How to "control" resin shavings while turning

[Mike]

Does anyone have experience with this cyclone dust separator? It's about 1/3 the price of the dust deputy.

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Mike

 

[NJturner]

FYI, the blue barrel in my photo is a 30 gallon.

Mine is from Oneida - it came in a promotion from them with the Dust Deputy pre-drilled for the unit. I didn't have the room for a larger barrel, although it would have helped with large turnings.

Blue plastic 55 gal barrels by me are basically free for the taking at all the marina's around me, as they buy food grade antifreeze for the winterizing of pleasure and fleet operations boats in them. Not sure about by you, but the same barrels are often available at motor home or campground service areas - as the antifreeze is pretty universally used for water systems in campers and motor homes wherever there is the potential for freezing. Might be a good source.

Kevin

 

[rixstix]

For me, the streams of shaving are so light that they regularly don't enter the DD vortex to fall into the chip barrel and instead just go from inlet directly to outlet & into the fan as a "mile long" shaving. Or, the shaving instead balls up on the blank being turned.

Remedies for either? Or both?

 

[NJturner]

For me, the streams of shaving are so light that they regularly don't enter the DD vortex to fall into the chip barrel and instead just go from inlet directly to outlet & into the fan as a "mile long" shaving. Or, the shaving instead balls up on the blank being turned.

Remedies for either? Or both?

I don't have that, as I don't get any resin stuff in the filter bucket. I am not an HVAC expert, but I might suggest looking at the air path - check all pathways to insure that your DC can 'breath' - meaning pipe diameter and length of air feed pipes are as short as possible and well sealed. Most DC's are tuned for 4-5" diameter pipes, with minimal bends and length to get real CFM numbers. If you don't have the proper pipe diameter into the DC, the velocity and volume of the air into the system is affected and if it's not close to optimal would reduce the effectiveness of the cyclone action of the Dust Deputy, since it doesn't have enough air to get it spinning up for true seperation.

Kevin

 

[rixstix]

I didn't realize this thread had graduated to page 2 & missed David's pic of streamer swarfbirdnest. That shows the ribbons are so lightweight that they bypass falling into the barrel & just get sucked straight though to the impeller, instead of falling into the chip collector drum. A single pen barrel's worth of steamer can clog the impeller inlet & end up clogging the filter instead. Broken streamers seem to behave as chips.

So are there any ideas for breaking the streamers upstream of the 4" DD inlet? My Shop vac version collects streamers in the 5 gallon bucket as hoped.

 

[Mike]

Rick,

"Streamer swarfbirdnest" I love it. Very apt description of the mess I found in mine, but mine was not nearly as big. My wife puts cotton balls and maybe other stuff inside little balls she makes from brass wire and hangs in the trees. The birds love it, they take it for nest building. I will have to give her some of the streamers to add.
I decided I am going with the Super DD. Lots of negatives in the reviews of the Vevor. Seems as usual, you get what you pay for.
I saw Donaldson filters and they are cheaper, but they are not designed for inside out filtration like the Wynn filters are.
Anyone with a Wynn filter have issues keeping it clean? And how do you clean it? I saw at least one person said if you clean the Wynn filters with compressed air it damages them. Anyone have that issue?

Thanks,
Mike

 

[d_bondi]

Rick,

"Streamer swarfbirdnest" I love it. Very apt description of the mess I found in mine, but mine was not nearly as big. My wife puts cotton balls and maybe other stuff inside little balls she makes from brass wire and hangs in the trees. The birds love it, they take it for nest building. I will have to give her some of the streamers to add.
I decided I am going with the Super DD. Lots of negatives in the reviews of the Vevor. Seems as usual, you get what you pay for.
I saw Donaldson filters and they are cheaper, but they are not designed for inside out filtration like the Wynn filters are.
Anyone with a Wynn filter have issues keeping it clean? And how do you clean it? I saw at least one person said if you clean the Wynn filters with compressed air it damages them. Anyone have that issue?

Thanks,
Mike

I do two things. 1) use compressed air, but turn the PRV down to ~60 PSI and 2) use my shop vac with a brush attachment from the inside. I do it every 6 months or so. My design (see pic in previous post on p1) allows me to unscrew the 5 gallon bucket under the Wynn filter and access the inside of the filter. That bucket is to catch anything falls through the filter.

 

[d_bondi]

I didn't realize this thread had graduated to page 2 & missed David's pic of streamer swarfbirdnest. That shows the ribbons are so lightweight that they bypass falling into the barrel & just get sucked straight though to the impeller, instead of falling into the chip collector drum. A single pen barrel's worth of steamer can clog the impeller inlet & end up clogging the filter instead. Broken streamers seem to behave as chips.

So are there any ideas for breaking the streamers upstream of the 4" DD inlet? My Shop vac version collects streamers in the 5 gallon bucket as hoped.

I haven't had any issues with swarf building up since I removed the safety grid on the inlet of the blower. That was the purpose of that post, sorry if it wasn't clear.

 

[rixstix]

I haven't had any issues with swarf building up since I removed the safety grid on the inlet of the blower. That was the purpose of that post, sorry if it wasn't clear.

So the streamer swarf is not dropping into the blue drum but carrying through the DC fan into the filter & falling into the 5 gallon bucket ( that I didn't notice earlier)?

Thanks for pointing out what my eyes missed. The inlet of my HF DC motor is more of a plastic screen than your plastic crosshair. I was concerned about impeller wear & doesn't sound like a problem now.

 

[d_bondi]

So the streamer swarf is not dropping into the blue drum but carrying through the DC fan into the filter & falling into the 5 gallon bucket ( that I didn't notice earlier)?

Thanks for pointing out what my eyes missed. The inlet of my HF DC motor is more of a plastic screen than your plastic crosshair. I was concerned about impeller wear & doesn't sound like a problem now.

No, not exactly.

Most of the streamer swarf is now dropping into the blue drum under the Super Dust Deputy. Less than 5% is making it into the canister filter, and what does is dropping into that "fines" bucket.

Here are pictures from the last time I cleaned it out.



It is hard to tell from the pictures, but there is about 20" of material in the blue drum and it is twice the diameter of the 5 gallon bucket.

The issue with the swarf birds nest was that it once a little of it got caught on the inlet screen/crosshair (which was steel), it just kept building and building and building until it choked out the system. That no longer happens.

I hope this explains it better.

 

[NJturner]

I keep my Wynn filter on the DC clean in two stages - an infrequent major disassembly and regular interim cleaning. For the interim cleaning, I first empty the filter catch bucket and then lightly tap the whole exterior of the filter with a rubber mallet, which usually allows anything on the inside to drop down into the filter catch bucket. I usually get a fair amount of fine stuff dropping into the bucket during this step. About twice a year (based on usage of the DC), I unscrew the filter hold downs and remove it from the DC shelf. I then do like @d_bondi said and as recommended by Wynn Environmental themselves, use a lower pressure airstream (40-60 psi) from the top of the filter in a downward action to blow out anything easily removed from the filter. I then vacuum the whole inside of the filter with my shop vac. A few taps along the way to dislodge anything that may be hanging tough. My filter is probably about 8 years or so old and based on what ends up in the buckets, it's still doing the job, so I think this type of cleaning is not overly harmful to the filter.

Kevin

 

[Mike]

Thanks everyone for the replies.

Mike

 

[NGLJ]

I gave up trying to collect "plastic" shavings. Collecting it near the lathe is one thing, but getting it to the cyclone is another. They tend to form "balls" that can choke the line requiring clearing the line. Now I just let it fly and pick up with a separate "dust" collector (dust deputy + Rikon). Unlike sawdust, it doesn't have the same dangers, but not sure about ebonite. You can't beat the smell of burning rubber . Material collection is one of those subjects, which can create endless debate, eg. CFM vs suction pressure. Like many, I started out with the typical fan type of dust collector, and eventually went to a "high suction/low CFM" device, which is much better. The impeller is only 4" in diameter, but it sure "sucks"! Actually, it is 2 units in parallel. You can go up to 3 units.