Here's a video of a delta that someone has built using an extruder on a 4th tower, enabled by the recent addition of support for more than 3 towers in RepRapFirmware. Notice how the height of the extruder adapts not only to the Z height of the extruder but also to the XY position. [www.youtube.com] https://reprap.org/forum/read.php?178,848717,848717#msg-848717 Sun, 09 Aug 2026 00:27:30 -0400 Phorum 5.2.23 https://reprap.org/forum/read.php?178,848717,849727#msg-849727 https://reprap.org/forum/read.php?178,848717,849727#msg-849727
I thought shoter Bowden tube removes many problems caused by excessive bending of the tube during printing.

I added the fourth axis to install the extruder on my Fisher last year.
- Two smooth rods
- Counter weight
- Extra printed parts
- Two pulleys
- Two cylinderical bearings

I haven't finished it though.]]> janpenguin Delta Machines Thu, 21 Mar 2019 22:33:30 -0400 https://reprap.org/forum/read.php?178,848717,848937#msg-848937 https://reprap.org/forum/read.php?178,848717,848937#msg-848937
Hmmm,
DLC]]> dlc60 Delta Machines Mon, 11 Mar 2019 16:19:11 -0400 https://reprap.org/forum/read.php?178,848717,848717#msg-848717 https://reprap.org/forum/read.php?178,848717,848717#msg-848717
[www.youtube.com]]]> dc42 Delta Machines Thu, 07 Mar 2019 06:10:22 -0500