bed-coupling.md

Bed coupling

There are many options for bed coupling. Some of them are from old beta design, some are mods from community. You can choose the option you like, but please note that the one in assembly CAD is the default option.

1. Threaded ball coupling : (default) Improved version of the below magnet and ballbearing. Compatible with both 2020 and 1515 bed frame.

Item	Quantity	Description	default link/affiliate link	non-affiliate link
10mm M4 threaded ball	3	-		Aliexpress
M4x6x4 Thread insert	Already included in the fasteners BOM	-
12mm M4 grub screw	Already included in the fasteners BOM	-

2. Magnet and balbearing coupling : Bed coupling method used on beta1 release. Compatible with both 2020 and 1515 bed frame, but might not suitable for heavy bed.

Item	Quantity	Description	default link/affiliate link	non-affiliate link
Ring magnet	3	10x6x5mm ring magnet(for 1515 and 2020 bed frame) or 13x5.5x6mm ring magnet(for 2020 bed frame)		10x6x5mm ring magnet(for 1515 and 2020 bed frame) or 13x5.5x6mm ring magnet(for 2020 bed frame)Aliexpress
8mm ball bearing	3		Aliexpress	Aliexpress

3. Spherical bearing coupling : Mod made by PCR, only available for 2020 bed frame.

Item	Quantity	Description	default link/affiliate link	non-affiliate link
Spherical bearing coupler	3	GE5C bearing	Aliexpress	Aliexpress