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Posts posted by kaz911

  1. On 12/25/2019 at 12:17 AM, gr5 said:

    The intent profiles are really just a way to group profiles.  It isn't much of a feature.


    The bigger deal is that when the UM3 came out (and then S5 and then S3) the profiles concentrated more on speed and beauty instead of accuracy.  There is a new profile for the S5/S3 that concentrates more on accuracy than speed.  If you have a UM2 you don't need this as the profile for UM2 was accurate already.  If you have a UM3 then let me know and I'll tell you what settings to change to sacrifice beauty at the gain of accuracy (for mechanical things that need to fit perfectly).


    I’m battling with accuracy of my UM3e - so if you could let me know I would be very happy.



  2. I'm selling my UM 3 Extended as I'm not using it much.


    Print Time - heads say < 5 days each 


    In original (but tatty) box


    Included printer with original heads (3 total)

    1. a few rolls of ABS material + what is left of original (1 x Black ABS slightly used, 1 x White ABS Slightly used, 1 x Red ABS unopened, Original silver - not much left - original support material not much left.) - all rolls are original Ultimaker.


    2. Enhanced Print Kit (1 extra print plates/glass + Front Cover) 


    3. few head cleaner sticks.


    Will ship anywhere EU at cost price insured/signed for. Parcel(s) are heavy so not cheap to ship.


    Payment PayPal (Verified PayPal only or Bank Transfer @ your cost)


    Printer can be seen/inspected in Kew, Greater London TW9.


    Company Invoice without VAT (company not VAT registered) - no official warranty apart from it work :)


    Will be listed on eBay later if no response here: (eBay account : kaz911 - 100% since 1998)


    Price GBP 2300 OBO/OHB


    IMG_8801 (2).JPG

    IMG_8802 (2).JPG

  3. Hi All,


    it has been a while since I was active here as my Z-M200 has kept me out of trouble since my UM Original.


    But circumstance and luck? brought me back with 2 "new" UM's in two weeks. One UM2 bought broken and quickly repaired - and another 2nd hand UM3E with < 24 hours on it.


    So I'm back and have now gotten more or less up to speed on UM since my first "IKEA" Flatpack UM Original. ?


    And a LOT has happened over time. It is great to see Cura is now Mature(ish) and UM 2 / UM 3 are huge steps forward. I like the new Autolevel - and for PLA the glass plate is great - adhesion works really well. Camera & Wi-Fi are perfect as well! And dual extrusion and removable print heads are all great features.


    But ONE of the issues are the same as they wore on the UM original. I can not understand that the extruder is still such a "PITA"? It is still more or less the same and for the expensive UM3 I would have expected MUCH better like geared BondTech quality. Yes the extruder is better than the OLD wooden one. But not quite there yet.


    And then there are the rest: 

    Material feed from rear with 2 spools sticking out - 25-30 cm's with " engineers wet dream NFC reader"? (I'm an EE myself so I do understand) - but the development money should have gone to the extruder design(er)


    PVA: I think I spent about 2 days trying to align (and repeatedly clean/hot-pull/cold-pull) the PVA head. Obviously the PVA had not been stored well from previous owner so I found out the hissing and popping is moisture.. But that material is so sensitive. Not even 5 hours at 65c in oven cured it. So 3/4 of spool "maybe" down the drain? Now got it in a drybox to give it a final push. Else it goes out.


    BreakAway - as I print MOSTLY in ABS - I needed some BreakAway material. But mostly out of stock everywhere (UK)?


    Prices : Hmm - Ultimaker seems to have some very LOYAL dealers who maintain prices within a few GBP/Euro of each other across the whole of EU? Sales prices are SO close that I do think it might classify as price-fixing...?


    Anyway - once I have finished a "Dry-box" interface for my UM3 I'll dismount the NFC thing and see if I can get some stable prints in ABS with dual extrusion and breakaway support + PLA/PVA.  


    So I'm crossing my fingers ? and hope the UM's will earn their keep. But compared to printing on Zortrax - getting the UM3 to print nice has been harder than I had hoped for. Zortrax have their own issues - but that (was) mostly staff attitude and broken promises based and that is better now.. I can't fault the M200 in quality of prints and stability/repeat-ability of actually getting things made.


    So on top of head - my UM wish list for the future is:


    1. Better standard geared Extruder(s)!

    2. A PVA like support material that can actually survive hanging on the spool and do not "glass up" the Print Head. Or supply a PVA drybox as Standard!

    3. A ?Rasberry PI "Cura Connect" add-on to "old" UM2/2+'s with (maybe) Camera Support

    4. A printer that actually prints great out the box without a lot of the "fiddling" around. 


    Sorry this was not meant to sound like sour grapes - I am impressed what has happened since UM Original. But I was also very disappointed especially with the UM3 extruders and how PVA handles.



  4. I had issues with UM2 USB direct print from Cura 3.3.1 - I think there are some issues. I switched to SD Card print and all was good.


    My issue - printer did not get a "position" reset before the print started from the PC after a bed leveling.


    Cura started printing straight away without waiting for heated bed or extruder to heat up. There was a bit of retained heat so some material came out but not enough to bind.


    I exported the same print to SD card and all was fine.


    It was after updating to latest firmware, then a factory reset + complete shutdown - and then a platform leveling - then USB print - and a "fresh" Cura installed on a "Virgin PC" - it left some ugly marks on the glass as well.



  5. The extrude test isn't that user friendly. If the "steps per E" is 0 then it indeed doesn't work, you need to manually set it to 800 or something, then run the test and enter the real extrusion length, then press save. The steps per E will be updated on the save button with the correct steps per E then.

    ahh thanks :-) then maybe the start up wizzard should start with 800 :-) else you cant complete the startup wizzard.

    anyway - 2 questions

    1. Is it possible to set it so the head does not have a start position in the middle of the print? (0,0,0) ? That usually leaves a blob in the middle of my print :-)

    2. How about raft printing? Is that an option? Flat and big objects seem to stick very well to the blue tape...


  6. I am running the included Marlin 1.0 RC II? firmware - and I cannot run the extrude test either on Cura RC1. I have given the program the right rights for the directory.

    when pressing extrude - I hear a few ticks from the extruder (like one or two) but no extrusion happens. But when I print it extrudes fine. (from PrintRun)

    If I enter a new value in the "100" Edit box - it just reverts back to 100 and Steps pr E stays at 0.0?

    Apart from that Cura slices a lot faster than netfabb on my 6/12 core I7..

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