SBAU381A July 2021 – July 2021 TMAG5170 , TMAG5170 , TMAG5170-Q1 , TMAG5170-Q1 , TMAG5173-Q1 , TMAG5173-Q1 , TMAG5273 , TMAG5273

2 Assembly Guide

Item	Description	Quantity
Clip On Base	Base.STL	1
Orbital Arm	Arm.STL	1
Orbital Slider	Slider.STL	1
1/4" dia. x 3/16" thick Cylindrical magnet	NdFeB (N52): available at K&J Magnetics	1
1" 4-40 Hex Socket screw	Nylon screw: available at McMaster Carr	1
4-40 Hex Nut	Nylon Hex Nut: available at McMaster Carr	2
4-40 Stand off: 1/4"	Nylon Hex Standoff: available at McMaster Carr	1
8333-20G	Super Glue	0.02 oz
4-40 Stand off: 1/16"	Nylon Hex Standoff: available at McMaster Carr	1 (optional)
1/4" 4-40 screw	Nylon screw: available at McMaster Carr	1 (optional)

Figure 2-1 Exploded View

Step 1- Print the Orbital Slider (Slider.STL)

This is the printable slider for the orbital attachment. Notice the indented seat for the set screw nut and for an optional slider clamp screw.

Figure 2-2 Orbital Slider

Step 2 - Glue in the 4-40 Hex nut in the center set screw opening

Glue the Hex nut in the center opening shown below. Additionally, glue in the 1/16" 4-40 standoff in the off center clamp screw indentation if desired.

Figure 2-3 Orbital Slider Assembly

Step 3 - Print the Orbital Arm (Arm.STL)

This is the central fixture of the assembly. It will clip into the attachment base and serves as a guide for the slider assembly already printed.

Figure 2-4 Orbital Arm

Step 4 - Guide the Orbital Slider onto the Orbital Arm

Figure 2-5 shows how the slider can easily slide onto the top of the arm.

Figure 2-5 Connecting the Slider

Step 5 - Insert the set screw

Insert the set screw from the inside of the Orbital Arm. This will serve as both a handle and a control for the range of the magnet.

Figure 2-6 Set Screw Attachment

Figure 2-7 shows the how the set screw should appear at full extension.

Figure 2-7 Fully Extended Set Screw

Step 6 - Glue the magnet, remaining hex nut, and 1/4" standoff to set screw

With these items attached, the set screw will no longer be removable from the assembly and the slider will be permanently connected. With the magnet centered on the screw head, the pole of the magnet will be continuously directed towards the sensor location. If desired, it is possible to attach any reasonably sized magnet here, but take care to ensure a pole is directed towards the device. The magnet may be oriented with either pole facing the sensor, but it is necessary to be consistent when correlating position to the observed field.

Figure 2-8 Magnet and Handle Assembly

Step 7 - Print the Clip on Base (Base.STL)

This printable piece will serve to connect the attachment to the EVM. The sensor platform will slide through the opening and then may clip onto the circular guides on the base.

Figure 2-9 Clip On Base

Figure 2-10 Clip With Attached EVM

Step 8 - Connect the Base to the Orbital Arm

This connection will complete the assembly of the attachment and allow the sensor to move at a fixed radius.

Figure 2-11 Clip Base Connection to Orbital Arm