TAZ speed

[Andrew Ricke]

I'm guessing you had a lot more short moves as a % of the whole.  That would leave you more limited on acceleration than the general speed increases could gain back on longer moves.  It also depends on what speed you set 100% to. 

On Wednesday, February 11, 2015, Robert Kleeschulte <rob...@gmail.com> wrote:

Changing the speed on the TAZ to from 100% to 150% only brought my time from 4h47m to 4h33m.

It may have looked faster, but didn't speed up print as much as I thought it would.

On 2/11/15 4:33 AM, Space Switch wrote:

The Space is closed at 4:33am on February 11th, 2015.

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[Morganism]

I don't know if I have the complete answer, but I do have a few thoughts.

-Andy is right, the original speed it was set to matters. If you set to 50mm, and move to 150% that only takes you to 75mm. If was set to 100mm, then you go to 150mm, a very different move.

-Secondly, I have heard, but not confirmed, that there is a firmware limit of ~150mm that the machine will run at. This is regardless of the speed shown on the screen. You can run it at 250%, but the firmware will only let it go so fast. If you set to 125mm, and moved up to 150% you still may have been running at 150mm instead of 187.5mm.

-Finally, Cura's time estimate is notoriously wrong. If Cura was telling you it was going to be 4h47 minutes, I would expect it to be a minimum of a 5-6 hour print. Possibly longer. In which case, the 4h33m it actually may, in fact, have been 150% faster than you where you started at. Additionally, the progress bar is based on lines of gcode. Therefore it is accurate to show how much is left in the print. However, not all lines of code take the same amount of time to print. The last half may go very quickly if it is all small lines, while the first half may take longer if there are long base lines to print.

I hope this was helpful.

-Morgan

On Wednesday, February 11, 2015 at 6:51:30 PM UTC-6, Andy Ricke wrote:

I'm guessing you had a lot more short moves as a % of the whole.  That would leave you more limited on acceleration than the general speed increases could gain back on longer moves.  It also depends on what speed you set 100% to. 

On Wednesday, February 11, 2015, Robert Kleeschulte <rob...@gmail.com> wrote:

Changing the speed on the TAZ to from 100% to 150% only brought my time from 4h47m to 4h33m.

It may have looked faster, but didn't speed up print as much as I thought it would.

On 2/11/15 4:33 AM, Space Switch wrote:

The Space is closed at 4:33am on February 11th, 2015.

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[Robert Kleeschulte]

The Cura estimate was actually around 2hours. The first print I did was 4h47m and the second was 4h47m the 3rd at 150% was the 4h33m. These are the upper frame connectors for the Griffin that was being printed.

I can see what you mean about the 50mm only going to 75mm, I will have to check back on Cura to see what the speeds were set at.

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[Chris Weiss]

there is a firmware max speed but i don't know what it is, and you're
not going to ever reach it unless you have some long strait lines,
which that headpiece has very few of.

other than changing layer heights and infills and wall thicknesses,
all which can adversely affect the strength of the final part, the
only other thing you might be able to do is rotate the piece so that
the strait lines it does have are aligned on one axis. this is still
going to be minor though. that's a fairly large part and it's just
going to take a while to print.

[Robert Kleeschulte]

These are the setting that I have been using for Cura on the TAZ with almost all of my prints other than changing infill percentage.

My Print Settings
.2 layer height
.8 shell thickness
70% infill
Travel 150mm/s
Bottom Layer 40mm/s
infill 100mm/s
outer shell 75mm/s
inner shell 80mm/s

After first few layers on the TAZ I go to 150% on the speed