These drawings and the designs they embody are copyright. The copyright owner is John Storrs. You may freely copy, modify, and realize them in manufacture without license fee. You are asked to acknowledge the source of the designs in publications about a realization. You are encouraged to suggest improvements.
These drawings and designs are made available in the hope that they will be useful, WITHOUT WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
Three 2D CAD packages were considered for the project: AutoCAD, SiscadP, and TurboCAD. AutoCAD is well known, defines the functionality expected of 2D CAD packages, and is expensive. SiscadP is an unsupported free demo package from Staedtler which runs under Linux. You can't do much with it because of built-in limits on drawing size. TurboCAD is an AutoCAD competitor at a small fraction of the price. After evaluating these systems, we chose TurboCAD. If you are seriously interested in the project drawings we suggest you get it. It is cheap enough to justify the cost even if you only use it for printouts or transferring drawings as dxf files to other cad systems. Note that we are now using the much improved TurboCAD Version 4, which has a different native file format to Version 3. You need Version 4 to read the drawings in the archive below.
We use a naming and numbering system which distinguishes items (eg
assemblies, components and other logical elements) from views of those
items. Items, organised in a composition-based tree, are primary. Views of
items, organised in separate trees usually containing only one or two nodes,
are secondary. The aim of the system is to accommodate different versions of
items and of views, which can be identified in the traditional way with letter
suffixes. Item and view numbers consist of digits separated by '.', reflecting
the hierarchical position of the elements. Drawing identifiers are a
combination of item and view identifiers, separated by '-'. Here is the
current item tree in outline:
1 overviews
2 leg assembly
2.1 drive unit
2.2 ballscrew unit
2.3 ballnut unit
2.4 top unit
3 universal joints
3.1 bottom joint
3.2 top joint
3.3 common parts
4 platform
5 frame
6 bed
7 spindle
8 tooling
9 jigs
10 enclosure
18 control
19 software
A visual standard for text heights, line widths, etc has been set which gives good results on both screen and paper. For convenience, drawings show total quantities of items required for a single machine. Where there are several drawings of an item, the quantity is given in the first only. Here is an archive of the current drawings - you will need TurboCAD Version 4 to do anything with them. Be warned that everything is subject to change.
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12.7.97.zip (1.6Mb) | Archive of current drawings. |
The only overview currently available is the ray traced image on the LME Hexapod Machine main page.
2.1 Drive Unit
2.1-1 drive unit-schematic
2.1.1-1 drive motor-side view
2.1.1-2 drive motor-end view
2.1.2-1 drive housing-side views
2.1.2-2 drive housing-end views
2.1.3-1 drive locator
2.1.4-1 drive shaft
2.1.6-1 driver pulley
2.1.7-1 drive belt
2.1.8-1 pulley nut
2.2 Ballscrew Unit
2.2-1 ballscrew unit-schematic
2.2.1-1 main housing-side views
2.2.1-2 main housing-end views
2.2.2-1 outer tube
2.2.3-1 ballscrew
2.2.4-1 driven pulley
2.2.5-1 bearing spacer
2.2.7-1 bearing retainer
2.2.8-1 slider
2.2.9-1 slider nut
2.3 Ballnut Unit
2.3.1-1 inner tube
2.3.2-1 bottom mounting
2.3.3-1 ballnut
2.3.4-1 ballnut retainer
2.3.5-1 ballnut locator
2.4 Top Unit
2.4.1-1 pulley housing-side views
2.4.1-2 pulley housing-end views
2.4.2-1 drive mounting
3.1 Bottom Joint
3.1-1.1 bottom joint-view 1
3.1-1.2 bottom joint-view 2
3.1-1.3 bottom joint-view 3
3.1-1.4 bottom joint-view 4
3.1.1-1 inner pivot
3.1.2-1 outer pivot
3.1.4-1 inner yoke
3.1.5-1 outer yoke
3.1.6-1 inner retainer
3.1.7-1 outer retainer
3.2 Top Joint
3.2-1.1 top joint-view 1
3.2.1-1 yoke pivot
3.3 Common Parts
3.3.1-1 main ring
3.3.2-1 base pivot
4-1 platform-plan
4-2 platform-section
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LME Hexapod Machine | |
Laboratory For Micro Enterprise |
