Drive Motor Encoder Assembly

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Parts

Parts List Table

encoder-assembly-parts-list

component-type	description	source-files	drawing-files	supplier-link
3d print	3d printed Hex Nut Encoder Adapter	amt103_encoder_8mm_adapter_v1.stl	-	https://www.jawstec.com/
3d print	3d AMT10 Encoder Mount	amt103_encoder_mount_v1.stl	-	https://www.jawstec.com/
rotary encoder	AMT103-V	-	-	-
fastener	M3 x 0.5 mm Thread, 8 mm Long (Philip Machine Screw)	-	-	https://www.homedepot.com/p/Everbilt-M3-0-5-x-10-mm-Phillips-Flat-Head-Zinc-Plated-Machine-Screw-3-Pack-841658/204849607
wire and cable	Data Communication Cable (6C 24AWG DOUBLE SHIELDED CABLE)	-	-	https://www.mcmaster.com/75985K63/
pin header	2 x 5P 2.54 mm pin Dupont Connector Housing housing	-	-	-
laser cut sheet metal	V-Brake Bend Sheet Metal ATM10 Encoder Mount	-	Flat pattern of encoder-bracket-AMT103 Drawing 1.pdf	https://sendcutsend.com/
fastener	M3 Bolt Rivet	-	-	-

Link to original

Flat pattern of encoder-bracket-AMT103 Drawing 1.pdf

• Hex Nut Encoder Adapter (3D printed)

  • Material: MJF Nylon
  • File: encoder_adapter_v0.stl
  • Qty: 2
  • Drawing: Hex Nut Encoder Adapter Rev-.pdf
  • Supplier Link: https://www.jawstec.com/

• AMT10 Encoder Mount (3D printed)

  • Material: MJF Nylon
  • File: encoder_mount_v3.stl
  • Note: The mounting holes for AMT103 where too large for the M3 Philip Machine Screws. A small amount of glue was used to shrink the holes. Version 4 should resize the holes to be 5-10% smaller (2.7mm) than the screw diameter(3mm). Also, the length from the mount surface to the motor shaft should be 56.5mm not 55mm. See MY1060_dimension.webp
  • Qty: 2
  • Drawing: AMT10 Encoder Mount Rev-.pdf
  • Supplier Link: https://www.jawstec.com/

• AMT103-V (Rotary Encoder Incremental Programmable Quadrature)amt103

  • Qty: 2
  • Supplier Link: https://www.digikey.com/en/products/detail/cui-devices/AMT103-V/827016
  • Default Resolution: 2048 (qppr) (2048 is Maximum)
  • Resolution

    • 4*ppr*gear_ratio = Steps per wheel revolution

    • (4x2048)*(80/11)=59578.1818182

    • `2pir

    • meters per rev = 0.7979645340119

    • step per meter = step/rev * (meters/rev)^-1

    • steps per meter = 74662.6939905

    • 59578.1818182 Steps per Revolution (59,578) https://www.desmos.com/calculator/nbb1lyeses

• M3 x 0.5 mm Thread, 8 mm Long (Philip Machine Screw)

  • Purpose: Mounting AMT103-V to Encoder Mount
  • Qty: 2
  • Supplier Data:
    • Menards SKU: 873146
    • https://www.homedepot.com/p/Everbilt-M3-0-5-x-10-mm-Phillips-Flat-Head-Zinc-Plated-Machine-Screw-3-Pack-841658/204849607

• Data Communication Cable (6C 24AWG DOUBLE SHIELDED CABLE)

  • Supplier Link: https://www.mcmaster.com/75985K63/

  • Order Length: 10 feet Spool

  • Qty: 1

  • Cut: 2 parts of 3 feet cuttings