3DPrinting
3DPrinting is a place where makers of all skill levels and walks of life can learn about and discuss 3D printing and development of 3D printed parts and devices.
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I don't own a Q1 pro, and my only experience prior to my current printer was an ender 3 pro.
But I bought a Qidi Plus 4 a couple of months ago and have been extremely happy with it. It's fast, reliable, and has the heated chamber and high temp hotend. Multi-material is supposed to get added via the Qidi box in the first quarter if you wanted to add it on later.
I haven't printed any engineering grade material on it yet, but all the reviews I've seen say it's a piece of cake with advanced materials.
... and absolutely yes on the engineering materials, should be easy as pie.
That plus 4 looks very nice, but it is just a little out of my price range unfortunately and it also seems like the Qidi box will not be compatible with the Q1 Pro, but I still feel like multi filament printing with a single print head is a wasteful gimmick.
Like you, I have an A1 mini but with the AMS lite, I seldom use it for multi color prints beyond some few pieces of simple signage. But, it's very effective when you hang multiple materials or colors to do your single material/color prints. So I have to give them that point.
That said, when I bought the mini this last fall, I was all set to buy the Qidi X Smart 3-- only to discover it had been discontinued and off the website when I went to order. I just wanted a smaller and faster printer.
I see 3 reasons to save your pennies to get the Plus 4 over the Q1. It's a bit bigger print volume, what appears to be better specs for printing those high end engineering filaments you want to print, and being a newer model it will be supported longer. The Qidi Box isn't needed anymore than the AMS system you already don't have. But I think you will be happier over the long run.
Ah, yes. I overlooked the budget. Well, I can at least attest to the quality of Qidi brand out of the box. Not sure on longevity, but I'm impressed so far.