Search found 24 matches

by gr5
August 23rd, 2018, 10:35 am
Forum: PLA Filament General Discussion
Topic: Revive a spool of brittle PLA - is it possible?
Replies: 4
Views: 644

Re: Revive a spool of brittle PLA - is it possible?

90% of the time when I have brittle filament - it is only the outer meter or so. Try throwing away a meter or two and see if the rest of the filament is fine. For some reason straightening the filament (removing it from the spool) for several days causes it to be brittle. The filament still on the s...
by gr5
November 8th, 2017, 4:06 pm
Forum: General Discussion
Topic: Printing PEEK on Ultimaker
Replies: 3
Views: 2966

Printing PEEK on Ultimaker

Rajil Pahuja is printing PEEK and it looks real good. Other materials also like PEI but PEEK is the most diffiult. Here is a post about it on the UM forum: https://ultimaker.com/en/community/51853-topic-for-printing-ht-filaments-peek-ultem-1010-ultem-9085-ppsu-psu-on-um2 and here is a video of print...
by gr5
September 27th, 2017, 11:53 am
Forum: General Discussion
Topic: Ultimaker Software News, Cura 3, Cura Connect etc.
Replies: 29
Views: 10306

Re: Ultimaker Software News, Cura 3, Cura Connect etc.

I do my own support about 70% of the time. It doesn't matter who designed it but usually I'm the designer. I don't think it's only 1% of people who print their own prints . I guess we all think everyone else is just like ourselves. Which is actually a healthy attitude. I expect it's at least 80% of ...
by gr5
July 17th, 2017, 3:23 pm
Forum: Ultimaker 2 / Ultimaker 2+ / Extended & Go
Topic: Super hard nozzles - Test pilots
Replies: 438
Views: 78077

Re: Super hard nozzles - Test pilots

I agree. I have a few .25mm but haven't sold any. Ruby is good for abrasive materials and those are more likely to clog a .25mm.

So are you working for 3dverkstan now?
by gr5
July 17th, 2017, 10:20 am
Forum: Ultimaker 2 / Ultimaker 2+ / Extended & Go
Topic: Super hard nozzles - Test pilots
Replies: 438
Views: 78077

Re: Super hard nozzles - Test pilots

Nice! 3dsolex also has multiple sizes of ruby/sapphire nozzles: 0.25 0.4 0.6 0.8 1.2 for both e3dv6 (UMO,UM2) style and for UM3 nozzles. Would that nozzle on the right in the photo above fit in a UM3 core?

I'm not sure .25mm ruby makes sense though.
by gr5
January 28th, 2017, 12:14 pm
Forum: Ultimaker 2 / Ultimaker 2+ / Extended & Go
Topic: Block v3 or Olsson Block
Replies: 18
Views: 5473

Re: Block v3 or Olsson Block

No I mean I'm still happy without any modifications at all other than the Olsson block. No iRoberti feeder. But I *did* have the iRoberti feeder on one of my 4 um2 machines for a year and it was great. Now I have the bond tech (I was asked to test it out). The bond tech is still sitting on my most-u...
by gr5
January 28th, 2017, 11:29 am
Forum: Ultimaker 3 / Ultimaker 3 Extended
Topic: New heater block to fit standard nozzles on Ultimaker 3
Replies: 58
Views: 14386

Re: New heater block to fit standard nozzles on Ultimaker 3

So far I have been able to do cold swapping of nozzles on all my Olsson blocks and all my block V3 changes and all my hardcore changes. At this point I know how much force is "safe" on these (it's about the same force on all of them I think - somewhere around 4-6nM the nozzles break). However doing ...
by gr5
January 28th, 2017, 11:13 am
Forum: Ultimaker 2 / Ultimaker 2+ / Extended & Go
Topic: Block v3 or Olsson Block
Replies: 18
Views: 5473

Re: Block v3 or Olsson Block

I've used both the "Olsson" block from 3dsolex and the V3 block from 3dsolex and I find the Olsson block to be a huge improvement from not having it at all but the block V3 is only a minor improvement. It has better heat transfer but I guess I never push my machine to the limits. I mean I am still h...
by gr5
January 28th, 2017, 11:09 am
Forum: Ultimaker 3 / Ultimaker 3 Extended
Topic: New heater block to fit standard nozzles on Ultimaker 3
Replies: 58
Views: 14386

Re: New heater block to fit standard nozzles on Ultimaker 3

Very cool modification neotko! I'm surprised the screw on the front of the core doesn't get hit by the internal metal piece inside the UM3 head when you swing the door closed. I didn't think there was room enough for a screw head that big.
by gr5
January 9th, 2017, 3:08 pm
Forum: Ultimaker 3 / Ultimaker 3 Extended
Topic: New heater block to fit standard nozzles on Ultimaker 3
Replies: 58
Views: 14386

Re: New heater block to fit standard nozzles on Ultimaker 3

>For a 0.8 nozzle it would be just double flow.
4X the flow. But we know what you mean.
by gr5
January 5th, 2017, 5:16 pm
Forum: Ultimaker 2 / Ultimaker 2+ / Extended & Go
Topic: Super hard nozzles - Test pilots
Replies: 438
Views: 78077

Re: Super hard nozzles - Test pilots

Sorry didn't test just the race nozzle change. I did 12 tests. It was a pain changing blocks and feeder systems so I didn't do as many as I wish. I had printing speeds from 7mm^3/sec to 31mm^3/sec depending. Here's probably the 4 most interesting: bondtech feeder, 220C .4mm nozzle: olsson block and ...
by gr5
January 5th, 2017, 4:26 pm
Forum: Ultimaker 2 / Ultimaker 2+ / Extended & Go
Topic: Super hard nozzles - Test pilots
Replies: 438
Views: 78077

Re: Super hard nozzles - Test pilots

The shininess of the block v3 is just for looks. It does not extend internally so it is no harder or slippier inside. Although it can make nozzle cleanup easier I have noticed. Not that I care about that. I'm not going to claim that matchless is any better than olsson blocks but they might be. Some ...
by gr5
January 1st, 2017, 8:33 am
Forum: Ultimaker 2 / Ultimaker 2+ / Extended & Go
Topic: Zero Gravity Direct Drive Extruder
Replies: 37
Views: 10163

Re: Zero Gravity Direct Drive Extruder

Great post gudo! A happy new year present to the community!
by gr5
January 1st, 2017, 8:33 am
Forum: Ultimaker 2 / Ultimaker 2+ / Extended & Go
Topic: Zero Gravity Direct Drive Extruder
Replies: 37
Views: 10163

Re: Zero Gravity Direct Drive Extruder

I think this will work with a foehnsturm dual head style solution also as long as the non printing head is parked in a corner adjacent to the corner with the feeder steppers and not in the opposite corner and not in the same corner.

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