What is the max speed you have attained?

[Lasivian]

Thanks

[JohnStack]

Hi! That's an open-ended question. You try to get max out of specific things you're trying to print based on it's characteristics (layer thickness, materials, desired quality, etc)

Also, I've generally just used %s instead of mm/s...

You might search the forum a bit. I think there was a video a long long time ago of someone futzing with print speeds. Can't remember who did it. They tried several prints at different speeds and in each, the quality went down (as it should after a point).

[UnLtdSoul]

I'm fairly new also, got my RMax set up in Feb, and, I've been having issues with the EZstruder that I haven't pinned down yet. I have only printed in PLA, Nylon 645 and t-glase, I haven't printed in ABS yet. I haven't got a usable part from nylon yet, mainly due to trying to print larger parts and they have, everyone of them, lifted off on one side and messed up. But it is also too soft and pliable for what i need, so I haven't bothered with it since. The issue I'm having with the EZStruder I'll cover in a new thread to see it anyone can help me out with that, but, when it doesn't act up, I generally set the printer to 30mm/s for both fill and perimeter, and 80% for outside perimeter. 60% for the first layer. At first i was printing at .35 first layer height and .2 other layers, but, for much of what i need i found lower resolution was fine, so now i print at .5 mm for all layers for most prints. When i want fine, i've gone down to .2 for first and .1 for other layers, which right there takes 5x longer to print than .5mm prints. And, I often slow those down to 20mm/s, which again makes those prints longer. But, you can get a fairly smooth print that way, but i have to keep the part size down or it could take days to print. (much of what I'm printing is fairly large). I've been printing a number of 'jigs' or patterns to use with my router and table saw and drill (until i can afford to build a 4 or 5 axis CNC machine).

When the prints are going good, I sometimes crank up the speed from either the PC - Repiteir Host, or directly from the menu on the printer. Pushing 30mm/s by 130% brings it right up to 40m/s using PLA or t-glase. So far, the prints are fine for what i'm needing, but, if the EZ-struder starts balking at the speed, then i have to slow it down. But, i have other issues going on with the EZ-struder, and sometimes it acts up even if i slow the print way down to 12 mm/s, so that is another issue.

I should also say that I have a 20mm peek fan on the platform, but, not the printed housing. I had a housing on there, but i moved my hot head over to make room to add a second head, which i never did get time to complete, so my head is now off set from center and the fan shroud doesn't fit, For now I've just put some blue tape on the platform to catch the air from the fan onto the peek better, works ok for now.

But, I'm just a noobee, I don't have that much experience, so i would also be interested in hearing some numbers and settings from other, more experience users.

[Jimustanguitar]

If you're bogging down your extruder, it sounds like you might want to up your hot-end temperature. Where do you have it set at normally?

Be careful when doing this. The temperature that PEEK plastic melts at is (I think) around 145, so you want to be hot enough to extrude smoothly, but not too hot to ruin your hot-end.

[Flateric]

This was awhile ago, and the result was what I would call tolerable, nothing steller, the video also seems a little slower than real life, but hey.

https://www.youtube.com/watch?v=4QBdDmWD5kc

[Polygonhell]

With PLA you can print really very quickly, at some cost to quality! but you have to increase the temperature to do it. Unlike ABS, PLA. Gets more and more liquid with increased temperature, until it burns.
I usually run 40-60mm/s perimeters with infill in the 80 to 150mm/s and that results in pretty good quality prints. Once you have have decent print quality, just increase the speeds, if the extruder starves, increase the temperature. Pick the compromise between speed and quality that works for you.

[joecnc2006]

Printing ABS. 30mm/s at 300%

[youtube]http://www.youtube.com/watch?v=VVV6UFZxcZQ[/youtube]