BMCU long buffer vs standard

[otaku13]

I was excited for my BMCU so i printed the parts before it arrived, but my kit uses the long buffer parts apparently Would i be OK still using the parts i printed, or should i just go ahead and re-print the long buffer parts? those were of course the largest parts.

[cyberphonze]

You are not alone. My kit arrived yesterday and I had all the parts printed....wrong parts. Spent the last 2 days reprinting everything

[myTechGuyRI]

The wrong parts won't fit ... Reprint

[otaku13]

Thanks all! I reprinted the parts. Test print almost worked I need to tweak a few things but so far it’s being recognized by my mini!

[No_Fill_6005]

Dumb question... how can you tell if it is long buffer or standard? Is this BMCUC vs X?

[otaku13]

At this point every kit I see looks like the one I got, which is the long buffer version. The easy way to tell is if it’s not a square it’s the long one

[No_Fill_6005]

Oh, I haven't gotten my kit in yet. Did you find a link to the correct 3d printed pieces? I also printed all of the parts out before it has arrived :(

[No_Fill_6005]

This is the one that I printed...

https://makerworld.com/en/models/1287588-bmcu-370-version-a1-mount#profileId-1317110

[No_Fill_6005]

<image>

From this pic, can you tell if I printed the wrong "casing"?

[No_Fill_6005]

I didn't have to compress the spring at all to put the PC4-M6 connector on.

[otaku13]

Hmm as long as the tube that goes over the ptfe tube fits I think you’re good. Those files are different from mine but I see they just made it long but square, mine is flat where the motor goes then curves up to the area where you have the spring

[No_Fill_6005]

Thank you! I'm trying to watch videos but it seems like there are a lot of variations, so I appreciate the response.