Would you mind posting it when you’re done refining it? I’d like to see what optimal looks like.
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I am still waiting for my H2D, should be shipped tomorrow. A good starting points are the speeds in the standard HF 0.20mm profile and go up from there. Ill post it once i have it worked out.
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Looking at the H2D while its doing its calibrationss, it really does look fast and powerful. Very solid. Just a hunch, but I wouldn’t be surprised if when maximit posts his optimized print profile for the H2D that the H2D may yet prove itself faster than the X1C at producing a print of equal quality, even with just one filament, whereas I’m guessing all the early reviews were based around the speeds attained by a purely generic slicer profile.
The issue is the 0.16mm profile and lower for the h2d is using the settings for the 0.2mm nozzle
This is why you see the weird time jump in the slicer. You can check the profiles yourself. Been known since launch
Also, any color amounts past 3 are going to basically have no real benefit just by nature of needing to swap/perge all but n-2 times.
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I’m finding the H2D faster for larger objects that can accelerate to the higher top speeds (long straight lines). This makes sense because the H2D is mostly faster in all areas except acceleration. So, Bambu did make significant gains, but it had to throw them away when the toolhead weight ballooned.
Smaller items like a benchy are mostly slower because the higher base speeds of the H2D can’t be reach due to the slower acceleration.
However, I can’t put my finger on something. I still feel like something isn’t calculating right in the speeds. In the case of the OP… I’m lost. That makes no sense to me.
As I mentioned above, the 0.16mm and lower profiles on H2D are “high quality” profiles and not standard full speed (nothing to do with the 0.2mm nozzle as someone mentioned though). He is using 0.08mm so its not an apples to apples comparison, unless he changes the X1 profile to “0.08mm high quality” as well. If he will slice with standard 0.2mm profile, or with the X1 on “high quality” as well, the H2D will of course be much faster.
He sliced both with 0.08mm extra fine. It’s an even comparison.
Yes but even though the H2D “0.08mm extra fine” has the same name, its not the same speed! Its a “0.08mm high quality” equivalent on the X1/P1.
As you can see the speeds are more than twice as slow, pretty much the “0.08mm high quality” speeds from the X1.
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I believe this gives a little bit clearer view of the difference in the profile.
Gap Infill is significantly different
Wall speeds are significantly different
Unfortunately, Studio does allow direct comparisons with the H2D and other printers.
If the OP uploads the object 3mf file and NOT the pre-sliced gcode 3mf so I can edit it and tells me how many items are on the plate, I can bump the speeds for him and we will see the H2D do whats its supposed to speed wise.
Why are people saying the H2D has lower acceleration when Bambu specs them both at 20,000 mm/s²?
Yes they are both capable of 20k maximum but on the “0.20mm standard” profiles X1 is set at 10k and H2D is set at 8k. For 0.16mm and lower height H2D is set at 4k.
So TLDR they are both capable of 20k but it is yet unknown what acceleration will yield the best print results. Bambu seems to think 8k is ideal for H2D which is lower than X1s 10k. This makes sense as X1 uses ultra lightweight carbon rods, the H2D uses heavier steel rails + heavier tool head.
They are also marketing it very much as “accurate” with the vision encoder plate etc. So it makes sense they are optimizing the settings for prints with the best dimensional accuracy. For other things that do not require the best dimensional accuracy like statues, decorations etc. you can probably bump the acceleration to 10k or higher.
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What do I need to export? TBH I get confused when exporting ANYTHING; I’m normally the sort of person who just sends a file to the SD card, and leaves all the optimising, bug hunting and clever stuff to other people!
Just the 3mf file before you slice it with all objects on the plate, you can post it through limewire if its too big. Just go to the plate view and click “file” and “save project as”.
Damn…i didnt even know LimeWire was still around.
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Ya I was surprised as well. I was looking for send a large file the other day to someone and when i googled “file sharing no account” limewire popped up! 
Is this what you need?
Link is broken, does not work. Can you double check it please.
This file is probably the single biggest reason for buying the H2D. With two nozzles I expected it to print in about half the time as the X1C does at present - and at the 0.2mm layer height, it does. But I’m normally printing it at 0.08mm layer height, and simply reducing the filament waste REALLY isn’t worth an extra 25% print time 