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  1. Yesterday
  2. Finding a problem when trying to build a "buy on bricklink" parts list. Basically, I have a list of parts I "need" to have, and then I would like to just subtract out parts from sets I'm buying for that (sort of a manual compute build this MOC). I'm trying this from the Import/Export button on the My Parts screen. There is a List A with say 150 parts. And a CSV exported set list. I want to "subtract from current list" on that dialog. It works if there are MORE in my current List A of every part. Problem is, if there is any line item type with MORE than I have in List A, it fails with an error "Can't have negative" or something. While I think the error makes sense, I would like the ability to ignore this and just have it zero out and not go negative. Basically, it is eliminating parts I need by dropping sets on it. I think I've found better ways to do this with the My Custom Lists, and apply MOC's and stuff and can get delta's from that in the Build It! dialog similar to a set, but figured I'd mention this here. Jeff
  3. Jeff McClain

    Negative parts???

    I've had this as well, when doing "Build this Set" calculations when I had "sets" that I had listed as "use in my build", but then had them marked as "currently built". Seems like it tries to compute parts you HAVE, but then subtracts them out, and then when you UNCHECK those in the "recompute build", it incorrectly marks those as missing and needed. Anyway, the best solution I've found is to not have ANY sets available for builds (uncheck all in "my sets") and to NOT have any sets "built" currently...
  4. As soon as I find the actual pieces again, I could take and submit photos. I don't know which set originally contained the pieces. The photos would show up in part lists even with the part error remaining, right?
  5. Whenever you come across these cases in a set, let us know. It happens a lot that there are more than 1 mold in a set. In that case we can make a 2nd inventory version so the color/part errors disappear. And photos of part colors that have no image are also always welcome.
  6. I have an example of another potential cause: Mould variants may not be recorded accurately in set inventories. I own some 32064c pieces (bought on BrickLink, so I don't know from where they originated). According to Rebrickable, that mould variant has never been used in a set. Seems like there are several mould variants, and only a specific one is listed in set inventories, even if some of the sets actually contained a different mould variant. For 32064c, there are unfortunately not any images available on Rebrickable, so my inventory has "part error" and "no image available" for all colors of this variant.
  7. Last week
  8. unless you have a lot of empty slots in your physical storage that won't do me anything good. I basically have a wall with 6x8 racco/cocraft storage containers which mean its 6 columns with 24 rows of drawers and each drawer can hold a grid of 8x4 containers, containers are ether 1,2,4,8 slots big so it's between 24 and 4 containers inside each drawer. When a part has outgrown or don't fit into one of these container it goes into a more standard plastic boxes which I store in a bookshelf. Here I also have five different sizes until it it's out grown the bookshelf and it goes to the big container area which simply means the boxes are big enough to stacked alone. Right now that is only train tracks, Boats, base plates and other very large parts. I know this is problem only because my collection is quite big.
  9. I understand. Before I wrote my application I had the same problem. Now I just have to change a line in a csv line. If I find some time I'll try to build a Windows installer for you to try the application with your collection.
  10. I would have to use three dimensions for my setup, but that isn't my major pain when it comes to the collection it's keeping any inventory location up to date since I have to move the boxes around as the content grows and need to change container. or when new types of parts are added. I try to keep categories together which cause even more moving around... if I had a software which could help me adjusting and manage that growth.
  11. I have uploaded on GitHub a piece of software that I have developed to manage my LEGO collection. It heavily relies on the Rebrickable API and I would like to thank Nathan and the whole Rebrickable community for having made it possible. My hope is that some of you will find it useful. You can find it here: And a thread to discuss about it here:
  12. Thank you. If you number them, though, you would need a sort of index linking blocks and box numbers. That's what my application provides.
  13. I like the idea. I went with labelling all my boxes with images of the parts, so I can recognize them. Downside is that I don't have a specific order in the boxes (food storage trays, stacked 8 high, 2 rows deep), what makes searching for them time-consuming. If I would number them like you did, that would solve the problem.
  14. Yes, I know. I have considered upgrading to pro and using that feature. However, at the end I decided to go for my own application to avoid having to manually enter those data in Rebrickable. My programe uses a simple two column csv file (part_num, box_num) which is easy to maintain.
  15. In the picture below you can see some of my boxes. Each box has a label and contains bricks of specific types. My application knows in which box each brick is and combines that information with information coming from Rebrickable to build reports such as the one shown in the opening post of this thread. So whenever I want to rebuild an old set, I not only know which blocks I need, but also where to find them. The latter is unknown to Rebrickable.
  16. what does it do that rebrickable doesn't? what needs does it fulfill?
  17. Hi there, I have been working for a while on a Python 3 application to manage my LEGO collection and I have just made it available on GitHub at I physically store my +- 60,000 Lego bricks in labelled boxes (+- 275) according to their type. As it is the case with, for each Lego set I own, the application tells me what type of Lego bricks I need to build it and how many of each type. In addition (and this is the interesting point), the application tells me in which box I store each brick. As an example, the image below displays one of the html pages generated by the application with the box labels printed in green. The application uses the API and the Python packages shelves, pandas and jinja2. If there is some interest out there, I can work a little bit to add some documentation. I hope this is useful. Augusto.
  18. slangivar

    Should all books be in the book category?

    Yes, that sounds good. The officially numbered books such as build your own adventure have numbers similar to poly bags and some free gift sets so it makes sense to leave them as you say. But with ones with invented numbers the ISBN would make life simpler. I'll get the ISBN of mine tonight and send in a CR.
  19. Simon

    Should all books be in the book category?

    Adrian; there are books (mostly DK) that have been advertised on the LEGO website and for which we have a genuine LEGO number, usually '500' follow by 4 digits. Example: 5004906-1. Those I don't think we should renumber. For most others I would indeed use the full 13-digit ISBN number; our friends at Brickset seem to do the same, and if you want to buy the book, having the ISBN is the easiest way to find it. We can renumber sets, and the user-sets lists are updated when we do, so that shouldn't be a problem. Now I have been working on books off and on for the last couple of months, but there are still a lot that need to be done, so if you run into a book that seems to have a wrong number, and you're willing to check the right ISBN, then an CR would be appreciated. Take care, Simon
  20. slangivar

    Should all books be in the book category?

    Thanks. Will do. I usually do a CR but wasn't sure about books as I've never done them before.
  21. jaredhinton

    Should all books be in the book category?

    I've done these, thanks. In future a CR would be great. Regarding renumbering, I'll leave a more knowledgeable Admin to answer.
  22. I have just added my three books with parts to my inventory. I had some trouble finding them because only one was in the books category. One was is in "Educational and Dacta > Technic" ( and the other was in "Town > City" ( Should I put in change requests to recategorise them as books? On a related note the Crazy Contraptions book is listed under what I assume is an invented set number (B110) while new books appear under ISBN. Am I correct to assume there would be no appetite to change the set numbering for old books as it would create more problems than it would solve?
  23. Vokhev

    Using Estimated Value to Appraise Collection

    Anyway, automatically calculating in an accurate fashion the value of anything but a collection that is not just recent complete sets would be very hard in any case, even with all of Bricklink's data. Things like whether the box, instructions or stickers are included is in the description on Bricklink and you can't really have a system that takes that into account. Sometimes sets with the instructions or box missing are marked as complete, sometimes incomplete. How would you get prices for a set for which you have lost parts? There's not really any measure of parts condition on either Bricklink or Rebrickable. Don't get me wrong, that would be great if it were possible but I don't think the base data required even exists right now.
  24. TobyMac

    Importing inventory from IO files

    I reported this issue a while back (in the admin forum) when I noticed it too, and @NathanNathan replied that he fixed it. Had something to do with the way the parts are stored in the file.
  25. Ody19s

    ''Mark as built'' for ''color switch'' MOC

    I would love this feature. I often change the colour of certain parts for a built. To be able to do a custom lists including these changes will improve the accuracy of my part available calculation.
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