MDFstrap

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Revision as of 05:21, 7 April 2014 by Terryb8s (talk | contribs) (Extruder)
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This page is a development stub. Please enhance this page by adding information, cad files, nice big images, and well structured data!

Work in progress.
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MDFStrap

Release status: experimental

MDFStrap-Full-3212014.jpg
Description
Build log for 3D Printer made with MDF
License
Author
Contributors
Based-on
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CAD Models
External Link


MDFStrap Summary

Check out the blog for recent updates Hacktivate Blog

X Axis

Have used threaded rod for the X axis.

Parts

  • Lots x MDF off cuts
  • Lots x Self tapping screws
  • 8mm threaded rod
  • 5 x 8mm nuts
  • 2 x 8mm washer
  • 2 x LM8UU Linear bearing
  • 1 x Server rack mount rail

First I cut the server rack rail down with a grinder to allow more horizontal movement, created countersink holes for the countersunk self tap screws, attached some MDF to the back of the rail and for mounting the filament extruder and hotend to.

For the threaded rod bearings I used the same method as the Z axis to create indents, for the drive nuts (Z axis ones too) I pressed them into pieces of MDF first drilling a 14mm indent then a 10mm hole, then notching the 14mm indent so the nuts would press in correctly.

Then I attached everything with the self tap screws (guide holes drilled first)

Z Axis

Similar to Mendel and Prusa builds this has dual direct drive steppers.

Parts

  • MDF
  • 2 x 8mm Stainless steel rod (From Mustek 600 flatbed scanner)
  • 4 x 608 skate bearings
  • 14 x 8mm nuts
  • 8 x 8mm washers
  • 3 x 8mm threaded rod (about 1.5 meters)
  • Several self tapping screws (holes drilled for guide)

I used more MDF off cuts to create the Z Axis, 8mm holes were cut for the stainless steel rods, 22mm indents were cut with a wedge drill bit then 10mm holes in the centre for the threaded rod, 8mm holes were cut for the centre threaded rod which was then used to make the distance between the sides accurate from top to bottom.

Y Axis

This was built using a Agfa Flatbed scanner.

  • Stepper Cog Teeth: 24
  • Belt Pioneer 419MXL
  • 65.6814 steps per\mm

Extruder

Greg's Hinged Extruder

Electronics

MDFStrap - Ramps 1.4-Ard.jpg
  • Sainsmart Arduino Mega 2560
  • Sainsmart Ramps 1.4
  • Sainsmart Endstops
  • Sainsmart Full LCD Controller
  • Sainsmart Heat Bed
  • Xbox 360 Power Supply (to be replaced)
  • 5 x Nema 17 Steppers