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The easiest solution I’ve found is to just use the mrbulletfeeder motor. I also use their switch.


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But even more so print out a calibration cube, adjust your printer correctly, and do a couple test prints before you start on a long print. Also print out a temperature tower for the filament you’re...

Assuming you’re printing with a .04 nozzle, I think that’s the size that comes with an ender 3, you should change your layer height to .16.


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I finally got my feeder up and running, just need to find a spring for the little flipper finger thing.

If anyone would like the files for the cable cover, under the bullet feeder, or the Jig I...

Yea I ended up going with that mount. I guessed it was just as you said, screws biting on the threads of a bolt, which I feel wouldn’t be secure enough.


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Could someone explain to me how this side mount is configured?
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I see that its using this printed piece, and there looks to be screws in each of the holes around the circular part, but...

Nice print! You’ve probably figured out by now though that you have the flipper plate backwards, and you’ll need to adjust it out about a cm.


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Yea would be better off remodeling it in fusion360. Pretty simple to move the switch up. Also the base tolerances are slightly too much for my liking.


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https://uploads.tapatalk-cdn.com/20190330/359ba8e1539fe407b52e0982939d3763.jpg

You can see the trigger arm is fairly low in the tube.



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I went with the mr bullet feeder switch. Although I'm thinking about modifying the drop tube for it, as it sits somewhat low, not allowing that many bullets to load into the tube.

Others in this...

everything you need can be found here: https://www.thingiverse.com/thing:2504314

I made a thing, if people are looking for an alternative electrical box for the OpenBulletFeeder. This is a more mobile design.https://www.thingiverse.com/thing:3520214

I had the same issue. I was using acme bullets, and the hornady die doesn’t like them. May be the coating or slight irregularities. None the less the mrbulletfeeder die has zero issues.


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Ender 3 is a solid printer, you shouldn’t have an issue. I’m also using a LnL AP, though I started with the hornady die, I switch to the mr bullet feeder after it broke. The hornady die relies on...

I was just about to ask this same question. The spring for the stock anet a8 bed is way too stiff for this. Anyone have suggestions?


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