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greenlee

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Posts posted by greenlee

  1. 7 hours ago, RudydG said:

    Nice, i am in in interested, if, and only if, the total concept of the UM5 stays intact, the automatic bed levelling with the glass plate is so perfect, that i can not mis this anymore. My UM3 feels like a old machine without this feature.

     

    Six jobs done since the first post Friday. No issues with auto leveling.

    This is not soft like some of the flex magnet solutions, the steel plate is held firmly against borofloat glass and does not move during leveling.

    Ill shoot a video while leveling on the next reset.

     

  2. When UM dropped the aluminum build plate, which to be honest i didn't really think brought much value to the machine as flexible plates with low cost surface replacements are now preferred for Pet and other advanced materials, I had this prototype made up to test if this is a valid solution.

    Photos here -> https://photos.app.goo.gl/DXcQfq6DHkns8ekg6

    so far it's working perfectly and i'm very please with the outcome.

    Is there any interest in a group buy? as a one off part it was quite expensive.

    • Like 1
  3. I would be curious to know more about the limits of the sensing solution specifically thermals. All my UM machines eventually become enclosed and I expect i'll be building hood and door before too long for the UM3. Is there any electronic parts in the hot end to worry about with elevated temperatures?

    During development did Ultimaker look at the TI FDC1004 for sensing proximity? That solution claims to compensate for some of the variables you mentioned for example temperature.

  4. Hello Everyone.

    First congratulations to Ultimaker for making a machine that got me to buy another printer even though I wasn't planning too.

    I ran into two problems initially and have one recommendation.

    I received my new UM3ext late yesterday and had a bit of trouble initially with the lifting function not lining up with the lifting bracket. Sure I could have recalibrated the position but I noticed the gantry was not square. After squaring up the gantry the lifting is working correctly now.

    I suspect pulleys slipped on the shaft or wasn't tightened fully. This type of problem is one I see frequently especially on newly assembled machines (we have 20 UM type machines at the moment) and believe the setscrew arrangement is not ideal for how its being used.

    My recomendation: This type pulley (http://www.sdp-si.com/products/Fairloc/index.php) has superior clammping ability on hardend shafts and may prevent this type of problem. Just my 2 cents.

    After I had the gantry aligned I finished setting up the machine and started a job. About an hour or so into the job, WiFi stopped working but the job did not stop. I ended up stopping the job due to a position issue unrelated to the machine and in an attempt to bring wifi back up, I shutdown the system intending to restart. Well when I attempted to restart, the system would not post (my assumption since there was no display or wifi active). After sleeping on the problem and reading the "Inside the UM3" thread (freaking great having that online btw) I open the linux board cover and pulled off the wifi card.

    System will now boot up.

    To confirm the wifi card is in fact the issue I installed it and the system goes back to the no boot state.

    Still, even with these problems I enjoy having open source type components and an active forum with loads of technical information much of which supplied by sources inside the company. A very distinct difference compared to Formlabs machines which are a black box and have virtually no information from insiders.

    Keep it up, love you guys/gals.

    • Like 1
  5. Here's another way to run E3D on the UM2.

    Stock T100 and heater

    .IMG_20150907_180917.thumb.jpg.fb4e4d21134cfc470386ea3bdeff4e6f.jpg

    After I made this version I revised the hotend and have its overall size about as small as it will go with the stock components.

    IMG_20150913_105939.thumb.jpg.0062dcb5260db38c95cd1fd64780b84c.jpg

    I run several pounds of ABS and the setup is working very well. I get ABS extremely cheap and have no need to run PLA so haven't tested it.

    This is an earlier revision showing the cooling fan and how its mounted.

    IMG_20150905_155253.thumb.jpg.296aab7ee1bad780371a200eb673497a.jpg

    IMG_20150907_180917.thumb.jpg.fb4e4d21134cfc470386ea3bdeff4e6f.jpg

    IMG_20150913_105939.thumb.jpg.0062dcb5260db38c95cd1fd64780b84c.jpg

    IMG_20150905_155253.thumb.jpg.296aab7ee1bad780371a200eb673497a.jpg

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