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Setting a tool in an Eclipse style honing guide for a given bevel angle is really quick: shove the tool in, offer it up to a pre-made stop, tighten the guide.  Even without a pre-made stop, using one of these edge distance gauge things things makes it very quick.

By contrast, setting up the SE-77 square edge jig requires using the WMB-200 and squinting to see whether the angle is right while you tweak the support bar up and down. That felt to me like a bit of a faff, so I thought I'd figure out the maths that gives the protrusion for a given support bar offset.  It ended up being quite complicated, but I like maths, so that's okay 

Anyway, what that ends up with is the ability to set the support bar to a particular distance from the wheel (which is easy with a setting tool a la Micha Schmid and Keld Petersen) and then set the tool protrusion in much the same way as you can with an Eclipse honing guide.

Unfortunately, it's not quite as simple as that as the wheel diameter and tool thickness have an effect.  For most practical uses, small changes in wheel diameter can be ignored, as can tool thickness changes so I think it's okay.

Anyway, having done all the maths, I thought I'd turn it into a calculator and stick it on my website (so it runs in a browser and doesn't need any spreadsheets or other software installed on your PC).

If anyone is interested, the calculator is here:

https://www.cgtk.co.uk/woodwork/calculators/tormeksquareedge

There's also one for manual honing guides here:

https://www.cgtk.co.uk/woodwork/calculators/honingguide

I'd welcome any comments

Screenshot:

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Note that this is for skewed chisels (as used by woodworkers for cleaning out dovetail sockets etc), not skew chisels (as used by woodturners).  Skewed chisels (like these ones) have a single bevel at a steep angle and make it much easier to get into the sides of dovetail sockets than straight chisels do.

I was finding it quite awkward sharpening skewed chisels on the Tormek: mounting them in the square edge jig was awkward and the other jigs just didn't seem to suit this sort of chisel very well.  To solve that, I made a very simple to use 3D printed jig that seems to work really well.  I printed this about a year ago, but I've finally got round to publishing the model so I thought I'd post it here as well in case anyone's interested.

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The model is available here (along with more photos and details): https://www.printables.com/model/535539-tormek-skewed-chisel-sharpening-jig

I made this a while ago, but only just got round to making it available on-line.

Router plane blades can be a bit of a pain to sharpen.  I thought it would be a nice to be able to be able to sharpen them with the Tormek, but it didn't seem to be very straightforward.  One of the Tormek sharpening videos shows a router plane blade being sharpened but it's a very unusual shape one that looks a lot easier to sharpen than any of the ones I've got 

Anyway, it occurred to me that a 3D printer could be persuaded to make this job easier and hence:

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If anyone else is interested in this, the model can be downloaded from here: https://www.printables.com/model/332395-tormek-router-plane-sharpening-jig

There's also a jig for hand sharpening router plane blades available here: https://www.printables.com/model/535546-router-plane-blade-sharpening-jigs, but that's got nothing to do with Tormek

I'm wondering about getting the DBS-22 sometime soon.  I have quite a large collection of spot drills and quite a lot of them are blunt now, so I'd love to be able to sharpen them.  Can the DBS-22 sharpen this sort of thing?

Example of the type of drill I'm talking about: https://www.scribd.com/document/276985270/Nc-Spot-Drills