Centauri Carbon 7.5 mm Panel Spacer

This spacer helps reinforce the edges of the panel for mounting hinges or providing extra room for an internal spool holder.

Recommend knurled heat-set inserts with this spacer unless you select the M3 nut version. If you have never done heat-set inserts before, you will need the following to get started:

• Soldering Iron - I use the Yihua 939D+
• Heat-set Insert Tool/Tips - This set is compatible with the 939D+
• Threaded Inserts, like this Brass Threaded Inserts Assortment Kit

If you don't want a more expensive DC soldering iron similar to the Yihua mentioned above, and want an all-inclusive and inexpensive way to get started, this kit will work just fine.

There are heat-set presses to help guide threaded inserts into your print. They typically include tips and the soldering iron, like the ones mentioned above. These are nice to have, but a luxury I have yet to invest in.

If you choose the M3 nut version instead of the heat-set insert version, the model was designed around nuts from a kit like this one: M3 Screws Assortment. The nuts from the manufacturer in the link fit tightly and don't fall out. Yet they can be pushed out by threading a screw partially and pushing out firmly.

Change log:

• 2025-07-12 v1.1n
  • Fixed floating cantilever error
• 2025-07-04 v1.1n
  • Adds capability to use a 5.5 mm M3 nut up to 4.5 mm thick instead of a knurled insert
• 2025-07-01 v1.1
  • Much improved joint connections
  • Fixed clearance between parts
  • Minor fillet changes

Help financially support further development of these models at no extra cost by using the links in this description to purchase any needed hardware or tools. Even if you ultimately choose another item, it is helpful. Thank you!