激情链条夹具：减轻应力，带中心对齐棒

Ragefire Chain Clip Less Stress w/Center Alignment Rod

2024-01-05 13:31:47

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Summary

Props to Lord_draconical. I have taken his latest version of the XShot Ragefire Chain Link and modified it slightly.
The major modifications are as follows:

I brought the model into Fusion 360 and extruded/merged the "top" 3.5mm ear/socket piece to be a completely solid piece (no more relief). I found that on the latest model of the ragefire, the original relief on the socket ear did not allow for enough tension to be held on the adjoining links ball connection, causing the printed link to essentially come apart.
I added a center guide rod similar to what is found in the original links. The original links appear to be tapered, but I chose a happy medium OD, with a radius on the top of the rod to prevent snagging or tearing of the dart.
Note that when assembled, it does take a little bit of effort to engage the balls and sockets on each side of the link. I've found that seating top or bottom first, and then hinging the other side carefully into place works well.

I made the mistake of printing one of the models at 20% infill. Don't do that, the link will likely break apart during assembly. I have found that 100% infill is a necessity with this print.

Also, make sure you utilize supports. Experiment with it a little. I can say that the "everywhere" support option within Cura is going to give you the best results, but it does result in a small exercise of cutting the part out of its cocoon.

Again, major props to Lord_draconical for loading up a very good model to start with, and for being a good sport when it comes to remixes.

Link to Original Part I Started With: https://www.thingiverse.com/thing:6237450

Print Settings

Printer brand:
Creality
Printer:
Ender-3 S1 Pro
Rafts:
Doesn't Matter
Supports:
Yes
Resolution:
.2mm ok, .16mm preferred
Infill:
100%
Filament brand:
Creality
Filament color:
White and Red Tested
Filament material:
PLA
Notes:
Recommend to print vertically.
Experiment with your support type, but supports are required for the precise detail and overhang of the ball and socket ears.
I prefer printing with support "everywhere", but this does result in having to cut the part out of its cocoon after completion.

How I Designed This

Brought original model into Fusion 360.
Added sketch to socket ear and traced top of socket ear (ear with small relief).
Extruded and joined/merged to original part.

Added center alignment rod.
Added radius to top/tip of alignment rod to prevent snagging and tearing of dart when being inserted.