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

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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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      Venkatesh Rao Retweeted Venkatesh Rao

      3d printing is a world of superstition and old wives' tales. Tricks I read/was recommended for getting stuck-on prints off the build plate: 1. Wait for it to cool so differential contraction breaks the bond 2. Take it off hot (while it's still soft at the bottom?) 3. Ice it...https://twitter.com/vgr/status/1297280695350341633 …

      Venkatesh Rao added,

      0:05
      Venkatesh Rao @vgr
      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
      Show this thread
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    2. Venkatesh Rao‏ @vgr Aug 22
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      4. Swab isopropyl alcohol around edges 5. No isoprop alcohol doesn't work and can't dissolve PLA 6. Try water 7. Regular water won't work, try de-ionized 8. Put tape on plate to prevent this 9. No tape needed 10. Use blue tape 11. Blue tape can't be used on heated bed...

      1 reply 0 retweets 2 likes
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    3. Venkatesh Rao‏ @vgr Aug 22
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      12. Yes blue tape can be used, but only for lower temperatures 13. Use kapton tape 14. Don't use kapton tape, it's a bitch to get off later 15. Take the plate off and freeze it 16. Heat up the plate to above build temp to melt bottom layer 17. Try flossing around bottom

      1 reply 0 retweets 1 like
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    4. Venkatesh Rao‏ @vgr Aug 22
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      18. Lower the plate a bit 19. Use a raft (thin, coarse base layer added to design) 20. No need for a raft... My additions to the lore: 21. Drill a hole from the side to shove a rod in to lever off (didn't work for me due to low-density draft print, but might work for others)

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    5. Venkatesh Rao‏ @vgr Aug 22
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      22. Use boxcutter blade to shove under model and prise it up just enough to shove in a thicker wedge like a screwdriver or thin spatula. This is what finally did it. I must have tried half these methods along the way (couldn't freeze the plate since the wires are soldered on)

      1 reply 0 retweets 0 likes
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      Venkatesh Rao‏ @vgr Aug 22
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      But seriously Maker crowd... YOU GUYS HAVE BEEN DOING THIS FOR YEARS AND YOU COULDN'T RUN A PROPER DESIGN-OF-EXPERIMENTS SET OF TESTS ON THIS TO FIGURE THIS OUT????

      3:59 PM - 22 Aug 2020
      • 10 Likes
      • Lliiku James "Keep masking" Britt 🇺🇸 David Shaw im only 5'3 Charles Neill 🤨 jimmy hsu 🚀 Dival Banerjee 🛸 alth0u 😷🏠
      7 replies 0 retweets 10 likes
        1. New conversation
        2. Dival Banerjee  🛸‏ @divalbanerjee Aug 22
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          Replying to @vgr

          There are more systematic approaches to bed leveling.... but often people just get away with the paper under the nozzle thing(imo this gets you in the right ballpark, but needs more precision). I should write a guide on how to get those remaining settings dialed in

          1 reply 0 retweets 1 like
        3. Dival Banerjee  🛸‏ @divalbanerjee Aug 22
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          Replying to @divalbanerjee @vgr

          This method is similar to what Id do when I used to run the college of engineering print lab. Hope this helps!https://youtu.be/RZRY6kunAvs 

          1 reply 0 retweets 2 likes
        4. Show replies
        1. Lee Gonzales (He/Him)‏ @leegonzales Aug 22
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          Replying to @vgr

          I know a guy... @DevonDJones what is the best way to get prints off of buildplates? Any videos on this?

          0 replies 0 retweets 0 likes
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        1. Skyler adams‏ @skyler__adams Aug 22
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          Replying to @vgr

          3D printing is in the “laser printer from the 60”s territory where it’s useful enough to be used wisely but is still built on a pile of process tricks. Not mature enough to be bundled for $30 including plastic filament from Epson

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        1. Troy Winfrey‏ @twinfrey Aug 22
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          Replying to @vgr

          Lemme get this straight. A bunch of ENGINEERS didn't document their builds? I'm shocked just shocked

          0 replies 0 retweets 1 like
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        1. CrownedCaribou‏ @CrownedCaribou Aug 22
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          Replying to @vgr

          You assume that just because they advice appears to contradict each other, that they cant all work

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        1. New conversation
        2. JS Ng‏ @kureshii_ Aug 22
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          Replying to @vgr

          3D printers aren't standardised enough that a small number of approaches work for everything. What I did to work around this is to buy build plates. Used one with my printrbot, and also with the Flashforge Dreamer at work, and it's so much easier to get prints off the base.

          1 reply 0 retweets 0 likes
        3. JS Ng‏ @kureshii_ Aug 22
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          Replying to @kureshii_ @vgr

          I bought them from BuildTak, others may have different recommendations

          0 replies 0 retweets 1 like
        4. End of conversation
        1. COSHAPE‏ @CoshapeHQ Aug 22
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          Replying to @vgr

          Yeah, it's fun, isn't it! Set of options drastically decreases if design, material, kind of bed, taken into account

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