Evaluating Craftbot 3 Design

Evaluating Craftbot 3 Design Looking to build a niche machine for printing orthopedic devices (mostly prosthetic sockets) and looking into motion systems. What do you all think about the new Craftbot 3 gantry system? image08.png mod_embed_images_loadimage('6a8acc599ddbf14c4166646dd4867154', '/forum/thumbcache/782/375/866/d3d/302/f6c/d0c/a3c/7a4/9b9/de_800x400.png', 'https://craftbot.com/the-supervisor/assets/images/image08.png', 'https://reprap.org/forum/addon.php?397,module=embed_images,check_scaling=1,url=https%3A%2F%2Fcraftbot.com%2Fthe-supervisor%2Fassets%2Fimages%2Fimage08.png', '', 850653, 800, 400, 'Loading image ...', false); It is almost like a Cartesian & H-bot hybrid, so shorter belts, no stacked or crossed belts, and a mechanically (albeit not so much w/ firmware) simple IDEX implementation w/ no moving motors (other than extruders). Seems like it would be easy to keep the non-extruding motors out of the heat zone for a heated build area if necessary as well. Leaning going this direction (probably with only 1 Y motor like FFCP/Replicator) and willing to fight the firmware battles to end up with a more straightforward alternative to the CoreXYU or heavier cartesian IDEX in the long run. https://reprap.org/forum/read.php?397,850653,850653#msg-850653 Mon, 17 Aug 2026 22:14:11 -0400 Phorum 5.2.23 https://reprap.org/forum/read.php?397,850653,850729#msg-850729 Re: Evaluating Craftbot 3 Design https://reprap.org/forum/read.php?397,850653,850729#msg-850729

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ChayDuuLetDuu
What do you all think about the new Craftbot 3 gantry system?

It is almost like a Cartesian & H-bot hybrid, so shorter belts, no stacked or crossed belts, and a mechanically (albeit not so much w/ firmware) simple IDEX implementation w/ no moving motors (other than extruders). Seems like it would be easy to keep the non-extruding motors out of the heat zone for a heated build area if necessary as well.

Leaning going this direction (probably with only 1 Y motor like FFCP/Replicator) and willing to fight the firmware battles to end up with a more straightforward alternative to the CoreXYU or heavier cartesian IDEX in the long run.

RepRapFirmware will support that configuration without you even needing to recompile it. The standard binaries support any kinematics in which the motion of each axis is a linear combination of motor movements (as well as several nonlinear kinematics). You specify the motion coefficients in a command in the config.g file on the SD card.

The extruder motors in that picture look unnecessarily heavy, even if using a Bondtech or similar extruder with only 3:1 gearing. With higher gearing you could use pancake motors or Nema 14 motors.]]> dc42 CoreXY Machines Sat, 06 Apr 2019 03:30:28 -0400 https://reprap.org/forum/read.php?397,850653,850719#msg-850719 Re: Evaluating Craftbot 3 Design https://reprap.org/forum/read.php?397,850653,850719#msg-850719 datesheet CoreXY Machines Sat, 06 Apr 2019 00:38:51 -0400 https://reprap.org/forum/read.php?397,850653,850653#msg-850653 Evaluating Craftbot 3 Design https://reprap.org/forum/read.php?397,850653,850653#msg-850653
What do you all think about the new Craftbot 3 gantry system?

image08.png

It is almost like a Cartesian & H-bot hybrid, so shorter belts, no stacked or crossed belts, and a mechanically (albeit not so much w/ firmware) simple IDEX implementation w/ no moving motors (other than extruders). Seems like it would be easy to keep the non-extruding motors out of the heat zone for a heated build area if necessary as well.

Leaning going this direction (probably with only 1 Y motor like FFCP/Replicator) and willing to fight the firmware battles to end up with a more straightforward alternative to the CoreXYU or heavier cartesian IDEX in the long run.
]]> ChayDuuLetDuu CoreXY Machines Fri, 05 Apr 2019 03:25:25 -0400