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"A Wrinkly in 3D Printing Land", a tale of an OAP Vs 3D printers

Discussion in 'Workshop Benches' started by Jim Freight, Mar 9, 2023.

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  1. May 19, 2023 #41
    Jim Freight

    Jim Freight Full Member

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    P.S. Chris

    I omitted CPU performance from the PC spec, that is complicated, 10 to 20 years ago it was just the raw processor clock speed and bus width, e.g. 32 or 64 bit that mattered, now it is much more complicated as a 'processor device' has multiple cores (processors in one package) and appear to have various bus types for accessing RAM to suit different tasks.

    So I would investigate the use of a low to medium specification gaming machine but without the disco lights and flash casings that appear to be prevalent, or possibly a lightweight CAD workstation type of machine.

    At present I would be hard pressed to know what would be suitable, the videos help to a point. :scratchchin:

    Jim :)
     
  2. May 20, 2023 #42
    Chris M

    Chris M If 2 wrongs don't make it right ... try 3 Full Member

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    Thanks Jim, a very detailed reply.

    I suspected there would be a lot of 'gotya's ... I have a fairly powerful PC and laptop. But I know from past experience using Meshmixer that the mesh data can easily become huge and very slow to process. I have watched videos using industrial scanners and they seem to do an amazing job ... BUT the price ... forget it. And they never mention what computer hardware they use to process the data ... I suspect top of the line.

    I applaud you for having a go at scanning models. For me I think I will wait until the technology improves and gets cheaper ... I may be in for a long wait !!! :headbanger:

    Chris
     
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  3. May 20, 2023 #43
    Andy_Sollis

    Andy_Sollis Staff Member Moderator

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    I’ve had some success with various ways of scanning from a mobile phone.

    the first image is of an enamel railway mash can (the colours around the bottom
    Is the reflection of the paper I’ve used to make it easier for the program/app to stitch the photos) - this should be ok in 7mm but no idea how small in 4mm it would be. This was filmed with the phone static on a tripod and changing to a second lower night for a second pass and around 70 photos whilst the object was rotated by hand on a turntable.

    The second part of the video was hand shot at a museum on Tuesday and shows the geodetic frame of a Vickers Wellington bomber as designed by Barnes Wallis. This is one of the largest scans I’ve done and is around 40ft long and 10 ft high. This was created using LiDAR, which is more a video based way of scanning.

    the last section is a 6inch high action figure of Dr Who. This was done by the figure standing still and I walked around the figure in a table. Again around 70 photos stitched together.

    All good fun and now to make two of them in to models, the third was just for fun! (The aircraft wing)
     
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  4. May 20, 2023 #44
    Jim Freight

    Jim Freight Full Member

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    Hi Andy,

    I hope you will create a thread showing the processing of these images to generate a 3D printable file.

    I'm sure other P1 members would be interested.

    This may be the final straw for me and I finally buy a 'smart' phone, what model are you using for your scans?

    Jim :)
     
  5. May 20, 2023 #45
    Andy_Sollis

    Andy_Sollis Staff Member Moderator

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    it’s an iPhone 13 Pro Max.
    I have around 4 different apps,
    Although I have found they differ in results, some are better than others at various bits and bobs, some charge. Some are free, but slow.
    Something will follow. I’m trying to work out how to do it.
     
  6. May 20, 2023 #46
    Jim Freight

    Jim Freight Full Member

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    Look forward to seeing a how to do it, pros and cons thread, especially if it requires an expensive phone.

    Jim :thumbup:
     
  7. Jun 24, 2023 #47
    Jim Freight

    Jim Freight Full Member

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