Search found 170 matches

by Andy Cohen
Fri Apr 22, 2016 5:58 am
Forum: Hardware
Topic: Layer fan did not turn on when resuming print after power loss
Replies: 17
Views: 4754

Re: Layer fan did not turn on when resuming print after power loss

This is not true, at least on the Zortrax. The fan is directed downward, however, airflow around the nozzle and probably around the block, and its attendant convection losses, do increase due to airflow "bouncing" off the bed and other fluid dynamic effects. As I mentioned, I haven't meas...
by Andy Cohen
Fri Apr 22, 2016 1:44 am
Forum: Hardware
Topic: V2 Hot End Information and Q&A
Replies: 73
Views: 39963

Re: V2 Hot End Information and Q&A

So far, so very good. It powered though toolpaths which were guaranteed backwash clogs in V1. It's a 10 hour print and I'm feeling good about it completing.
Prototype Supply, Black PLA using the same profile in Simplify3D that I used with V1.
Looking good!
by Andy Cohen
Thu Apr 21, 2016 11:06 pm
Forum: Hardware
Topic: V2 Hot End Information and Q&A
Replies: 73
Views: 39963

Re: V2 Hot End Information and Q&A

recieved mine as well. was out picking up some ceramic fiber cloth from a local company. they don't sell it in small amounts though. the material is called CeraTex ceramic fiber. It insulates up to 1800 F for constant use. max is 2300 F. going to see what I need to do to make a I had some time this...
by Andy Cohen
Thu Apr 21, 2016 8:09 pm
Forum: Hardware
Topic: V2 Hot End Information and Q&A
Replies: 73
Views: 39963

Re: V2 Hot End Information and Q&A

Just received the package with V2. Looking at the part. I notice the very narrow tube between the heat sink and the hot block. What is the soft material on the tube? The tube no longer extends down into the nozzle and instead is pressure sealed by screwing the nozzle up against the end of the tube. ...
by Andy Cohen
Wed Apr 20, 2016 7:03 pm
Forum: Hardware
Topic: V2 Hot End Information and Q&A
Replies: 73
Views: 39963

Re: V2 Hot End Information and Q&A

Andy if you want i can run a test too (if the print doesnt take days, i really need the printer for production too) So far i have had no problems extruding unless i went and set the feed rate to 350% and even then it didnt clog up just made a print that had poor layer binding, might need to set a h...
by Andy Cohen
Tue Apr 19, 2016 11:25 pm
Forum: General
Topic: new filaments
Replies: 4
Views: 2269

Re: new filaments

Ya I don't think so, I ran an order up with on .5kg spool and shipping was $16, 5 rolls $38, 10 rolls $58. I get my ESUN filament either off Amazon with free Prime shipping, or Intservo directly and get either free or very cheap shipping. Intservo is having an issue with Amazon listing their items ...
by Andy Cohen
Tue Apr 19, 2016 4:52 pm
Forum: Hardware
Topic: V2 Hot End Information and Q&A
Replies: 73
Views: 39963

Re: V2 Hot End Information and Q&A

Andy if you want i can run a test too (if the print doesnt take days, i really need the printer for production too) So far i have had no problems extruding unless i went and set the feed rate to 350% and even then it didnt clog up just made a print that had poor layer binding, might need to set a h...
by Andy Cohen
Tue Apr 19, 2016 4:42 pm
Forum: Hardware
Topic: Layer fan did not turn on when resuming print after power loss
Replies: 17
Views: 4754

Re: Layer fan did not turn on when resuming print after power loss

Having a decrease in temp when the downward fan goes on is only a problem when the downward fan is aimed at the hot block or the hot end. This is not true, at least on the Zortrax. The fan is directed downward, however, airflow around the nozzle and probably around the block, and its attendant conv...
by Andy Cohen
Tue Apr 19, 2016 4:29 pm
Forum: General
Topic: Anyone know what this might be caused by (artifacts in print)
Replies: 12
Views: 4552

Re: Anyone know what this might be caused by (artifacts in print)

The zits could also be just as Zettlinger is presuming... end of the toolpath and change of layer. These are the "zipper" when the spot is the same for every layer. How to eliminate it? Retraction, coast, a bit less heat... Sometimes you can't so it pays to take control over it so you can ...
by Andy Cohen
Tue Apr 19, 2016 5:47 am
Forum: Others
Topic: Shutting down procedure...
Replies: 10
Views: 4538

Re: Shutting down procedure...

Also, as a rule, you should feed some filament before unloading on pretty much every extruder design I've ever touched. There are distinct zones of the filament in the extruder where it must be solid or else if soft, the mechanics will deform the filament maybe leaving it inside that section of the...
by Andy Cohen
Tue Apr 19, 2016 5:36 am
Forum: Hardware
Topic: Layer fan did not turn on when resuming print after power loss
Replies: 17
Views: 4754

Re: Layer fan did not turn on when resuming print after power loss

Having a decrease in temp when the downward fan goes on is only a problem when the downward fan is aimed at the hot block or the hot end. I saw this once on a Taz 2. Even worse if the hot block is not insulated. Regardless, one can set the fan to turn on at 20% on the second layer, 40% on the 3rd et...
by Andy Cohen
Tue Apr 19, 2016 3:05 am
Forum: Hardware
Topic: V2 Hot End Information and Q&A
Replies: 73
Views: 39963

Re: V2 Hot End Information and Q&A

It is now about 3 weeks since i sent you guys a file that reliably choked V1 even with R3D filament. I have yet to hear that V2 successfully prints it using eSun or any other producers filament. As such I am getting a bit worried since in the past Raise3D has shipped products which did not perform a...
by Andy Cohen
Mon Apr 18, 2016 4:56 pm
Forum: General
Topic: Why so cheap?
Replies: 27
Views: 6746

Re: Why so cheap?

I am really curious. TAM just raised the price of the Type 1 to over $4K. The Fusion F306 is over $4000. The Wolf3D is also over $4K. These machines are all larger format Prosumer machines. The casing and Z height methods in the Raise3D machines are superior. The UI front panel and LAN interface is...
by Andy Cohen
Tue Apr 12, 2016 8:22 pm
Forum: Hardware
Topic: So finally my N1 printer found it's home!
Replies: 53
Views: 8883

Re: So finally my N1 printer found it's home!

oops... wait... 40mm. I do 80 as my std speed(120 on the CR1). 40 is REAL slow! Although I did try and set acceleration to 200 (in my start gcode) from the 1000 default and i still got ringing even though you can see it going real slowly on the short paths. My gut is telling me the N1 is simply bet...
by Andy Cohen
Tue Apr 12, 2016 3:39 am
Forum: General
Topic: Welcome to Raisers New Home!
Replies: 28
Views: 23730

Re: Welcome to Raisers New Home!

Thomarann wrote:Marvin is looking a little rough but its my very first print ever and I don't know what I'm doing -- lots to learn, lol.

Marc

Not at all bad for your first print... but all it takes is one and now you are addicted!
by Andy Cohen
Tue Apr 12, 2016 2:03 am
Forum: Feature requests, ideas, wishes
Topic: Front panel UI software
Replies: 4
Views: 2129

Re: Front panel UI software

Andy, I am not sure what's Edward's statement words.There might be some misunderstanding. I think he is pointing to the firmware.N series are partly open source machine. Let me clarify the boundaries as we declared in KS page: 1. Motion board firmware is fully open-source. 2. Compilation toolchain ...
by Andy Cohen
Tue Apr 12, 2016 1:57 am
Forum: Hardware
Topic: How to remove hotend
Replies: 23
Views: 7360

Re: How to remove hotend

RANT: One of my pet peeves with printers is tiny set screws set way down into blocks. If they get gummed up with filament you have to try and remove them hot or else the hex hole strips off! Yes, I've had it happen. May I suggest using regular screws with caps or atleast over sizing the set screws ...
by Andy Cohen
Tue Apr 12, 2016 12:03 am
Forum: Hardware
Topic: V2 extruder skipping
Replies: 16
Views: 4756

Re: V2 extruder skipping

When motor skipping, it means the motor does not have enough torque to push the filament through. 2 ways to resolve. 1: reduce the resistance--higher nozzle temperature to lower the viscosity of the extruding filament and hence lower back pressure and lower resistance 2: increase the motor torque: ...
by Andy Cohen
Mon Apr 11, 2016 11:54 pm
Forum: General
Topic: Buildtak
Replies: 67
Views: 17362

Re: Buildtak

Perhaps an alternative could be the Zebra plate from printinz. I use it on my smaler 3d printers and it works good on PLA, haven´t used it on anything else yet. Unfortunetly it isn´t cheep. I asked them for cost of a size 332mm x 340mm and for a plate its $96 and for the Zebra Skin is $38. anyone u...
by Andy Cohen
Mon Apr 11, 2016 4:17 am
Forum: Hardware
Topic: How to safely remove PLA stuck to Buildtak
Replies: 21
Views: 14386

Re: How to safely remove PLA stuck to Buildtak

This is the good part of N-series printer--it offers you flexibility on these things. If you like BuildTak, then you can use it as it is. If you don't, flip it over and you get a nice glass plate that you can apply glue, spray or whatever. If you don't even like the glass plate, then take it out an...

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