Wixey Digital Planer Height Gauge

I managed to finish fitting the digital height gauge to the thicknesser today, and it is quite impressive.

As mentioned a few posts ago, I attached the main portion of the gauge using double-sided tape (which is the standard method, although there is provision for using self-taping screws as well). Given where I placed the gauge, the standard brackets were not long enough, so I ended up adding an extension to the bracket.

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The concept is pretty straightforward – the ruler gauge (seen right) remains fixed to the casing of the planer/thicknesser. The bracket (to the left), and the gauge itself moves up and down with the planer head. Once it is calibrated (which is simplicity itself), then you can set the planer height to a particular reading, and when the material is passed through, it comes out the desired thickness. It sure beats doing a pass, measuring the result, then deciding how much to turn the handle and hoping that you don’t go too far!

The accuracy I was getting with the first couple of test passes was between 0.02mm and 0.25mm of the actual thickness I wanted. I didn’t try calibrating it again to get rid of the little error that remained, but will do that during the video.

The extension to the bracket was actually made from the metal bar that is part of a magnet door clasp. It just happened to just the right gauge that I was looking for, so got sacrificed to the cause. I drilled a hole so the 2 bolts were the right distance apart to bridge the gap, then a cut-off disk on a rotary (dremel-like) tool. I then used the disk sander to round off the end, and clean up the swarf from the drilling, using a pair of pliers as a heat-sink. It just goes to show that it is still useful having a few basic metal-working tools, even in a woodworking shop. You never know when you want to make a jig, or modify a tool or whatever!

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The gauge in its final home. The nice thing about it, (obviously other than the accuracy, which is amazing), is you can remove it without having caused any damage to the tool itself (other than getting some double-sided tape off). Where the bracket is connected to the planer head, is where the original pointer was screwed on. For some planers, you might have to drill and tap some new holes, but most benchtop planers will fit to the original pointer location.

So my final verdict on this upgrade is simple – if you have a planer/thicknesser, you will definitely want to add this digital gauge! In the past, I’ve used a 1/4 turn of the handle (which equates to 0.4mm) as the amount I change the height of the planer head, and after fitting the gauge, I found myself winding the handle slowly watching 1/100mm positions ticking past until the exact height I wanted came up. This will completely revolutionise how I use the thicknesser. Instead of running a pass, then use a digital caliper to see how thick the timber is, then decide how many 1/4 turns of the handle to go, I can get the height close (safely), then run a final light pass to nail the thickness I want. I was very surprised when the number (ie height) on the thicknesser came out the same as the number on the digital caliper after doing the pass. I was sold on the gadget in an instant!

The Wixey digital planer height gauge is available from, and generously provided by Professional Woodworker Supplies.

One Response

  1. […] detail in this blog entry Wixey Digital Planer Height Gauge. Formats available: MPEG4 Video (.mp4), Flash Video (.flv) (Right-click, and select “Save Link […]

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