{"data":{"make":{"id":"468482","created":"2022-11-12T03:55:11.421245+00:00","edited":null,"deleted":null,"isMake":true,"printer":{"id":"1","name":"Prusa MK3/S/S+","__typename":"PrinterTypeType"},"parent":null,"author":{"id":"232242","handle":"Kaz315_232242","verified":false,"dateVerified":null,"publicUsername":"Kaz315","avatarFilePath":"","badgesProfileLevel":{"profileLevel":10,"__typename":"BadgesProfileLevelType"},"__typename":"UserType"},"images":[{"id":"347214","filePath":"media/comment_images/12/16f624-cdfd-40ac-9744-f945d7e429ed/img_7943-2022-11-06.jpg","rotation":0,"__typename":"CommentImageType"},{"id":"347213","filePath":"media/comment_images/14/faf7d8-1238-46c4-9fba-62ba3eebdb63/img_7944-2022-11-06.jpg","rotation":0,"__typename":"CommentImageType"},{"id":"347212","filePath":"media/comment_images/8b/8a4103-17b4-475c-bdf3-733a5ea30ec3/img_7945-2022-11-06.jpg","rotation":0,"__typename":"CommentImageType"},{"id":"347211","filePath":"media/comment_images/9c/7b3e97-4288-4d97-822e-7f498d1a0ef6/img_7946-2022-11-06.jpg","rotation":0,"__typename":"CommentImageType"}],"mentions":[],"text":"It looks like an antique-looking accessory, but with careful adjustment, it seems to achieve a high degree of precision. I thought the key was to reduce friction on the shaft.","rating":null,"likesCount":1,"liked":null,"membershipAgeMonths":null,"modelData":{"model":{"id":"171330","ratingAvg":"5.0000000000","ratingCount":1,"__typename":"PrintType"},"__typename":"ModelDataType"},"membershipTier":null,"__typename":"PrintCommentType","model":{"eligibleForNomination":false,"id":"171330","slug":"nonlinear-letter-scale-one-gram-to-infinity","name":"Nonlinear Letter scale - One gram to Infinity","authorship":"author","club":false,"excludeCommercialUsage":false,"price":null,"eduProject":null,"ratingAvg":"5.0000000000","myRating":null,"ratingCount":1,"description":"\n\n\n

Nonlinear letter scale compatible with objects of various weight.

It has 1g resolution for light objects.
It can measure relatively heavy objects as well.
Easy to assemble (it consists of 3 parts).
Easy to calibrate.

Video

How to make

Step 1: Print the parts. By using \"Pause at height\" function of Cura, you can give different color to the letters.

Step 1: Print the parts. By using \"Pause at height\" function of Cura, you can give different color to the letters.

Step 2 : weld the axis (pin) with a soldering iron. Make sure it rotates smoothly.

Step 2 : weld the axis (pin) with a soldering iron. Make sure it rotates smoothly.

Step 3 : Adjust the origin (0g) using counter weight at the hook position. Do not attach main weight in this step.

Step 3 : Adjust the origin (0g) using counter weight at the hook position. Do not attach main weight in this step.

Step 4 : Adjust the main weight with an object of known mass. Now all set.

Step 4 : Adjust the main weight with an object of known mass. Now all set.

\nTheory\n======\n

Angle of rotation of the scale is arc tangent of the weight of payload.

Angle of rotation of the scale is calculated by the arctangent of the weight of payload, so it can map from 0g to infinity into 0 - 90 degrees.

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Nonlinear Letter scale - One gram to Infinity

Nonlinear Letter scale - One gram to Infinity

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