diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000000000000000000000000000000000000..fcd3efb63d26718042c46d2a835a68e91382894f --- /dev/null +++ b/.gitignore @@ -0,0 +1 @@ +*.psd diff --git a/README.md b/README.md index 3688f7bb8cadc879191e1f30c54c545e97594c28..3b2790f37d46906c5b0f8eda450b919f80d28237 100644 --- a/README.md +++ b/README.md @@ -1,4 +1,4 @@ -# Beehive machine kit +# Beehive machine building kit  @@ -12,14 +12,64 @@ The project is named after the grid of holes that can either be busy or free, mu ## Terminology +### Beam + +A beam serves as a linear structural element, as well as a guide for a linear motion system. Standard 20mm alluminum extrusions are compatible, but you can also choose to 3D print your own custom beam. + + + ### Endcaps +An endcap sits on the end of a beam and can join several of them. + + + ### Attachments +Attachments offer specific functionality (e.g. hosting a motor, a pulley or a toolhead) and offer a grid of M5, 10mm spaced hole for easier composability: + + + +They can be combined with an endcap to sit on the end of a beam, here are some examples: + + + ### Interposers +Interposers sit between two attachments, and offer pass-through M5 holes with a 10mm spacing. + + + +### Carriage + +A carriage sits on a beam and can slide onto it. They are typically carried by a string or a timing belt. + + + ## Dimensions ### Grid of holes +The grid of hole present on any attachment is an M5, 10mm spacing grid. + ### Endcaps + +The end of a beam presents a docking zone for an endcap, following these rules: + +- 30mm length +- Two M5 pass-through holes, distanced by 12mm +- Three faces present M5 holes, one doesn't + +Endcaps can use any of the 6 holes for fastening. + +## Example + +A complete implementation of a linear axis is presented [here](./examples/linear_axis) + +## Files + +The files can be found [here](./parts), provided in the following format: + +- Fusion archive (.f3d) +- Step file (.step) +- 3D print file (.stl) diff --git a/examples/linear_axis/README.md b/examples/linear_axis/README.md index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..043b8df7cd614a270a35130493087b3cf3520021 100644 --- a/examples/linear_axis/README.md +++ b/examples/linear_axis/README.md @@ -0,0 +1,69 @@ +# Beehive linear axis example + + + +This quick guide provides a recipe for a simple linear axis, given the kit parts provided [here](../../parts). + +## Bill of Materials + +Attachments: + +- 1x `motor_endcap_short` +- 1x `55x55x35_endcap_short` + +Carriage and beam: + +- 1x `carriage_string` +- 120mm long, 20x20mm extrusion + +Interposers (feet): + +- 2x `inter_40mm_90` + +String carriage specific: + +- 1x `pulley` +- 1x `capstan_pulley` +- 1x `capstan_motor` +- 1x `capstan_holder` + +Hardware: + +- 5x 40mm M5 socket head +- 15x 10mm M5 socket head +- 8x 8mm M3 button head +- 5x M5 nuts +- 2x M3 nuts +- 4x Derlin V-wheel +- 3x 608ZZ bearing +- 6x T-slot nuts or M5 nuts (for a printed beam) + +## Assembly + +The carriage is the first part to go on the beam. Two M3 screws are used to attach the string ends; for now only one of them should be fastened. + + + +At the bottom, 4 M5 nuts secure the derlin wheels: + + + +The motor is fastened on the motor attachment using 4 M3 screws. + + + +For the capstan pulley that sits next to the motor shaft, you should insert two 608ZZ bearings separated by the spacer, this prevents excessive compression on the bearing pair. + + + +The string is wrapped bottom to top. It's easier to mount the capstan support structure only at the end. Note the two M3 screws + nuts that fasten the motor's capstan to the shaft. + + + +On the other end, the pulley is assembled by press-fitting a 608ZZ bearing and assembling the pulley holder onto the grid of holes. Note the slots for tensioning as the last step. + + + +The complete axis should look something like this after adding the feet. Note how the free side of the string passes through the hole embedded within the carriage: + + diff --git a/overview/bare_attachments.png b/overview/bare_attachments.png new file mode 100644 index 0000000000000000000000000000000000000000..49c9e555545df4af6c8dd1998f82ae19f0e7b599 Binary files /dev/null and b/overview/bare_attachments.png differ diff --git a/overview/beam.png b/overview/beam.png new file mode 100644 index 0000000000000000000000000000000000000000..917fffb0dac18ee213b25b50edafdcc9e8b4ea79 Binary files /dev/null and b/overview/beam.png differ diff --git a/overview/carriage.png b/overview/carriage.png new file mode 100644 index 0000000000000000000000000000000000000000..864fa071ffd3865fa8531add0a6db15e386d4a25 Binary files /dev/null and b/overview/carriage.png differ diff --git a/overview/combined_attachments.png b/overview/combined_attachments.png new file mode 100644 index 0000000000000000000000000000000000000000..39497ff113992373f4090f868d99c37e88278666 Binary files /dev/null and b/overview/combined_attachments.png differ diff --git a/overview/endcap.png b/overview/endcap.png new file mode 100644 index 0000000000000000000000000000000000000000..f2482cdc524081949c330680e52f1d3f591614a4 Binary files /dev/null and b/overview/endcap.png differ diff --git a/overview/interposers.png b/overview/interposers.png new file mode 100644 index 0000000000000000000000000000000000000000..1064689fb9b743fff5e109a2a8260ddb07c57093 Binary files /dev/null and b/overview/interposers.png differ diff --git a/parts/README.md b/parts/README.md new file mode 100644 index 0000000000000000000000000000000000000000..73ca3cac851e076b7cd30e4ebc06ea7490e6a3af --- /dev/null +++ b/parts/README.md @@ -0,0 +1,39 @@ +# Beehive machine building kit: parts + +## Guide + +Here you can find the files for the whole kit, structured as follows: + +- **bare_endcaps**: endcaps for all types of beam-beam joinery +- **beam**: 20mm extrusion, 3D printed substitutes +- **carriages**: wheel-based carriage that slides on a beam +- **bare_attachments**: Attachments that can mount on endcaps or carriages +- **combined_attachments-endcaps**: combination of an endcap and an attachment (not all combinations are present here) +- **interposers**: joinery for the M5, 10mm spacing hole grid +- **capstan_mtion**: anything related to string-based motion + +## Overview + +### Beam + + + +### Endcaps + + + +### Attachments, bare + + + +### Attachments, combined + + + +### Interposers + + + +### Carriage + + diff --git a/parts/beam/beam.f3d b/parts/beam/20x20_beam.f3d similarity index 100% rename from parts/beam/beam.f3d rename to parts/beam/20x20_beam.f3d diff --git a/parts/beam/beam.step b/parts/beam/20x20_beam.step similarity index 100% rename from parts/beam/beam.step rename to parts/beam/20x20_beam.step diff --git a/parts/beam/beam.stl b/parts/beam/20x20_beam.stl similarity index 100% rename from parts/beam/beam.stl rename to parts/beam/20x20_beam.stl diff --git a/parts/interposers/40mm_90.f3d b/parts/interposers/inter_40mm_90.f3d similarity index 100% rename from parts/interposers/40mm_90.f3d rename to parts/interposers/inter_40mm_90.f3d diff --git a/parts/interposers/40mm_90.step b/parts/interposers/inter_40mm_90.step similarity index 100% rename from parts/interposers/40mm_90.step rename to parts/interposers/inter_40mm_90.step diff --git a/parts/interposers/40mm_90.stl b/parts/interposers/inter_40mm_90.stl similarity index 100% rename from parts/interposers/40mm_90.stl rename to parts/interposers/inter_40mm_90.stl