Tuning the Prusa Core One

arachnoid.com

58 points by lutusp a day ago


antirez - 21 hours ago

Excellent article. It is very hard to understand a few things about Prusa, lately:

1. The Nextruder looks 5 years behind Bambulab nozzle switching, without to mention the cost of a new nozzle. A clogged nozzle is a non issue in a Bambulab printer, but it causes me a big cost and more work with my MK4 (which has the same extruder as the Core One).

2. How is it possible that these printers still lack at least a cheap webcam?

3. One of the strengths of Prusa should be support. It used to be very good, years ago. Now the issue the OP is reporting about the app that is not able to detect the principal component in the sound of the belt, is an example of a more extended problem, that one can see in many ways, especially in the MK4 / Core One documentation, that is especially lacking.

In general, here the OP is doing the work that Prusa should be doing to provide a better experience, without to mention all the design issues that they are not fixing directly before shipping their printers. I'm also a Bambulab user, and my A1 costed a fraction of my MK4 and it is the printer I always hit because of the zero-issues. It just works.

Now companies may have ups and downs, but there is some problem at Prusa: they are still not understanding what's really happening and where their problems are.

conorbergin - 20 hours ago

I think someone says this in every HN post involving CAD, but the reason FreeCAD is "buggy" and Solvespace is small and fast is Solvespace has a fraction of the power. FreeCAD uses the Open Cascade kernel, which can do complex 3d boolean and fillet operations, not having these operations severely limits the geometry you can create, and you will run into walls very quickly using Solvespace, OpenSCAD or anything else with a hand rolled geometry kernel. Even commercial projects use an off the shelf kernel, they're just difficult to write.

Arcuru - 18 hours ago

I didn't realize Paul Lutus had an active blog! I would highly recommend not only reading this post but checking out the author. I read their book Confessions many years ago and it was one of the things that helped push me to look for fulfillment outside of tech.

It looks like he posted this so may see my comment. I just want to say thanks, I appreciate the things you've put out into the world.

hnuser123456 - a day ago

Good timing with this. I had an old maker select v2 from ~2015, and at some point, the SD card got jammed in and ripped the card reader off the PCB, so I just ordered a Core One (preassembled) over the weekend. The CoreXY system (and enclosure) seems more elegant than bed-slinging, but it's evidently more fiddly. Hopefully the enclosure also prevents it from accumulating dust as quickly.

You mentioned you stripped one of the tensioners - does a screw thread into a 3d printed part? Is there a more robust version of the part?

ashoeafoot - 20 hours ago

Has anyone made any experience with printer head changes (similar to factory robots exchanging grippers)?

I dont want the print to pause in some gcode function waiting for me to pick &place

skybrian - a day ago

What practical reasons are there to choose the Core One over an MK4S or vice-versa? The Core One is slightly more expensive.

MikeKusold - a day ago

This article highlights why Bambu has been eating Prusa's lunch the past few years. Imagine spending over $1000 then needing to print parts to get it to work properly.

I swapped my Ender5 for an X1C two years ago, and since then, I have only had to do whatever maintenance the X1C tells me. Using my X1C feels much closer to using my laser paper printer, whereas my Ender5 ended up being a hobby in itself.

lutusp - a day ago

Learn how to set up and use the new Prusa printer. The article includes troubleshooting tips and example projects.