ReChain Self centering - Revision history

Apm: Nanoscale APM & crystolecule context

2025-03-01T09:45:11Z

@@ Line 24: / Line 24: @@
 though one might want to go for smaller parts then and<br>
 choices for permanent high compression force tolerant material are likely more limited (2025). <br>
 == Related ==

Apm: /* (FDM/FFF) 3D printing context */ headlines

2025-03-01T09:37:33Z

(FDM/FFF) 3D printing context: headlines

← Older revision		Revision as of 11:37, 1 March 2025
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	* Eventually constrain all degrees of freedom of the pressed together surface contact. (This can involve more than two parts.)		* Eventually constrain all degrees of freedom of the pressed together surface contact. (This can involve more than two parts.)

	== (FDM/FFF~~) 3D~~ printing ~~context~~ ==		== 3D printing context ==

			=== FDM/FFF termoplastic printing ===

	Not all flanks properly contacting due to printing inaccuracies <br>		Not all flanks properly contacting due to printing inaccuracies <br>
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	Fiber fill makes it better printable but removes the flex, so that defeats the purpose. <br>		Fiber fill makes it better printable but removes the flex, so that defeats the purpose. <br>
	Fibers may help reducing creep issues tough. <br>		Fibers may help reducing creep issues tough. <br>

			=== SLA resin printing ===

	SLA printing may be better as it's higher resolution and more accurate across the layers, <br>		SLA printing may be better as it's higher resolution and more accurate across the layers, <br>

Apm: basic page

2025-03-01T09:36:21Z

basic page

New page

{{ReChain}}
{{stub}}
{{wikitodo|Add the already made illustrative image. This shows details on do's and don'ts.}}

One good design scheme:
* Trapezoids ridges going into V-shaped grooves.
* Only the flanks touch the flanks. The main coplanar surfaces do not touch.
* To avoid some slide-rotations always use at last two mating structures. (These may be parallel or normal to each other.)
* Eventually constrain all degrees of freedom of the pressed together surface contact. (This can involve more than two parts.)

== (FDM/FFF) 3D printing context ==

Not all flanks properly contacting due to printing inaccuracies 
may perhaps be compensatable by some material flex when using polyamide (PA/nylon). 
polyamide (PA/nylon) is challenging to print though (shrinkage, bed ashesion, heated chamber) 
Fiber fill makes it better printable but removes the flex, so that defeats the purpose. 
Fibers may help reducing creep issues tough. 

SLA printing may be better as it's higher resolution and more accurate across the layers, 
though one might want to go for smaller parts then and 
choices for permanent high compression force tolerant material are likely more limited (2025). 

== Related ==

* [[Hirth joint]]s
----
* [[ReChain frame systems]]
* [[ReChain]]

== External links ==

* [[https://en.wikipedia.org/wiki/Kinematic_coupling Kinematic coupling]]