MMU2.1
Isn't it about time to get a MMU2.1?
It has been long time since last hardware/firmware update.
The community is releasing updates more performant than Prusa.
Some hardware items are not used as knife, filament sensor,...
Most people still like the concept, but it remains a struggle to get it working reliably.
Other MMU alternatives are being released on the market, which seem to be working reliably and easier to set up.
I still believe in it, but I think some improvement is needed.
Re: MMU2.1
I say Prusa should ditch the bowden tube method, and...
wait for it...
go with QUINTUPLE EXTRUDERS!
Speak of the devil though, new Slic3r alpha was released:
https://github.com/prusa3d/Slic3r/releases/tag/version_1.42.0-alpha4
I'm really curious what are causing the shipping delays though. They are over 6 weeks behind the schedules that were posted in November/December. Was supposed to get my MMU in mid December, and it's still on backorder 😯
Hopefully they are just sourcing some new, upgraded parts, and are doing some final testing to ensure they are TOP QUALITY. I can hope, anyway.
Re: MMU2.1
It has been long time since last hardware/firmware update.
MK3 Firmware 3.5.1 : 12/19
MMU2 Firmware 1.03 : 12/17
Today: 01/28
Doesn't look like "long period of time" to me. 3.5.2 should be released soon, there a 106 commits already done. Slic3r will get major update soon, too.
The community is releasing updates more performant than Prusa.
This is a nature of open source. Everybody is adjusting stuff for their needs and publish it. PR can't do it. They need to make sure this changes doesn't break something different and is working fine for most of the people. Because they need also to support this change afterwards. If people doesn't go the official route through the github pull request, it takes a lot more time to PR to implement it in the main branch.
They started shipping MMU2 in Oktober 2018. I don't expect MMU2.1 before fall this year. It's way too early for any hardware upgrades.
Often linked posts:
Going small with MMU2
Real Multi Material
My prints on Instagram
Re: MMU2.1
It's way too early for any hardware upgrades.
Not necessarily. The Mk3 has been out for a while and I would think an upgrade is due. There are a few Mk3 upgrade which would also significantly benefit the MMU2.
Peter
Please note: I do not have any affiliation with Prusa Research. Any advices given are offered in good faith. It is your responsibility to ensure that by following my advice you do not suffer or cause injury, damage…
Re: MMU2.1
Not necessarily. The Mk3 has been out for a while and I would think an upgrade is due. There are a few Mk3 upgrade which would also significantly benefit the MMU2.
No question about the benefit. But there are only couple people working 40 hours a week on multiple things. A new hardware release only after 3 month is kind of very very fast. I know some Chinese companies are doing that and the result is a wild revision jungle without any support from this companies.
Often linked posts:
Going small with MMU2
Real Multi Material
My prints on Instagram
Re: MMU2.1
I'm really curious what are causing the shipping delays though. They are over 6 weeks behind the schedules that were posted in November/December. Was supposed to get my MMU in mid December, and it's still on backorder 😯
Hopefully they are just sourcing some new, upgraded parts, and are doing some final testing to ensure they are TOP QUALITY. I can hope, anyway.
I am still waiting for mine so if they are fixing it I will wait.
Re: MMU2.1
as far as ive noticed the biggest thing that can help failed prints in turning on the filament sensor at the extruder.
that cant be that hard to do. I know someone else turned it on,
I have a Prusa,therefore I research.
Re: MMU2.1
as far as ive noticed the biggest thing that can help failed prints in turning on the filament sensor at the extruder.
that cant be that hard to do. I know someone else turned it on,
The problem is that the optical sensor is not 100% reliable and both printer and MMU firmware need changes.
Peter
Please note: I do not have any affiliation with Prusa Research. Any advices given are offered in good faith. It is your responsibility to ensure that by following my advice you do not suffer or cause injury, damage…
Re: MMU2.1
as far as ive noticed the biggest thing that can help failed prints in turning on the filament sensor at the extruder.
that cant be that hard to do. I know someone else turned it on,
The problem is that the optical sensor is not 100% reliable and both printer and MMU firmware need changes.
Peter
ya but better let people decide if they want it. mine hasn't been too bad, but if I could use it with the mmu I would spend extra time figuring out what was wrong if it had an issue.
I would rather have it sit there like a dumbass than have a skipped layer.
I have a Prusa,therefore I research.
Re: MMU2.1
ya but better let people decide if they want it. mine hasn't been too bad, but if I could use it with the mmu I would spend extra time figuring out what was wrong if it had an issue.
I would rather have it sit there like a dumbass than have a skipped layer.
Chris, it will not stop skipped layers. It's too high up and does not register when the filament is actually loaded into the Bondtech.
If you recall, I posted a photo a while back with a PINDA triggered by the idler door. I have moved on since then, but I think that principle is the way to go.
Peter
Please note: I do not have any affiliation with Prusa Research. Any advices given are offered in good faith. It is your responsibility to ensure that by following my advice you do not suffer or cause injury, damage…
Re: MMU2.1
its more about the part. of if we know the sensor is on (and working) we know FORSURE the filament gets to it. everyone seems to have different issues.
if you get what mean.
on a side note
being new to Bowden tubes I think they seem to last around 3 months. does that sound about correct (high traffic tips)
I have a Prusa,therefore I research.
Re: MMU2.1
being new to Bowden tubes I think they seem to last around 3 months. does that sound about correct (high traffic tips)
Strictly speaking, the MMU2 does not have a Bowden tube, MMU1 had 4 and my two Mk2 printers with MMU1 are still working and have the original Bowden tubes.
My first good prints from MMU2 are from early August last year, so that's over 5 months with no problems.
Peter
Please note: I do not have any affiliation with Prusa Research. Any advices given are offered in good faith. It is your responsibility to ensure that by following my advice you do not suffer or cause injury, damage…
Re: MMU2.1
ok. trying to figure out my why the curved tips of my filament seem to be deforming tubes (curl of the roll kinda thing) fresh cut. I might mount my rolls backwards so it gets a "anti curl" going
I have a Prusa,therefore I research.
Re: MMU2.1
as far as ive noticed the biggest thing that can help failed prints in turning on the filament sensor at the extruder.
that cant be that hard to do. I know someone else turned it on,
I don't suppose you can point me in the direction of any information on how they did that? I've been looking for the last few days and haven't found anything useful.
Chris, it will not stop skipped layers. It's too high up and does not register when the filament is actually loaded into the Bondtech.
Even if it doesn't stop 100% of them, if it stops even half I'd be thrilled. For the last week or so I've been trying to get through a very long print and have had every attempt ruined 10+ hours into them by a single material that all of a sudden won't go more than a couple inches past the MMU2 selector. It's not getting anywhere near the sensor in the extruder... had that sensor actually stopped the print because it didn't see anything go by, I'd have been ecstatic... instead I had to google why it wasn't working and learn that in the current firmware, even though I've enabled it on the printer, it's not actually being used... just because I have the MMU2 option installed.
When I get done with this current print project I have a large one queued up that is all single material... I think I'm going to explore what would happen if I flashed the non-MMU frimware back onto my printer and disconnected the wires to the MMU... I can feed a spool a filament through a longer PTFE tube to get to the extruder. Pretty sad that I'm going to have to do all that just to use the upgraded smarts in the printer I paid for. 😡
Re: MMU2.1
as far as ive noticed the biggest thing that can help failed prints in turning on the filament sensor at the extruder.
that cant be that hard to do. I know someone else turned it on,
I don't suppose you can point me in the direction of any information on how they did that? I've been looking for the last few days and haven't found anything useful.
"zero beast" firmware
I am still stock firmware tho. but I hear it works. think it has a bug with something.
I have a Prusa,therefore I research.