Search found 28 matches

by gr5
March 15th, 2021, 10:47 pm
Forum: Ultimaker 2 / Ultimaker 2+ / Extended & Go
Topic: Super hard nozzles - Test pilots
Replies: 446
Views: 440874

Re: Super hard nozzles - Test pilots

CF Nylon is great but it can ruin not just your nozzle, but also your feeder so get a bondtech feeder first (hardened feeder gears).
by gr5
March 15th, 2021, 10:46 pm
Forum: Ultimaker 2 / Ultimaker 2+ / Extended & Go
Topic: Super hard nozzles - Test pilots
Replies: 446
Views: 440874

Re: Super hard nozzles - Test pilots

Last March 2020, you said something like "In january I thought 'this is my year' and today I'm wiping my ass with a coffee filter!"

LOL!
by gr5
March 15th, 2021, 1:15 pm
Forum: Ultimaker 2 / Ultimaker 2+ / Extended & Go
Topic: Super hard nozzles - Test pilots
Replies: 446
Views: 440874

Re: Super hard nozzles - Test pilots

No it's the same. 0.4mm and larger ruby nozzles have 2 or 3 pathways to warm the filament thoroughly. Cold pull still works fine despite this. 0.25mm ruby has no internal pathway as your flow rates are slow low anyway that you get thorough heating without the extra paths. I see your posts on Faceboo...
by gr5
March 13th, 2021, 9:40 pm
Forum: Ultimaker 2 / Ultimaker 2+ / Extended & Go
Topic: Super hard nozzles - Test pilots
Replies: 446
Views: 440874

Re: Super hard nozzles - Test pilots

Was he complaining that it was weak and he torqued it into two pieces with little effort? If so they listened and include torque wrenches now (with every nozzle? not sure). 3dsolex rubies are much tougher because the ruby is held in a completely different way. But really olsson rubies are plenty str...
by gr5
August 23rd, 2018, 10:35 am
Forum: PLA Filament General Discussion
Topic: Revive a spool of brittle PLA - is it possible?
Replies: 5
Views: 18419

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: 18188

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: 59338

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: 446
Views: 440874

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: 446
Views: 440874

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: 27517

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: 78373

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). Howe...
by gr5
January 28th, 2017, 11:13 am
Forum: Ultimaker 2 / Ultimaker 2+ / Extended & Go
Topic: Block v3 or Olsson Block
Replies: 18
Views: 27517

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 ...
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: 78373

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: 78373

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.

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