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Do-it-Yourself DRO Kit
4-Axis with RPM (Unassembled)

Do-it-Yourself DRO Kit
4-Axis with RPM (Unassembled)

Powerful, easy to build DIY wireless DRO kit with up to four scale inputs. Supports RS-422 and single-ended TTL glass and magnetic DRO scales, and RPM input.
$149.00 USD
$149.00 USD
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TouchDRO TDK-40 is an easy to build 4-axis DRO adapter kit that supports RS-422 (differential) and TTL (single-ended) glass and magnetic DRO scales and other 5V quadrature encoders. It uses the same powerful 32-bit architecture and differential input circuits as the TDA-4xx adapters and offers the same speed and performance. Learn more

Note that the kit requires soldering and mechanical assembly. 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-40T

TDK-40T 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
  • 4-pin Mini-DIN PCB mounted female connector
  • 4-pin Mini-DIN male plug

TDK-40T Plus

The "Plus" version includes the following additional features:

  • 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 5 reviews
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G
Greg Moser
Thing worked great!

Easy peasey all the parts were included. Just add scales and plug 'em in and BOOM you have a DRO!

P
Peter Luckel
Great kit & accessories!

I was expecting a board and bags full of resistors and capacitors and was surprised to receive only a motherboard and a daughterboard along with the case and a few odds and ends. There were no instructions but the assembly was pretty much intuitive and was together in less than half and hour. I don't yet have the glass scales to test it, but it did make a good bluetooth connection when powered up. I'm a fan of the TouchDRO family of products and am still using my original capacitive setup. I opted for the TDK-40T Plus version in order to try out the new software "Reference Image Overlay Function" as well as other enhanced features. I would highly recommend the product to others.

C
Cameron Boyce
The future of DROs

There is no way you can get the functionality of Touchdro in any other reasonably priced DRO. Touchdro are based a very durable boards and chips. The best part is it continues to grow and expand with more options. There is nothing else like it.

C
Christopher L. Galtress
Very nice!

very nice

C
Colin Rhodes
TDK-40 Touch DRO kit

Professionally built components.
Following the build instructions was straight forward and the build came together without issue. Tested along the way as suggested at each stage.
I made one small change by adding heat set threaded inserts for attaching the lid and base.