Tiny detail sander

After very recently trying to deal with sanding into very small spaces, including trying the various Dremel accessories etc.  I just happened to be surfing around the web for something completely different, and happened across the idea of using an electric toothbrush for very fine detail sanding.

So a quick google search later, and seems to be quite a popular activity!  Because it oscillates, it could prove to be quite an effective sanding pattern without cutting circles everywhere.

Not sure if there is enough raw power in a toothbrush to do any significant material removal, but as a concept it is a rather clever repurposing!

By cutting off the bristles, and gluing on a small velcro pad, small disks of sandpaper can be easily attached and swapped as required.

Cast Iron

A few more detail images of the Carbatec (Grizzly?) bandsaw

Upper Wheel

The upper and lower wheels are cast iron – very heavy and smooth-running.  Obviously some voids are cut to decrease the overall weight, but still, very substantial wheels!  There are also no balancing issues with these puppies.  If, in time I find that they do need an improvement in balance, they can be drilled to create a dynamic balance, rather than having weights clipped on.

Lower (Drive) Wheel

The lower drive wheel also has the pulleys (visible) for the two speeds, although it will be rare that I bother with a speed change (if ever).  You can also see the blade and wheel brushes – one for the back of the blade (for the side that will connect with the wheel, and one for the wheel itself at the point that the blade has just ceased contact.  There are none in the upper cabinet, again as the assumption is any created dust is dealt with in the lower cabinet (unless you have something SIGNIFICANTLY wrong, and the bandsaw is running backwards!  I have seen this once – on an Elu lathe – a bit freaky, but luckily rather uncommon!)  You can just see the lower guides – the lower set has eccentrically mounted bearings for either side of the blade, then one mounted behind the blade – a normal bearing for the lower set, and un-notched (unfortunately).

Upper Guides

The upper guide set again shows the two bearings supporting either side of the blade, and you can just see the thrust bearing located above and behind.

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