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Block v3 or Olsson Block

Posted: January 11th, 2017, 1:58 pm
by LePaul
I need to upgrade my old Ultimaker 2 print head to the latest improvements.

I know we have Ander's Olsson Block

And I see 3Dsolex offers the Block v3

The Block V3 has 11 significant improvements over the Olsson block - mostly related to heat transfer. The Matchless nozzles have 4 significant improvements and the Matchless Race nozzles have a 5th improvement - mostly related to getting that heat from the block to melting the filament. These heat transfer improvements are significant and allow you to print cooler and/or faster. Matchless nozzles are compatible with Olsson block and older nozzles are compatible with Block V3 but without the extra benefit of faster heat transfer. The Race nozzles are a big improvement even with the "old" Olsson block.

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Now I haven't seen any side by side reviews of the 3D Solex Product and I have no opinion of it. Thoughts?

Have you guys?

Re: Block v3 or Olsson Block

Posted: January 12th, 2017, 4:19 am
by Anders Olsson
I think you should try it and write a review! :-)

Just beware that you might not get your heater/sensor out again if you for some reason decide to switch block again.
I had to fight a bit to keep those slots on the Olsson block by the way, Carl wanted to remove them already then.

And as I explained before, I am not involved in the Matchless block at all, so if the performance does not match the advertised numbers please don't come to me complaining :-)
Again though, a review would be nice!

I was thinking by the way, should we make a separate 3DSolex-thread from this one and the posts here? viewtopic.php?f=9&t=4&start=420#p7709

Re: Block v3 or Olsson Block

Posted: January 12th, 2017, 9:28 am
by LePaul
Carl asserts a lot of things in the attached PDF above but really, seeing is believing for a customer.

I would really like to see side by side results (prints?) or even video showing the differences.

As I've mentioned previously, I work (part time) as a salesman at a major retailer selling large appliances. I know sales pitches!

I really don't feel like experimenting too much here, just interested to see if the sales claims match real-world user experiences

Re: Block v3 or Olsson Block

Posted: January 12th, 2017, 4:40 pm
by Izzy
I think Andres is right to have two threads,
I am currently running with the matchless block but haven't had time to really test it as I've a job on my hub I need to complete. And I'm not sure when I will have time to dedicate to run a series of tests on its performance.
IMHO I think in general the Olsson block running a 0.4 to 0.8 with a 35W heater keeping to sensible speeds it is fine for the majority of users and will also nor with smaller and larger nozzles.
The matchless may be more suitable to those wanting to try that bit more, increasing speeds and larger nozzles.
At the moment I'm using the matchless but at normal std rates until I'm happy it's all working fine, no leaks etc, then when I get some time I want to get a decent S3D profile for other nozzle sizes, and play with the very small nozzles.
Time is the enemy at the moment for me my studies taking up my time, and helping Sue with the Vblog of her journey as we are both learning to do the camera and editing etc. But hopefully with Sues interest growing, in time will have some me time :-D

Re: Block v3 or Olsson Block

Posted: January 13th, 2017, 8:32 am
by Izzy
Just looked at the match PDF Paul posted above.
If the main seal is the end of the nozzles threaded portion forming a flat seal with the end of the bore in the heater block, great we should get no leaks and the threaded parts connecting will give the heat transfer.
BUT if the conical chamfered area is also connecting and providing heat transfer then even with very high tolerances unless there is a soft insert seal the likely hood of getting both areas to contact and seal are extreamly remote unless one part (the nozzle conical chamfer) is being deformed to actually allow the flat end to fully contact and seal.

Everything has a tolerance (having said that, when I was an apprentice back in the early 80s we had Douglas a very precise instrument maker who was what we called 'spot bollock' and worked to zero tolerance, and you were chuffed to be placed with him in your final year as you knew you were Vgood) and the finer the tolerance the higher the cost.

BUT, the hobbyist engineer is pushing R&D in areas not profitable for companies to pursue, and with the help of others with the same mind set ( I think a large proportion of them gathered in this forum :lol: ) get feedback and testing help to develop their ideas, and then perhaps get something to market, and we need people like that. Just because it hasn't been done doesn't mean it can't be done, nothing is impossible we just haven't solved the problem yet! And on this forum we have a lot of help from likeminded, erm, nutters :-D and long may we reign :lol: