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Thread: Make your own cylindrical sander
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23rd August 2006, 04:30 PM #1Hewer of wood
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Make your own cylindrical sander
There are drum sanders around for drill presses but you can turn your own sanding spindle for whatever diam you want on the lathe for the lathe.
Basically it's just a hardwood MT2 ended cylinder with sandpaper wrapped around it.
MT2 dimensions are
2 7/8" long
narrow end: 37/64"
wide end: 23/32"
(volunteer to convert to metric and post welcomed!)
The cylinder is whatever diam suits your shaping/sanding task. Wrap a strip of good quality paper (c. 2" wide or maybe less) tightly up it in a spiral and tape at both ends. Support the end with the tailstock.
This is useful for shaping legs on bowls or facets on all sorts of turnings.
(Not my idea: ack't to Guilio Marcolongo)Cheers, Ern
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23rd August 2006 04:30 PM # ADSGoogle Adsense Advertisement
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23rd August 2006, 04:59 PM #2Senior Member
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Hi Ern
My trusty Instant Metric Reckoner book - printed over 30 years ago - gives these conversions
27/8" = 73.025mm
37/64" = 14.680mm
23/32" = 18.251mm
Your sanding tip was actually listed amongst the tips posted by Don Nethercott in the Bandsawn Box thread a couple of weeks ago.
Don's tip was that longer strips of sandpaper could be wrapped lengthwise around the cylinder to give a broader section for sanding. He included the caution that the paper has to be wrapped so that the overlap is not coming towards you on the lathe or all hell could break loose.
RegardsJohn H
Why do I never seem to cut "too long"?
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23rd August 2006, 05:24 PM #3Hewer of wood
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Thanks John.
Not sure I understand the last tip:
The version I saw Guilio use had the paper edges butted against each other as the strip spiralled up the cylinder - so no overlap and consistent radius.
Am I missing something?Cheers, Ern
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23rd August 2006, 05:59 PM #4Senior Member
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Ern
The paper can be a part or whole sheet wrapped around the cylinder and overlapping - tape at both ends - but with the overlap going away from you as the cylinder rotates. The width of the overlap is not sufficient to affect sanding in normal circumstances. Could affect final sanding but this is probably not a technique that I would use at that stage anyhow.
OKJohn H
Why do I never seem to cut "too long"?
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23rd August 2006, 06:08 PM #5
Baxter?? still I suppose you could say Salty??? too
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25th August 2006, 02:14 PM #6New Member
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could you post a picture?
Turning your own sander sounds like a great idea. Could you post an image of one off the lathe and another on the lathe? It would be easier for me if I saw an image.
Thanks
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25th August 2006, 04:48 PM #7
Hmmm... on a similar note, if you mounted a sanding drum on the lathe for use as a thicknessing sander, (ie. adding an adjustable height table to the bed) wouldn't you have to either be running a reversable lathe or feed the timber in from the back side of the bed?
- Andy Mc
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25th August 2006, 04:50 PM #8Retired
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nope, between the bed and spindle. We use big pneumatic ones (oh dear ) on ours.
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25th August 2006, 08:27 PM #9Hewer of wood
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Originally Posted byCheers, Ern
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25th August 2006, 08:29 PM #10Hewer of wood
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Sorry Yanki. Haven't done it myself.
The post was the product of a slow-everything day so I thought I'd do my bit to clog up folks' bandwidth.Cheers, Ern
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25th August 2006, 10:28 PM #11Senior Member
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Sanding on a lathe
Here is a piccy of my sanding setup on the lathe. I use a piece of dowel of whatever size, but you could turn your own.
Not my idea, came from Alan Williams in one of his bandsaw boxes caurses at Grafton Artsfest.
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26th August 2006, 12:47 PM #12
conversion
Ern,
here you go a simple but very effective conversion software. All things always......well....nearly
http://joshmadison.net/software/convert/Inspiration exists, but it has to find you working. — Pablo Picasso
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27th August 2006, 03:20 PM #13Hewer of wood
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Thanks Don.
And thanks for that link Hughie ... lol, 'wasting time online since 1993'.
[edit: but how do you enter 37/64"?]Cheers, Ern
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27th August 2006, 04:03 PM #14but how do you enter 37/64"?
hmmmm thats some fancy turnin'Inspiration exists, but it has to find you working. — Pablo Picasso
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27th August 2006, 06:03 PM #15Retired
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Originally Posted by rsser
Wooden tapers that fit into the hollow ends of the drum.
Drive with a Nova scroll or you could use a spur drive and supported with the tailstock at the other end.
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