Prusa buffer extended bottom with fittings

prusaprinters

<p>I went through a lot of different arrangements to get my MMU working. &nbsp;I tried various buffering solutions, but in the end, I found that the buffer that came with the MMU2S worked the best for me and my arrangement. &nbsp;But loading it was a real pain, and I didn't like the way the tubes were connected to the unit.</p><p>I saw <a href="https://www.printables.com/model/116509-extended-rear-buffer-plate-for-mmu2mmu2s-easier-fe">this model</a> which extends the bottom of the buffer, but it has two issues. &nbsp;First, it uses the same method of attaching the tubing, and second, it requires a lot of support to print.</p><p>So I took that idea and made my own model. &nbsp;This model extends the base, but splits it into two separate pieces. &nbsp;The first piece just slides onto the bottom of the buffer plates and lines up with the holes. &nbsp;The second piece is the extension piece and goes “over” the first piece. &nbsp;You then use the screws and nuts that came with the buffer to attach both pieces to bottom of the buffer.</p><p>I also included sockets for PC4-M10 fittings to make it easy to connect and disconnect the tubing.</p><p>Finally, I found it difficult to find the hole for the filament in the black filament, so I added a small ring that I printed in white to make it easier to insert the filament.</p><p>I suggest that you use smart fill on painted on supports on each of the sockets from the bottom to add support. &nbsp;It's a little bit of a challenge to get the support out, but it does come out nicely in the end, and the threads in there are intact.</p>