It was the Aliexpress 11.11 sale, OK.

This project started out as the SecSavr Simplex in July, where the goal was to 3D print the frame of a corexy so that I could get a cheap corexy. Archived the project for a bit until November where I saw some 800mm 8mm OD smooth rods. This resparked my imagination to continue designing this printer, as the Simplex was a printed corexy and that’s about it. At least with a tall printer, I can print the tall things I wanted to get a Tronxy X5S500 or K280 for.

This is my first 3D printer from scratch and I didn’t expect to redesign once for longer rods, and then redesign again because the original design looked horribly disproportionate when stretched up to +1m in height.

My main competition was the K280 delta printer, and this printer turned out like a “midrange smartphone”. It’s not a flagship with a Hermes, Duet Wifi and 12mm rods, but it’s probably some of the best you can get for the price.

The printer needed to print this printer is 300x300x400. A lot of the parts use the entire build surface so no binder clips. The main frame has been optimised for 0.6mm nozzle 0.4mm layer height 4 perimeters, although 0.4mm nozzle, 0.2mm layer height 6 perimeters should work too.

The build costs around £350 and the BOM is in a spreadsheet. The highlighted things are extras.

Please like, comment or post a make! Even if it’s just 1 piece that you made, or even a screenshot of it in the slicer, please post!

Support/tips is always appreciated.

Will create the GitHub repository shortly.

Timeline

[¬ = Updated, + = Added, – = Removed]

[Jan 3]

• Made the Thingiverse Thing.

[Jan 1]

• Finished the main design for the SecSavr Skyrise and I can now start printing and fine tuning the model.

The Spec Sheet

[For the initial specifications I had starting this project, see the SecSavr Simplex.]

• Build comes around to sub £330, but could probably go sub £300 if you don’t get extras.
• 24V 400W fanless power supply
• Sensorless homing TMC2209 drivers
• 200×200 heated bed with 700mm of build height.
• Touchscreen with support for both SD cards and USB.
• Some sort of tile like material present.
  
  –It’s a SecSavr theme
• Wire management
• No “If only I spent 5 quid extra” ‘s
  
  — I was annoyed that everything in my price point needed an upgrade of some sort that probably costs like £5 more than the part used.
• SecSavr and kelvinA branding
  
  — With the kelvinA branding being non-optional
• Accessible from 2 sides
• Looks athstetically pleasing
• 2 7530 blowers cooling down the part
  
  — For printing with 1mm or 1.2mm nozzles
• Piezo Z probe so that you don’t have to redo the z offset after frequent nozzle changes.
• 10kg weight attachment for the base to prevent falling
• Flexible magnetic PEI sheet, with both a textured and smooth side
• BMG extruder
• Filament sensor
• Orange Pi with Octoprint for wireless printing
  
  — The £13 I save instead of getting a rpi is for the M12 threaded rods.
• Graphite self lubricating bushings
• Leds
  
  — I’m thinking of an animated addressable LED strip at the front too
• Endoscope camera
  
  — Also doubles as a hotend light