Solved : overheating , Jams , fail Prints , stuck Pro2

Prop-Fiction
Posts: 37
Joined: Fri Jun 15, 2018 10:39 pm

Solved : overheating , Jams , fail Prints , stuck Pro2

Postby Prop-Fiction » Fri Jul 13, 2018 10:49 pm

Hello,
after I've already read some problems in the forum about the pro2 and I have already disassembled by my own stupidity a hotend I also noticed by some members here connections that have occupied me the last few days.
most blockages or printing errors come in my opinion by a single faulty part to conditions.
the throat tube.
A blockage in this can lead to jams in the tube or in the transportation system.
I have already experienced overheating and layer misalignment.
After I have looked at the parts once more I have found a (I think) solution that solves all these problems.
what have i noticed, what are the problems?
1. the throat tube is a bit too tight and has partially on the end pieces a tiny little degree.
2. Overheating of the throat tube on the extruder.
This happens because not enough air circulation on the cooling fins comes. Therefore, the material in front of the nozzle is heated too much and we are sticky. this in conjunction with a too tight throat tube and the jam is programmed.
to the solutions.
the throat tube.
I ground the throat tube slightly from the inside with 1500 sandpaper and polished it from the inside as well.
of course the degree away.
it is only about one hundredth, but that's enough the filament goes through much easier.
the overheating is of course a bit harder to solve.
I ordered a stronger fan first than replacement of the original 50mm fan.
this one is not there yet! Nevertheless, I think the problem I already solved differently.
where to get more cooling when the space is limited.
very easily. we have 3 fans available that are enough ..
the main fan is unfortunately not enough but we still have the side fans.
These are mounted on a sluggish construction. at, the view of this construction I have seen the raise3d already has an air supply to the extruder cooling fins in it, but much too small.!
I have made the supply of the side fans on with a dremel.
not very nice but effective.
as you can see on the pictures original and remodeling.

Image

Here you can see that now the complete extruder head gets air from the front and from the sides.
Image

the temperature is under full load after 8 hours of pressure. (higher pressure temperature, lid on, door closed). constant and he runs perfectly.
The model that I am currently printing I have already started 4 times and now it works.
Of course I'll keep you up to date.
But I'm sure this is the solution.
hope could help you.

Regurts Carsten
Es gibt kein das „geht nicht“, immer nur eine Frage des Geldes oder der Zeit.

Schlaf wird überbewertet.

My Costume website
http://www.prop-fiction.de

JamesW
Posts: 8
Joined: Tue Jul 03, 2018 4:54 pm

Re: Solved : overheating , Jams , fail Prints , stuck Pro2

Postby JamesW » Sat Jul 14, 2018 12:33 am

Wow - I am not willing to make these modifications without the approval of Raise3D but I applaud you for taking the initiative and providing your notes/pictures to us all.
What kind of filament are you using with this test?

Korni
Posts: 91
Joined: Wed Apr 11, 2018 8:11 am

Re: Solved : overheating , Jams , fail Prints , stuck Pro2

Postby Korni » Sat Jul 14, 2018 6:12 am

Understand nothing ... is too English to me ;-)

Naser404
Posts: 27
Joined: Wed Jun 20, 2018 3:33 pm

Re: Solved : overheating , Jams , fail Prints , stuck Pro2

Postby Naser404 » Sat Jul 14, 2018 11:04 am

Great start PropF, but i am just worried that by cutting a larger area for cooling of the fins then your not having enough pressure to send more of that air on the print itself, which is what these side fans are for anyway.

Prop-Fiction
Posts: 37
Joined: Fri Jun 15, 2018 10:39 pm

Re: Solved : overheating , Jams , fail Prints , stuck Pro2

Postby Prop-Fiction » Sat Jul 14, 2018 12:55 pm

Hey, but it will work..
No Problems with The print.
Second 8 Hour Print finished with no Problems .
Looks all good.
Maybe with The new Front Fan it will be ok without the sides

Regurts Carsten
Es gibt kein das „geht nicht“, immer nur eine Frage des Geldes oder der Zeit.

Schlaf wird überbewertet.

My Costume website
http://www.prop-fiction.de

Prop-Fiction
Posts: 37
Joined: Fri Jun 15, 2018 10:39 pm

Re: Solved : overheating , Jams , fail Prints , stuck Pro2

Postby Prop-Fiction » Mon Jul 16, 2018 9:06 pm

Ok that works perfect..
First 28 hours print.
All closed door and hood.
No layer problem, no jams no shifts nothing.
Pla cooling work fine.
I hope raise will make some changes on the printer.
And I hope I get some new parts of the changes :-)
Es gibt kein das „geht nicht“, immer nur eine Frage des Geldes oder der Zeit.

Schlaf wird überbewertet.

My Costume website
http://www.prop-fiction.de

User avatar
Jiter
Posts: 18
Joined: Mon Jul 02, 2018 6:14 am
Location: Germany

Re: Solved : overheating , Jams , fail Prints , stuck Pro2

Postby Jiter » Tue Jul 17, 2018 5:18 am

So, essentially there is cooling missing and all that is caused by Heat-Creep?
Raise, you should know better...
Can you (Raise3D) say something to this issue?
Cheers, David
If you can dream it, you can print it! :lol:


Return to “Pro2 Series”

Who is online

Users browsing this forum: No registered users and 1 guest