but my particular projects (rockets) need to be very bright and glossy

Have either of you run tests to see how much layer lines and VFA's affect drag?   Do they hinder or like golf-ball dimples, assist?

Otherwise for bright and glossy I would wet sand, under-spray, lightly dry sand and over-spray - possibly finishing with polishing.

Cheerio,

Posted by: @hyiger

 

Posted by: @cedric

We got a h2d at work recently, the automation and useability is good, but im not very impressed by the print quality so far, at least with std profiles and bambu filament, my c1 would be slightly better in most cases. I was surprised to see some ringing for example. Maybe its like the c1 and there are some examples that are better than others.

I guess it's hit-or-miss.

think that is the key statement.

Posted by: @cedric

We got a h2d at work recently, the automation and useability is good, but im not very impressed by the print quality so far, at least with std profiles and bambu filament, my c1 would be slightly better in most cases. I was surprised to see some ringing for example. Maybe its like the c1 and there are some examples that are better than others.

I guess it's hit-or-miss. As you know, I am very meticulous about calibrating filaments across all my printers and nozzles.  

On my C1, even after carefully tuning the belts and running the input-shaper calibration, I was still getting terrible ringing and ghosting with PC Blend. I was able to reduce it somewhat by drastically slowing down the max flow rate and perimeter speeds but then my print times shot up to double or triple. Since the parts I was printing were not only functional but also cosmetic, it was unacceptable. Matte and filled filaments will hide this but my particular projects (rockets) need to be very bright and glossy to make them easier to spot. I doubt the ringing affected performance but the esthetics bothered me. 

Same parts on the H2D, I still have some ringing but it's not as noticeable and I really have to look for it.  In general, the H2D most definitely outperforms the C1 with engineering filaments due no doubt to having active heating (and a 350° nozzle). There is also negligible skew in the XY plane as opposed to my C1 which has a -0.15° skew which I needed to compensate for. As for commodity filaments like PLA/PETG etc, I don't really notice much of a difference between the two. 

However, the C1 does better with TPU and other flexibles like PEBA-Air. It is much easier to print them on a C1. 

When the INDX is ready, it will be superior for multi-color for sure but less so for multi-material. I still don't see myself doing a lot of multi-color so the novelty might wear off quickly. Will see. 

Posted by: @wdlandry

I have mixed feelings about prusa support, not sure it’s as good as people make out. In my experience they make you dance through hoops and at times treated me like a fool. If I had a penny for ever time I got asked if the belts were tensioned properly…  but I got there eventually with my issues. Only took months 😂 however they likely remain one of the only companies that will continue to provide support even if you modify the device. So there’s that at least 

Second problem: poor extrusion.  I start printing with it and I could get the flow rate right.  They send me a new hotend assemble and that seem to correct that for the most part.  

Lastly, Layer shifts, VFAs, and nozzle clogs on every other print.  I spend about 2 weeks trying to get it corrected.  I am 100% certain it was mechanical in nature.  I tried everything I know as an experienced user and multiple hours doing searches and discussing it with support.  Prusa’s support is so much more responsive and helpful.  

Posted by: @jurgen-7

Posted by: @cwbullet

I must have gotten a lemon.  I returned my H2D after 30 days of trying to get support and support unable to help.  I have not had many issues with my Core One.  

Sorry to hear that. What functional issues did you encounter with the H2D?

Bambu's email support works about as well (or as poorly) as Prusa's email support: Turnaround times of two days, applicable also in every round of follow-up emails. But Bambu does not offer the equivalent of Prusa's online chat of course.

Second problem: poor extrusion.  I start printing with it and I could get the flow rate right.  They send me a new hotend assemble and that seem to correct that for the most part.  

Lastly, Layer shifts, VFAs, and nozzle clogs on every other print.  I spend about 2 weeks trying to get it corrected.  I am 100% certain it was mechanical in nature.  I tried everything I know as an experienced user and multiple hours doing searches and discussing it with support.  Prusa’s support is so much more responsive and helpful.  

Posted by: @jurgen-7

Posted by: @cwbullet

I must have gotten a lemon.  I returned my H2D after 30 days of trying to get support and support unable to help.  I have not had many issues with my Core One.  

Sorry to hear that. What functional issues did you encounter with the H2D?

Bambu's email support works about as well (or as poorly) as Prusa's email support: Turnaround times of two days, applicable also in every round of follow-up emails. But Bambu does not offer the equivalent of Prusa's online chat of course.

Sorry to break the bad news but corporate magic is absolutely baseline freakin' mandatory to melt thermoplastics into a predefined shape. Really. Otherwise, I don't know, bad things would happen. Maybe they refuse to melt. Or worse.

You're the buyer. They are the seller. Deal with it :D