As soon as I saw the Prometheus dual extrusion system (2 into 1) I’ve been wanting to have look at it and I finally found time today. I printed the 3Dator version first off but discovered it needed PC4-M5 couplers, which are a pain to find here in the UK. So I started from scratch and I designed it to use PC4-M6 Couplers as that’s what I had to hand. A few hours tweaking with the tool change script and I think I may have nailed it.
I’ve slung it up on TV for those that are interested:
Also got this going on with a machine at work; worried about setting up a retraction script for it though.
I have been looking into this as well, any more info that you can share would greatly be appreciated. Especially the tool change. Thanks
Nice! I’m in the process of designing one as well. Can we see some print examples?
@ThantiK - yeah took a few hours of tinkering to get right, I’m probably going to go with the same stuff the Prometheus uses eventually as I’ve found unless your filament end is perfect, it can really balls things up.
@Jeremiah_Coley - My Tool Change script of S3D is on TV. It’s basically a small retract (5mm), a 2mm re-insert then a high speed retract, the length of which depends on the length of the bottom tube. You basically don’t want it to exit the Y Split. The re-insert from the other is a fast up to 10mm away then slow to kill any problems.
@Griffin_Paquette - er I’ve only had half a print off it, it was all going well until the purge tower fell over but see below…
missing/deleted image from Google+
Looks good though!! You have inspired me to get back on working on mine. This is on a Lite6?
@Griffin_Paquette - It’s a v6, but there’s nothing to say that it won’t work with a Lite6
@Ax_Smith-Laffin probably work even better with a Lite6 as there are less breaks.
@ThantiK - Aye, did cross my mind. I have 2 Printers that run Lite6s. There’s a job for after the next FB2020 build (which is going to incorporate this)
Thanks for the design work Ax!!! Perfect timing for my dual extruder delta project.
@AlohaMilton - no worries, pretty simple design tbh, considering shortening it and bringing the Y Closer, straighter path should help iron out the last few issues
Given that I have like 200 E3D bowden inserts for 4mm PTFE, I guess I should build one that allows the PTFE to seat into the adapter. I could probably get the PTFE tube a lot closer together.
It would be awesome to be able to clear mold these so you could see what the plugs were doing while perfecting the retract.
@ThantiK - My brain is buzzing with this at the moment. I’m thinking Embedded couplings are going to be better than the Pnumatic couplers, I have someone who can lathe up some Keptron HPV.
I was actually staring at the Clear HDGlass I have on another printer, and thinking it’d look cool if I could get it transparent enough.