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4 Axis Do-it-Yourself DRO Kit
Unassembled

4 Axis Do-it-Yourself DRO Kit
Unassembled

Powerful and easy-to-build DIY wireless DRO kit for glass and magnetic scales. Supports up to four RS-422 or TTL quadrature encoder inputs for digital readout applications.

$169.00 USD
$169.00 USD
Sale Sold out
  • Ships in 2-5 business days
  • Free domestic shipping on orders over $200
  • No warranty
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TouchDRO TDK-40 is a powerful, easy-to-build 4-axis DIY DRO adapter kit that supports RS-422 (differential) and TTL (single-ended) glass and magnetic scales, as well as other 5V quadrature encoders. It features the same high-performance 32-bit architecture and differential input circuitry as the TDA-4xx series, offering comparable speed and functionality. Learn more

If you are looking for a fully assembled unit, please see the Adapter for Glass and Magnetic Scales.

Features

Please see TouchDRO Adapter Feature Comparison for more information.

TDK-40 supports up to four RS-422 or TTL scale inputs and is designed to work with most modern optical and magnetic DRO scales. With this kit you will receive

  • Partially assembled TDK-40 main board
  • ESP-32 DevKitC module preprogrammed with TouchDRO V3 Lite firmware
  • Custom 3D printed enclosure kit
  • A set of DB9/D-Sub 9 female connectors with mounting hardware
  • 4x2 pin headers and pre-crimped jumper wires for connector wiring
  • Access to TouchDRO Plus application
  • Support for Mitutoyo SPC and BIN6 data protocol (adapters sold separately)

Supported DRO Scales

The adapters support DRO scales and rotary encoders that output 5V quadrature signal. This includes:

  • Majority of modern optical, magnetic, and inductive scales. Learn more
  • [Plus] Mitutoyo DigiMatic scales with SPC output  - requires a SIC-5V-MIT-A input converter (sold separately)
  • [Plus] iGaging Absolute DRO Plus scales  - requires a SIC-3V3-IG-A input converter (sold separately)


Customer Reviews

Based on 11 reviews
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D
David
Excellent

Excellent. More flexible than conventional dro boxes.
And it was straightforward to assemble (as long as you can do electronic soldering)

R
Robert
The kit is very good quality with everything needed to complete

The kit is very good quality with everything needed to complete except the soldering iron, solder, and a few hand tools. The online instruction manual is excellent. Everything went together and worked exactly as it should.

R
Ray De Jong
DRO experience

Although I haven't completed the build yet, I know I will enjoy it. Having trouble with scale pinouts although no fault of the Kit, it is annoying and preventing me from getting to use it.
I must say that this DRO is amazing in what it can do.
Thanks two much
Ray

R
Richard Edberg
Very good, get the plus option!

Very good, but be sure to get the plus option, as that is hardware bound.

P
Phill Ford
Excellent Kit

Kit arrived quickly and was surprisingly easy to assemble following the instructions on the website. Everything fits together perfectly. I am using generic Chinese scales, that work fine with the adapter and it connects easily to the TouchDRO app on my Huawei Media pad. This is solution is so much better than dedicated DRO displays. Was originally going to use this DIY kit on my mini mill, but have been so impressed with it that have now purchased a ready built adapter to be able to use a touch probe on the mill and will be using the DIY kit on my lathe. Congratulations on an altogether excellent product.

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