Replacement Nozzle

[dgirard]

Is anyone else still waiting on the replacement Nozzle?

I was having a heck of a time calibrating due to the oozing problem with the original nozzle...so I stopped working with the machine once I heard there was a new nozzle coming!

Well...it's been painful watching my rostock just sitting there doing nothing while I wait...

Perhaps I'm just being impatient..but I've only seen posts from others who have their replacement (from 2 weeks ago)...so I'm wondering if there are multiple batches going out and I'm just in a later batch...

Anyone else still waiting?

[gabrielk]

i'm also waiting for new one

[aehM_Key]

Me 2, but I'm in Europe.

[barnett]

I ordered the free nozzle replacement on Feb 7th but when I checked last week, John at seemecnc told me they were out of stock and that it would be another week. So maybe they get more this week?

[fredini]

What's the deal with the free replacement nozzle(Sorry- I was away for a month)?
I just ordered a new one from the store, but would love to get in on the free replacement!

[johnoly99]

Hey all, just popping in, somehow managed to find a minute?

The new nozzle was for anyone who ordered a rostock prior to around early january. We (well, steve) designed a new nozzle to help with the retraction on the LARGE bowden we use. It also has a much larger melt zone, to take advantage of the speeds the RMAX is capable of.

If your kit shipped after january ~15th, you got the new style, if not, you were put on a list, as well as anyone who emailed to confirm. Yes, we ran out of nozzles! We decided to give everyone who ordered a machine a new style, even if they didn't email, so that, combined with all the parts needed to keep up with daily orders, I couldn't keep up

More nozzles dropping out of the mazaks as we speak, if you havn't yet, expect to see the nozzles in the mail starting this week


Thanks again guys, sorry I havn't been on here much, and it's soo friggin awesome to see all youguys, and recognize your names, and see everyone helping everyone out! That's what it's all about, we will all be better becuase of all

[dgirard]

Thanks John!

I just wanted to make sure mine wasn't lost in the shuffle...

It's been an adventure!...

looking forward to getting printing again!

David

[JakeCShake]

GREAT CUSTOMER SUPPORT..... From what Ive heard from my bro....you guys always come though. Wish I had more contact with the machine.....Awesome....

[msdevstep]

John,

I ordered my rostock on the indiegogo campaign and didnt know about the free nozzle replacement. I ordered a new one and got it in the mail today. Is there a coupon code or something you could give me for future purchases I make to offset the cost of me buying it, or I would even take an extra one if at all possible. I have been struggling with the old nozzle for months now and its good to know that it was the nozzle and not me.

[cambo3d]

whats the verdict on the new nozzle?

[Zodd]

Just made my new nozzel today myself with 0,30mm (1:1 copy except the 0,30mm) and it was a pain in the a.. With the US only UNC 3/8"-24 thread... No one in EU or in the world using this and it was hard do made with a lathe without the right tools...

Maybe for future 3d printers: do it with more common threads :/

[daftscience]

Maybe for future 3d printers: do it with more common threads :/

But it's really common here... Good ol 'murka.

Seriously though, I work in the scientific/medical field so my brain is in metric. I don't know if its different for engineers but the imperial system drives me insane. If my 7/16' wrench is too small I don't want to do division to figure out I might need the 1/2' wrench. 11mm is too small? Oh let me try 12mm.

[Zodd]

Pipe wrenge is your friend here..

BTW is there a minimum size limit for the noozle? I only seeing 0.35, 0.50 and 0.70mm.
Would 0.10 or 0.20mm also work for smale objects or even better then the standard 0.35 for abs prints?

[mhackney]

The smaller the orifice the more difficult it is to use! Even a .35mm orifice requires a lot of skill to dial in and use. At some point, the extruder can not generate enough pressure to push through the smaller hole and will slip and/or destroy the filament. I know some work has been done at smaller openings but I've only ventured to .35mm. AND, it takes A LOT longer to print things!

[Polygonhell]

Pipe wrenge is your friend here..

BTW is there a minimum size limit for the noozle? I only seeing 0.35, 0.50 and 0.70mm.
Would 0.10 or 0.20mm also work for smale objects or even better then the standard 0.35 for abs prints?

If you've never setup a printer before use a 0.5mm nozzle, they are a lot more forgiving.
All you really get with a smaller nozzle is sharper corners and a better top finish, you don't really get any extra resolution, printing at really low layer heights is as much about perfect mechanical setup, the plastic (PLA is a lot easier to deal with at low layer heights) and getting the temperature and cooling right for the plastic in question than it is about smaller nozzles.
A lot of people use 0.35mm extruders print times tend to be a lot longer, it requires much more pressure to extrude and I wouldn't use one on the SeeMeCNC extruder with 1.75 ABS because it would just exacerbate the buckling filament issue.
I know of people who've printed with 0.2mm nozzles, but the back pressure at that point is ~10x what it is on a 0.5mm nozzle and your getting down into the borderline impractical range.

[barnett]

In case anyone is still waiting on the new nozzle, I can report mine arrived earlier this week. It will be several days before I can attach it, but at least it's here.

[Av8r RC]

Just made my new nozzel today myself with 0,30mm (1:1 copy except the 0,30mm) and it was a pain in the a.. With the US only UNC 3/8"-24 thread... No one in EU or in the world using this and it was hard do made with a lathe without the right tools...

Maybe for future 3d printers: do it with more common threads :/

Tell me about it. I have a Budaschnozzle hotend I want to try on my max. But before I use it I want to make a brass threaded body for it, ruined too many trying to swap out nozzles. But they designed the dang thing with one of the hardest to source size threads M10 x 1 (at least here in the US). I suspect they do it so its harder for the common folk to produce their own replacement parts.

Maybe for future 3d printers: do it with more common threads :/

But it's really common here... Good ol 'murka.

Seriously though, I work in the scientific/medical field so my brain is in metric. I don't know if its different for engineers but the imperial system drives me insane. If my 7/16' wrench is too small I don't want to do division to figure out I might need the 1/2' wrench. 11mm is too small? Oh let me try 12mm.

Damn imperial system!! Here at work I'm constantly having to convert metric to std for half of the parts we make.

USA just grow a pair and learn metric! Join the rest of the world.

The smaller the orifice the more difficult it is to use! Even a .35mm orifice requires a lot of skill to dial in and use. At some point, the extruder can not generate enough pressure to push through the smaller hole and will slip and/or destroy the filament. I know some work has been done at smaller openings but I've only ventured to .35mm. AND, it takes A LOT longer to print things!

Pipe wrenge is your friend here..

BTW is there a minimum size limit for the noozle? I only seeing 0.35, 0.50 and 0.70mm.
Would 0.10 or 0.20mm also work for smale objects or even better then the standard 0.35 for abs prints?

If you've never setup a printer before use a 0.5mm nozzle, they are a lot more forgiving.
All you really get with a smaller nozzle is sharper corners and a better top finish, you don't really get any extra resolution, printing at really low layer heights is as much about perfect mechanical setup, the plastic (PLA is a lot easier to deal with at low layer heights) and getting the temperature and cooling right for the plastic in question than it is about smaller nozzles.
A lot of people use 0.35mm extruders print times tend to be a lot longer, it requires much more pressure to extrude and I wouldn't use one on the SeeMeCNC extruder with 1.75 ABS because it would just exacerbate the buckling filament issue.
I know of people who've printed with 0.2mm nozzles, but the back pressure at that point is ~10x what it is on a 0.5mm nozzle and your getting down into the borderline impractical range.

It has been a little harder to work out the bugs since I swapped over to a 0.35 nozzle. I had to do it to make some prototype parts for a customer. And in this one part (making 5 of them) my speeds range from 5mm/s (perimeter) to 40mm/s (infill). Parts only 1.2mm thick, 122mm OD, 100mm ID, w/160 1.2mm holes, 0.15 layer height it takes an astonishing hour and a half to print.

If I were using the 0.5 nozzle I could have gotten it done in half the time, but had to use the small nozzle because a row of holes are so close to the ID I couldn't make it correctly with the 0.5.

[Polygonhell]

My favorite part of the US being stuck in the imperial system is when you get things that are half and half.
I have a car in my garage, every part of the drive train forwards on the transmission is imperial, everything from the transmission back is metric.
The bell housing has imperial fasteners on the front and metric on the back......
I'm all for a metric revolution, if only because I'd like to buy reasonably priced metric hardware at my local hardware store.

[theverant]

My favorite part of the US being stuck in the imperial system is when you get things that are half and half.
I have a car in my garage, every part of the drive train forwards on the transmission is imperial, everything from the transmission back is metric.
The bell housing has imperial fasteners on the front and metric on the back......
I'm all for a metric revolution, if only because I'd like to buy reasonably priced metric hardware at my local hardware store.

Maybe they are upgrading your model of car to metric, incrementally over model years?

[jesse]

Is anyone else still waiting on the replacement Nozzle?

I received the new free replacement nozzle earlier this week and installed it today.

There's about 5 to 10 mm of extra metal going inside the hot end. The amount of stored melted plastic is probably double.

The teflon tube needed to be trimmed so I guess going back to the other nozzle requires more Teflon.

[aehM_Key]

The amount of stored melted plastic is probably double.

I had in mind that the new nozzle stores less plastic..I'm a bit confused now

[Polygonhell]

The amount of stored melted plastic is probably double.

I had in mind that the new nozzle stores less plastic..I'm a bit confused now

It has a larger melt zone and I think a shorter nozzle orifice which I can't easily verify.
This results in a much lower extrusion pressure.
IMO the new nozzle is a lot better than the old one.

[aehM_Key]

Ok, thanks!