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vgr's profile
Venkatesh Rao
Venkatesh Rao
Venkatesh Rao
@vgr

Tweets

Venkatesh Rao

@vgr

Conversational account. For work follow @ribbonfarm, @breaking_smart, @artofgig. Tweets are 90% vacuous views, apathetically held. Mediocritopian. IKEA builder.

Los Angeles, CA
venkateshrao.com
Joined August 2007

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    1. Venkatesh Rao‏ @vgr Aug 22
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      Printing my first self-designed part 😬 Did it with OnShspe+Cura... haven’t used CAD software since 1996, which was ancient version of ProEngineer. Things have really advanced a lot. Browser+cloud-basedwith version control and all sorts of other crap.pic.twitter.com/bILFcaWSMC

      3 replies 1 retweet 27 likes
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    2. Venkatesh Rao‏ @vgr Aug 22
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      Even this extremely simple part (2 circles, 2 extrusions) was a nightmare to figure out. Felt like a caveman.

      3 replies 0 retweets 4 likes
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    3. Venkatesh Rao‏ @vgr Aug 22
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      Had 3 semesters of drawing as an undergrad (93-94)... 2 on paper drafting, 1 on Autocad 2d. Taught myself basic solid modeling on ProE my sophomore summer at my dad’s office (he ran the design department for a division of tata steel). Clearly I’ve forgotten most of it.

      2 replies 0 retweets 2 likes
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    4. Venkatesh Rao‏ @vgr Aug 22
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      Also kicked the tires on the online library stuff. Downloaded and printed this cat cookie cutter from thngiversepic.twitter.com/QZMAdVhmIl

      2 replies 0 retweets 8 likes
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    5. Venkatesh Rao‏ @vgr Aug 22
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      This one is REALLY stuck on and won’t come off. 😭pic.twitter.com/iqzmYj1NPp

      2 replies 0 retweets 0 likes
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      Venkatesh Rao‏ @vgr Aug 22
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      Tried taking the plate off but it’s soldered to electricals... no way to just disconnect. Goddammit.pic.twitter.com/Uq7FgchWH7

      2:57 PM - 22 Aug 2020
      2 replies 0 retweets 0 likes
        1. New conversation
        2. Venkatesh Rao‏ @vgr Aug 22
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          I give up. I’ve tried icing it, a spatula, swabbing isopropyl alcohol around edge, hammering gently from the side...

          2 replies 0 retweets 0 likes
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        3. Venkatesh Rao‏ @vgr Aug 22
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          At this point I’m considering drilling a small hole so I can insert a rod and try to pride the damn thing off. It’s either that or give up on this build plate and get a new one.

          8 replies 0 retweets 2 likes
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        4. Venkatesh Rao‏ @vgr Aug 22
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          Dammit. Drilling a hole and trying to lever it off didn’t work. Simply ripped the top off. This is with super draft low-fill settingpic.twitter.com/pRmOM4AIEv

          4 replies 0 retweets 4 likes
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        5. Venkatesh Rao‏ @vgr Aug 22
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          Okay. Got it off. I slipped a box cutter under one edge just enough to get spatula under it, and that was enough leverage to get it off. Done building directly on build plate. Gonna try either blue tape or kapton tape.pic.twitter.com/XBrz5UiqU4

          6 replies 0 retweets 10 likes
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        6. Venkatesh Rao‏ @vgr Aug 22
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          Well, no harm done except for one teeny scratch on build plate, which won't matter since I plan to tape it up now anyway.

          1 reply 0 retweets 2 likes
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        7. Venkatesh Rao‏ @vgr Aug 22
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          Venkatesh Rao Retweeted Dival Banerjee  🛸

          I *think* the most likely reason I'm getting extreme sticking while most people seem to suffer from insufficient sticking is that my nozzle might be too close to the print bed, making my bottom layers too dense. See this threadhttps://twitter.com/divalbanerjee/status/1297301260035674112 …

          Venkatesh Rao added,

          Dival Banerjee  🛸 @divalbanerjee
          Replying to @divalbanerjee @vgr
          In the future, try to level the print bed so that it’s slightly lower. It seems like the bed is just slightly too close to the nozzle. It will be a frustrating process, but worth doing imo
          2 replies 0 retweets 1 like
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        8. Venkatesh Rao‏ @vgr Aug 22
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          The way to test this would be to run an experiment at different bed levels with the same print, and measure the force needed to get it off, but I don't want to... direct on plate is too temperamental for my tastes. Gonna try taped up approach next.

          0 replies 0 retweets 1 like
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        9. End of conversation
        1. Artem Litvinovich‏ @theartlav Aug 22
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          Replying to @vgr

          Time to solder on an XT-30 connector? Easy first mod. Also, get a magnetic flexible bed (or wait a few prints for the print surface to lose it's nice grip and turn into the regular nothing-sticks nightmare).

          0 replies 0 retweets 0 likes
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