowledgements

76
case/48ish_case.scad Normal file
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$fn = 20;
baseplate_thickness = 2;
inner_clearance = 6.5; // space inside the case for the battery/mcu to occupy
pcb_thickness = 1.6; // thickness of the pcb
module roundsquare (size, r) {
translate([r, r]) minkowski() {
square([size.x-2*r, size.y-2*r]);
circle(r=r);
}
}
module shell () {
difference() {
// block
linear_extrude(baseplate_thickness + inner_clearance + pcb_thickness) {
translate([-1, -1]) roundsquare([214+1*2, 67+1*2], r=2+1);
}
// cut for shelf
translate([0, 0, baseplate_thickness + inner_clearance]) linear_extrude(pcb_thickness + 2) {
roundsquare([214, 67], r=2-0.25); // pcb r=2 but it's not exact
}
// cut for inner clearance
translate([0, 0, baseplate_thickness]) linear_extrude(inner_clearance + 10) {
translate([1, 1]) roundsquare([214 - 1 * 2, 67 - 1 * 2], r=1);
}
}
}
module standoffs () {
// for M2 3x3 standoffs
hole_diameter = 3;
hole_depth = 3 * 1.5;
wall_thickness = 1;
// offsets the top of the standoffs down from where the pcb will actually rest; this allows the screws to actually hold the pcb down against the outer lip of the case and prevent rattling if the pcb is not perfectly flat
standoff_top_face_offset = -0.25;
for (point = [
[17 + 18 * 0, 16.5 + 17 * 0],
[17 + 18 * 2, 16.5 + 17 * 2],
[17 + 18 * 4, 16.5 + 17 * 0],
[17 + 18 * 5, 16.5 + 17 * 2],
[17 + 18 * 6, 16.5 + 17 * 0],
[17 + 18 * 8, 16.5 + 17 * 2],
[17 + 18 * 10, 16.5 + 17 * 0],
]) {
translate([point.x, point.y, baseplate_thickness - 0.01]) difference() {
cylinder(h = inner_clearance + standoff_top_face_offset + .01, d = hole_diameter + 2*wall_thickness);
translate([0, 0, inner_clearance + standoff_top_face_offset + .1 - hole_depth]) cylinder(h = hole_depth + .02, d = hole_diameter); // hole inner - adjust for insert size
}
}
}
difference() {
shell();
translate([2, 65-.01, baseplate_thickness])
// cube([34, 2, 30]);
// cube([34, 5, 6]);
cube([18+17-2, 2, 30]);
// usb-c cutout
translate([17 + 18/2 - 9/2, 71, baseplate_thickness + inner_clearance - 6.5]) {
rotate([90, 0, 0]) linear_extrude(8) {
roundsquare([9, 3.75], r = 1.5);
}
}
// power switch cutout
translate([4, 71, baseplate_thickness + inner_clearance - 2]) {
rotate([90, 0, 0]) linear_extrude(8) {
roundsquare([6.5, 2], r = 0.5);
}
}
}
standoffs();

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