Hi all,
after almost 6 months after moving, I have my DC up and running. It is a cyclone with a 3kw motor. I have the motor and impeller in a separate room and so far have only the lathe setup with an attachment for between centre turning (inside of bowls with a swivel head is next). However, I already have questions (with some photos to help explain)
1. Noise
I separated the motor and impeller into my attached 'woodshed' and I am very glad I did, as this is far noisier than in my main shed. So.........
a) the main noise is the air being sucked through the ducting. When I open up the blast gate for the lathe there is a significant increase in noise. However, if I just open up the blast gate which has no flexi attached it is much quieter. Is it the actual flexi causing the noise or the fact it has significant bends in it - or both? I am certainly willing to move things about for better results.
b) there is a lot of noise at the bottom of the cyclone (where it enters the bin). Is this normal or is it likely that I do not have this sealed properly? I have certainly made a big effort to seal the bin and from listening I could not detect a sealing problem.
2. Suction
a) When doing some turning, anything significant in size is NOT sucked into the DC. This is not unexpected. However, when I manage to take some very fine shavings or am scraping it looks like all of the fine stuff is being sucked up (which is the main game), however how do I test this? From memory (thanks to who else, but BobL) I believe there is a practical way of determining the effectiveness - place some wide and shallow containers around the shed and see what drops in there after doing a turnng session. I assume if I wait until the next morning and check things out I can see how good or bad my extraction is (ie: whether there is any dust settled on the water). Does this make sense?
b) From my 'put my hand near the outlet' test it seems that the outlet for my lathe (with its bent flexi) is definitely not as good as a straight run - this must make sense so I am thinking of how to have a straighter run and less flexi - any comments / thoughts most appreciated.
Photos leave 'a bit to be desired' but are trying to show my overall ducting to date as well as a bit of a close up for my lathe attachment
cheers
Mick
after almost 6 months after moving, I have my DC up and running. It is a cyclone with a 3kw motor. I have the motor and impeller in a separate room and so far have only the lathe setup with an attachment for between centre turning (inside of bowls with a swivel head is next). However, I already have questions (with some photos to help explain)
1. Noise
I separated the motor and impeller into my attached 'woodshed' and I am very glad I did, as this is far noisier than in my main shed. So.........
a) the main noise is the air being sucked through the ducting. When I open up the blast gate for the lathe there is a significant increase in noise. However, if I just open up the blast gate which has no flexi attached it is much quieter. Is it the actual flexi causing the noise or the fact it has significant bends in it - or both? I am certainly willing to move things about for better results.
b) there is a lot of noise at the bottom of the cyclone (where it enters the bin). Is this normal or is it likely that I do not have this sealed properly? I have certainly made a big effort to seal the bin and from listening I could not detect a sealing problem.
2. Suction
a) When doing some turning, anything significant in size is NOT sucked into the DC. This is not unexpected. However, when I manage to take some very fine shavings or am scraping it looks like all of the fine stuff is being sucked up (which is the main game), however how do I test this? From memory (thanks to who else, but BobL) I believe there is a practical way of determining the effectiveness - place some wide and shallow containers around the shed and see what drops in there after doing a turnng session. I assume if I wait until the next morning and check things out I can see how good or bad my extraction is (ie: whether there is any dust settled on the water). Does this make sense?
b) From my 'put my hand near the outlet' test it seems that the outlet for my lathe (with its bent flexi) is definitely not as good as a straight run - this must make sense so I am thinking of how to have a straighter run and less flexi - any comments / thoughts most appreciated.
Photos leave 'a bit to be desired' but are trying to show my overall ducting to date as well as a bit of a close up for my lathe attachment
cheers
Mick
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