Organize documentation and files

Basic_tools/README.md

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+Basic tools
+-----------
+
+**File: `vacuum_adaptor.scad`**
+
+For adapting a vacuum hose to an inlet of a different size.
+
+**File: `water_shutoff_handle_v1.scad`**
+
+For putting over the thin metal handle on the shutoff valve on our water
+meter, to give better leverage.
+

Cardboard_perforator/README.md

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+Cardboard perforator
+--------------------
+
+**File: `cardboard_packing_roller.scad`**
+
+The bits and pieces to construct a machine that can perforate a piece of
+standard box cardboard such that it can then be scrunched up and used as
+packing for things being sent by post.
+

Dust_extraction/README.md

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+Dust extraction
+---------------
+
+**File: `cone_adapter.scad`**
+
+An adapter to go from the 100mm PVC pipe I use for my dust extraction system
+to Marius Hornberger's excellent flexible (but 90mm) dust extractor parts.
+
+**File: `cyclone_separator_base.scad`**
+
+An attempt at making a cyclonic dust separator in OpenSCAD.  Not very good.
+
+**File: `dust_extractor_adapter.scad`**
+**File: `square_to_circle_poly_generator.py`**
+
+The `square_to_circle_poly_generator.py` program generates a `polyhedron` that
+smoothly blends a rectangle into a circle across a given height.
+
+The `dust_extractor_adapter.scad` file integrates a basic version of this
+with the inlet and outlet parts that would attach to my Carbatec 2HP dust
+extractor outlet.
+
+**File: `dust_extractor_rectangular_adapter.scad`**
+
+This is an alternate idea for an outlet adapter for the Carbatec dust
+extractor, where the 'pipe' stays rectangular but curves around from vertical
+to horizontal in 22.5 or 30 degree steps.
+
+**File: `dust_separator_inlet.scad`**
+
+Another idea for a dust separator, based on the horizontal cyclonic separator
+idea.  This would allow the tube from the Carbatec to go into the horizontal
+separator tube at 45 degrees, to form the cyclone without extra vanes.
+
+**File: `impeller_basic.scad`**
+
+A basic attempt at designing a compressor impeller in OpenSCAD.
+
+**File: `lathe_extractor_fan_v1.0.scad`**
+
+A fan blades and housing, designed to attach to the housing and drive shaft
+of a Vicmarc VL240 lathe.  This adds a modest extra source of dust capture
+and movement on the lathe itself, without other equipment.
+
+**File: `spiral_dust_collector_support_slivers_v1.scad`**
+
+Experimenting with parts to support the spiral in a cyclonic separator
+replacement for my current inefficient Carbatec separator.
+

EV_Charging/README.md

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+EV Charging
+-----------
+
+Parts for holding EV charger connectors and EVSEs.
+
+**File: `charger_cable_holder_v1.scad`**
+
+The basic part for a piece that the base of an EV charger connector could sit in.
+

GridFinity_tools/README.md

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+GridFinity tools
+----------------
+
+I use the GridFinity reworked OpenSCAD library for actual baseplates and
+boxes.  These are the tools I've made to place the magnets in them.
+
+**File: `6x2_magnet_all_in_one.scad`**
+**File: `6x2_magnet_dispenser.scad`**
+**File: `6x2_magnet_placer_v1.scad`**
+**File: `6x2_magnet_placer_v2.scad`**
+

Oddments/README.md

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+Oddments
+--------
+
+Things I've made that don't really have a good home anywhere else.
+
+**File: `cable_patch_end_clip_v1.scad`**
+**File: `cable_patch_end_clip_v2.scad`**
+
+Clips for a 12-port Cat-5 patch bay that don't get in the way of the cables
+to be attached.
+
+**File: `cupcake_holder_plate.scad`**
+**File: `cupcake_holder.scad`**
+
+Two different systems for pieces that go in a standard food container and
+prevent cupcakes or muffins from moving around and destroying themselves when
+in transit.
+
+**File: `downpipe_mount.scad`**
+
+A piece that lifts the mount for the downpipe to our eastern water tank up so
+that the pipe itself sits higher than the sieve.
+
+**File: `garden_bed_hose_guide.scad`**
+
+A piece that could be printed in two parts that locked together, such that it
+could sit on the side of a garden bed wall and guide a hose without kinking.
+
+**File: `organza_bag_funnel.scad`**
+
+A basic funnel, designed for filling the specific organza bags I use to sell
+camphor laurel and huon pine shavings.
+
+**File: `red_hat_service_award_holder.scad`**
+
+For those in Red Hat who have received their five and ten year 'puck', this
+is a much more stable base for it.  The award won't fall out easily and it
+fits it perfectly.  Best printed in red, obviously.
+
+**File: `rob_food_processor_lid.scad`**
+
+A replacement lid for a friend's food processor.
+
+**File: `rounded_square_twist_vase.scad`**
+
+Using the example of the `offset` 2D function and twist in `linear_extrude`
+to make some interesting simple vases.  Best with rainbow, bi-colour or
+tri-colour filament.
+
+**File: `thundersky_battery_handle_v1.scad`**
+
+A handle to fit on ThunderSky / Winston Energy 60AH LiFePO4 cells, so that
+the pack can be lifted as a whole.  Currently contains the `pinch` function
+for operating on lists of 2D points.
+
+**File: `tickety_boo_sign.scad`**
+
+For indicating to other people whether everything is tickety-boo or not.
+
+**File: `tile_cutter_anvil.scad`**
+
+A replacement anvil for the tile cutter my partner uses for breaking mosaic
+tiles.
+
+**File: `trailer_towball_filler.scad`**
+
+A part that can fit in a trailer towball hitch, and be locked in place, so
+that no-one else can tow the trailer.
+
+**File: `trevor table foot v1.0.scad`**
+
+A replacement for a table foot for a friend.
+
+**File: `urban_500_mount.scad`**
+
+A mount for the Urban 500 bicycle light.
+

PCB_cases/README.md

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+PCB cases
+---------
+
+Cases I've made for putting various small PCBs in.
+
+**File: `badger_temp_sensor_case.scad`**
+
+For the Badger 2040 W badge with Raspberry Pi 2040 plus eInk screen.
+
+**File: `caberqu C2C tester case.scad`**
+
+For the caberQU C2C USB C cable tester.
+
+**File: `diagonal_box.scad`**
+
+For a board I can't seem to find any more.
+
+**File: `LCA 2021 conference badge case.scad`**
+
+For the LCA 2021 hardware BOF conference badge.  Very incomplete.
+
+**File: `quad_usb_box_base.scad`**
+**File: `quad_usb_box.scad`**
+
+The parts for a four-port USB charger board enclosure.
+

Primitive_and_building_block_libraries/README.md

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+Primitive and building block libraries
+--------------------------------------
+
+These are the basic functions I use for most of my other modelling.
+
+**File: `pwlib_boards.scad`**
+
+Functions to generate cases for PCBs.
+
+**File: `pw_primitives.scad`**
+
+Functions:
+
+ -  `rounded_cube(x, y, z, chamfer_rad)`
+
+**File: `gears.scad`**
+
+A borrowed gears library.  Source: https://github.com/chrisspen/gears
+

Test_pieces/README.md

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+Test pieces
+-----------
+
+Mainly used when I'm trying out ideas before I put them in my libraries.
+
+**File: `conduit_angle_bend.scad`**
+**File: `conduit_angle_bend_toroidal.scad`**
+
+Work on angled bends that can attach to standard PVC piping.
+
+**File: `spring_tests.scad`**
+
+Testing out both straight and circular 'springs' that use a zig-zag
+construction.  Best printed so that each layer goes along the zig-zag, rather
+than the zig-zag going up and down across layers.
+
+**File: `tap_handle.scad`**
+
+Experimenting with modules that can make tap handles with a shaft and a
+number of 'lobes'.
+
+**File: `y_tube.scad`**
+
+A Y join in a pipe, made out of toroid segments.
+

Woodworking_and_workshop_tools/README.md

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+Woodworking and workshop tools
+------------------------------
+
+**File: `masonry_drill_rack_v1.0.scad`**
+
+A basic block to store the masonry drills I have.
+
+**File: `oscillating_sander_vacuum_adapter.scad`**
+
+An adapter that fits on the side of the AEG oscillating power sander and
+directly connects to a vacuum hose for a workshop vacuum cleaner.
+
+**File: `trend_airshield_battery_pack.scad`**
+
+Still early experiments on making a replacement for the Trend AirShield Pro
+battery.  The idea is to build in a LiPo pouch cell, a USB charger board, and
+possibly a regulated 3.6V output board.
+
+**File: `vicmarc_chuck_gauge_v1.scad`**
+
+Simple pieces that show the inside and outside dimensions of Vicmarc lathe
+chuck jaws, at their minimum and maximum extend (i.e. narrowest and widest).
+Includes writing the dimensions and the chuck 'number'.
+