NXT Plug Compatible Crimp Tool
I tracked down a compatible RG11/ RG12/RG45 Modular Crimp Crimping Tool on eBay for only US$8.58 or Approximately AU$9.00. It is very well made and works extremely well, despite the price. It is also extremely easy to modify to make it compatible with the Lego Mindstorms NXT Cable Modular Plugs. It took me under 5 minutes to complete the modification with a Philips-Head Srewdriver and a Sharp Modelling knife.
Mindsensors sell the NXT-style RJ12 Modular Connectors. Unfortunately regular RJ12 crimping tools are not any good because of the NXT's Modular Plugs offset latch and there is no crimping tool available commercially for the plug. Here is how I modified mine. a standard RJ12 Crimping Tool. There are so many different models of these Tools available. I chose this one because it was made of plastic and easy to pull apart to modify.
Once you have removed the 5 screws, you may need to use a small Blade Screw Driver to price the two halves of the tool apart. Next take your "Very Sharp" Modeling Knife and carefully remove the excess plastic preventing the NXT Plug fitting in.
You will need to remove the excess plastic from both halves. It's important to remembering which side of the Tools "6P" hole to remove.
Once the excess plastic is removed, check that the NXT Modular Plug fits into both halves prior to reassembling the Tool. If all is well with your hack, carefully put the two halves of the tool back together. You may need to compress the two handles a little to get the two halves to mate. Replace the 5x screws and test it by manufacturing you first NXT Compatible Cable.
This model of RG11/ RG12/RG45 Modular Crimp Crimping Tool is very common on eBay and despite the price is very well built. I found the same unit elsewhere, including locally for over $30.00. It should last for a very long time in your toolbox.
- 100% brand new.
- 3 in 1Modular crimping tool.
- Portable style with perfect shape.
- For cutting, crimping modular plug: 8P8C/RJ 45, 6P6C/RG12, 6P4C/RG11, 4P4C, 4P2C plugs.
- The mouth of the press-pliers is made of magnetic steel, which is hard and durable.
- Length: 20cm.
- Package Weight: 193g.
Below is my first Lego Mindstorms NXT Compatible Cable made with the Crimping Tool and a scrap of old 6-Core telephone cable. And yes it worked first time, So I made 2x 1.2 Metre Cables out of my remaining cable.