RE: Quicker nozzle swaps
Wow, what an amazing effort and contribution. Thank you for your efforts. I sent a link to your post to the guy at Prusa CS who I’ve been talking.
I still haven’t decided if I’ll assemble my parts (I have enough for 2) or just keep the parts as spares. I mainly wanted them on hand in case I broke a wire on my nozzle swap.
RE: Quicker nozzle swaps
I referred Prusa CS to the latest info on this thread and got another follow up today. To summarize Prusa’s response: no paste is necessary. It also won’t hurt to use paste but they did warn that the tolerance is tight and the paste might make assembly a bit tougher. I’m going to forgo paste unless I see an issue.
RE: Quicker nozzle swaps
i have 2 spare, complete hotends ready to swap. (And did so a couple of times). But i wonder how long the connectors will last, if been worked on frequently.
Also, a little too much strain on the thermistor cable will brake it and its a pain to fiddle the cables back in the "channel".
I would rather build myself an adaptor with the connectors outside the extruder-housing. This would make swapping really fast and there would be no strain on the loveboard-connectors.
(1 4 pole plug would be sufficient. In the rc-modelling world there are lots of small connectors wich can easily handle the current from the heater)
So, does anyone know what type of connectors prusa is using there (heater and thermistor)?
Thanks for your help
RE: Quicker nozzle swaps
I don't know about the heater core connector, but the thermistor connector has been identified.
RE:
I now have several complete nozzle assemblies (heater block, heater, thermistor, V6 nozzle adapter, V6 nozzle) for easy nozzle swaps without tools, but like many others I find inserting the cables into the cable channel rather fiddly. So I've modified the x-carriage to give it a wider cable channel, in the hope of making nozzle assembly swaps slightly easier. It has certainly achieved that aim.
I realise that the wider mouth of the cable channel could potentially make it easier for the cables to pop out, but in practice the cables seem stiff enough to prevent this, especially if the stiffer heater cables are inserted last. And the print fan assembly blocks the cable channel anyway, so provided the cables don't get pinched by the fan assembly when it is flipped into place, the cables cannot come out.
I've published my modified x-carriage on Printables here.
RE: Quicker nozzle swaps
Was hoping someone would make this exact modification, excellent work!
I will definitely be using this modification at some point in the future... have everything currently in the enclosure, so will probably be waiting until the MMU3 to throw this one into the mix.