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| Making a belt sander.. |
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| NeoTech:
Ah the purpose of the spring isnt to dampen the vibrations, its to tension the belt actually.. The vibrations came off that i got the driveshaft sliiightl off, a halv a milimeter or so and that translates to like 2-3mm with the drive wheel on there.. But it could be countered by putting some force in the spring.. (long bar, me compressing it) that took out most of the belt vibrations.. But that damn tracking wheel doesnt do its job properly belt is all over the place, and different belts act differently.. strange actually. So need to weld a t-bar to that bolt so it will be easier to adjust. |
| loply:
Hard to tell from the photos, but does your tracking wheel have a crown on it? It needs one in order to do it's job properly, else the belt won't self-center. |
| doubleboost:
Hi That looks to be a very handy bit of kit I have done a bit of tube notching (die drinder) :doh: :doh: :doh: :doh: Tour machine will make the job quick and easy (perfect result as well) :) :) :) John |
| NeoTech:
Yeah i have a 2 degree taper on the tracking wheel, but it will need plenty more to work well. Pointers for making this yourself. 1) Belt tension, belt tension, belt tension.. The damn belts need to be like a frickin bowstring. 2) Crown tracking wheel.. dont be shy.. i was i have recut the wheel twice.. i'm on a 5-2-flat-2-5 now, it still dont track properly, blend blend blend with a file.. 3) Make the tool arm adjustable.. it will help when you wanna swap belts.. And will help with belt tension. 4) Skateboard bearings are cheap, and they work great.. dont go for ABEC-7, they die instantly, but ABEC-5 worked like a charm. 5) Coverplate for the belt from the motor.. if... or when the belt decides to skip, it comes at ya, and it frickin hurt to get slapped in the face. ;D I welded the frame, box for holding the bearings and such.. but in hindsight i should have bolted everything - it would been easier to adjust. Welding is faster though. Whats left to be done is a backingplate for the belt, a toolrest and a tubing tool - that i make out of the very same tube i will need to cut. - will come back later with this when its somewhat done. |
| krv3000:
ooo i like it |
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