Kiwi remix

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The Kiwi Remix is a Delta printer with a wooden frame, which can be cut on a CNC machine or Laser cutter.


Kiwiremix purple.jpg

Features include:

  • Uses 3mm threaded rod cut to size for the platform bolts, carriage bots and connector rods.
  • 8mm smooth rod and LM8UU bearings, 3 per carriage for added stability.
  • Z min probe for auto bed leveling
  • Z min probe is activated by a servo mounted on the frame
  • LCD control panel
  • Tidy and compact
  • Small foot print
  • Heated bed to enable both ABS and PLA
  • 170 x 170 x 170 (mm) print volume
  • 3mm filament
  • Handy reel holder


Licence

GPL


Background

Why design another Delta printer, in my part of the world where there is no heavy industry, in fact industry is farming, getting even the simplest nuts and bolts common in other regions can be problematic, so the design is based around very basic commonly available nuts and bolts. The retainers for the Carriage, platform and the connecting rods are cut to length M3 threaded rod (if I could have got a piece of high tensile 2.5mm fencing wire straight enough I would have used that for the connecting rods. I do use cut up gumboot for the rubber stoppers on the base though). Also the Greg wades extruder has been updated to take 4mm bolts instead of 3mm (I couldn't get 3mm long enough), also sized to accept 3mm filament.

One of the interesting features and innovations is the servo controlled z-min probe, the servo is mounted on the frame and uses a standard bicycle brake cable to connect to a hinged end-stop on the hot end platform.

The reason for the 3 LM8UU's per carriage is histoical now - New Zealand has been metric for years - decades but for what ever reason it doesn't matter what steel place you ring they only supply 8mm rod in imperial size's no true 8mm its 7.68mm which has a little bit of bearing play and is also noisy (bearing slap), but I have managed to find one locally now which does supply metric rod (Tata steel in Petone 3m lengths) so it could go back down to 2 bearings per carriage in future revisions.

Design files

The DXF, STL and scad files can be found on Thingiverse www.thingiverse.com/thing:274408

thingiverse-production.s3.amazonaws.com/renders/1b/4d/bb/c9/50/20140210_193507_display_large.jpg

web site 3dprinter.kiwi.nz