Skip to content
Snippets Groups Projects
Commit 696c0bf7 authored by Quentin Bolsee's avatar Quentin Bolsee
Browse files

good progress on doc

parent a3fd6fdc
Branches
No related tags found
No related merge requests found
*.psd
# Beehive machine kit
# Beehive machine building kit
![](examples/linear_axis/img/axis.jpg)
......@@ -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.
![](./overview/beam.png)
### Endcaps
An endcap sits on the end of a beam and can join several of them.
![](./overview/endcap.png)
### 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:
![](./overview/bare_attachments.png)
They can be combined with an endcap to sit on the end of a beam, here are some examples:
![](./overview/combined_attachments.png)
### Interposers
Interposers sit between two attachments, and offer pass-through M5 holes with a 10mm spacing.
![](./overview/interposers.png)
### Carriage
A carriage sits on a beam and can slide onto it. They are typically carried by a string or a timing belt.
![](./overview/carriage.png)
## 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)
# Beehive linear axis example
![](img/axis.jpg)
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.
![](img/carriage.jpg)
At the bottom, 4 M5 nuts secure the derlin wheels:
![](img/carriage_under.jpg)
The motor is fastened on the motor attachment using 4 M3 screws.
![](img/motor.jpg)
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.
![](img/capstan_spacer.jpg)
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.
![](img/capstan.jpg)
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.
![](img/pulley.jpg)
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:
![](img/axis.jpg)
overview/bare_attachments.png

241 KiB

overview/beam.png

95.9 KiB

overview/carriage.png

234 KiB

overview/combined_attachments.png

268 KiB

overview/endcap.png

240 KiB

overview/interposers.png

88.7 KiB

# 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
![](../overview/beam.png)
### Endcaps
![](../overview/endcap.png)
### Attachments, bare
![](../overview/bare_attachments.png)
### Attachments, combined
![](../overview/combined_attachments.png)
### Interposers
![](../overview/interposers.png)
### Carriage
![](../overview/carriage.png)
File moved
File moved
File moved
File moved
File moved
0% Loading or .
You are about to add 0 people to the discussion. Proceed with caution.
Please register or to comment