Huxley Seedling

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Seedling Basic Repstrap-Huxley Development

Release status: experimental

HuxleySeedlingEvolution.jpg
Description
A basic simple 3D printer based on Huxley to print all the parts needed to build Huxley or Mendel uses only materials & components that anyone can make or buy. Low cost low tech.
License
Author
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CAD Models
External Link


Lasercut version1.jpg



Introduction

For the last two years I have been building various RepStrap versions of Darwin and Mendel trying to devise simple ways to build these printed self replicating machines. Huxley Seedling is based on all of the experience gained building the previous RepStraps. I built two of these RepStraps in February 2010 This will be the final rendition/ re-design.

This is the very First posting of all the components and drawings used to build a Huxley Seedling machine.

Note: Sebastien I have not blogged this design.. ;-) Nophead saw some of the early parts in February when we meet up.

Done

Belt Splitter tested in both forms lasercut and hardboard hand made version. Works with both methods of making.

Made the drawings for new Worm Extruder Drive MKV.

Made the component parts for Worm Extruder Drive MKV.

Build the Worm Extruder Drive MKV.

Test the Worm Extruder Drive MKV.

Learning to drive this wiki!

Lots of drawings and then draw all of them again as lost all of the previous drawings!!!!

Then re-making every part from those drawings might try other means to make from drawings.. Taking a trip into Manchester to FAB LAB MCR was very interesting and shaved at least a week off of drawing testing time.

Estimated total cost just below £200 in parts.

To do list

Add old Electronics and test Axis movement, aligment, repeatability on the experimetal version

Test the flat pack version of wades extruder.

Parts list in ods spread sheet.

Design low cost electronics.

Documenting each stage

Photographing the build process.

Listing raw materials tools etc.

Spell checking every thing.

Working Notes

I have used the Belt Splitter for the really long belts for my DIY Laser Cutter build. Low cost bearing solutions based on RepStrap Bertha builds alowing for upgrade to high quality linear bearings. We spent an interesting day at Fab Lab MCR . testing some of the drawings out using the Laser cutter. Slight modifications are required to some of the drawings.

Discussion

Materials:

Sheet material MDF or Ply or Perspex/Acrlic or HDPE or Aluminum.

Fix It Blocks (a few)

M4 Screws Sizes/numbers to be defined not to far diffrent from the Mendel screws (not so many)

Steel bar or Stainless Steel Bar, Threded bar, Steel or plastic or Aluminum tube.

The Belt Splitter

Beltsplitterhb300.jpg Perspex300.jpg Belts600.jpg

Drawings

Belt Splitter drawings

Media:A4_beltSplitterorg.pdf‎

Media:A5_beltSplitterorg.pdf‎

Media:Small_140mmx70mm_beltSplitterorg.pdf‎

Use 3mm Perspex,MDF,PLy,hardboard

Make it at home print it to scale stick with glue stick onto 3mm MDF or hard board.

Drill out the 10 x 4mm holes using a hand drill, electric drill, dremel

Drill out the ends of the 4mm slots ie (4 x 4mm holes) using a hand drill, electric drill, dremel

Cutting MDF or hardboard with a craft knife/stanly knife is done by making repeated cuts/scores on the line don't try to do it in one cut!!

Use a stanley knife or Dremel to cut out the lines of the 2 x 4mm slots. Now you can cut the 2 blade slots they are 0.8mm wide I used a small craft knife then snapped the slither out.

Check you have all the holes drilled and the 4 slots cut out before cutting the out lines. This is done using a dremel saw, hack saw, craft saw or even using the craft knife scoring method.

Assemble it using 4mm screws.

Using the Belt Spliter Belt splitter jig

Thingyverse link http://www.thingiverse.com/thing:4952

>------------------------------------

Wades Extruder

Wadesextruder500.jpg

Drawings for Wades_Extruder

Needs up dateing >> Media:Wades_Extruder.pdf

Used 3mm Perspex,MDF,PLy

Make it at home print it to scale stick with glue stick onto 3mm MDF or hard board.

Drill out the 14 x 3mm holes using a hand drill, electric drill, dremel

Drill out the 45 x 4mm holes using a hand drill, electric drill, dremel

Drill out the ends of the 4 3mm slots ie (8 x 3mm holes) using a hand drill, electric drill, dremel

Drill out the ends of the 14 4mm slots ie (28 x 4mm holes) using a hand drill, electric drill, dremel

Drill out the ends of the 4 5mm slots ie (8 x 5mm holes) using a hand drill, electric drill, dremel

to be continued.. ~

Cutting MDF or hardboard with a craft knife/stanly knife is done by making repeated cuts/scores on the line don't try to do it in one cut!!

Use a stanley knife or Dremel to cut out the lines of the 4 x 3mm slots.

Use a stanley knife or Dremel to cut out the lines of the 14 x 4mm slots.

Use a stanley knife or Dremel to cut out the lines of the 4 x 5mm slots.

Check you have all the holes drilled and the 22 slots cut out before cutting the out lines. This is done using a dremel saw, hack saw, craft saw or even using the craft knife scoring method.

Assemble it using 4mm screws.


Worm Extruder Drive MKV Drawings go here Plus repstrap Huxley component drawings.


Basic DIY Drawings print it stick it and cut it.

Laser cutter Drawings,

The Print Bed for ABS

Drawing File:Bed.pdf

200 x 165 x 10mm Acrlic


This thickness of Acrlic is needed to prevent warping of the Acrlic. This part of the design decisision process was helped by the experiences of Forrest Higgs with his RapMan printing ABS on Acrlic.

Hardware

Steppers are NEMA 14 or NEMA 17.

Belts 80thou or 5mm pitch Syncroflex (Note 5mm pitch is easier to hand make the gears)

If I find a way to make ball chain gears at home this would be even better.

4mm Screws 120 Estimate varying sizes. 4mm Nuts 120 Estimate

Fixit blocks total so far 39

Linea Bearings optional.

Tooling

Basic tools:- Printer, Glue Sticks, Electric Drill with stand, Hack saw, Sharp Chisels metric drills Hand saw craft Knife / Stanly Knife.

Advanced tools:- Pedestal Drill, Chop Saw, Dremel, router, Jigsaw, Band saw, Scroll saw any electric cutting tool.

Technophobe tools:- CNC or Laser Cutter or Water Jet Cutter or a vist to your nearest FAB LAB

Mail order:- Ponko Laser cutting service