J. Phil Thien's Projects

@mbeam

Same concept, different build method.... if you are a visual learner then you are going to be very happy when you click the link. You can use that info to build any design, like RetVet or your own.

Blow off the dust when you go its been buried for a few years.....
http://www.jpthien.com/smf/index.php?topic=429.msg2187#msg2187


-Jason

UPDATE:

Just wanted to give an update sine this has been in usage fore quite some time now.

First off, I have changed my mind about rolling the bag (rolling it up with a zip tie or capping the bottom) because after using it like that I found that while it decreased sound output...it also was hard to tell when my can was full and push bypass chips into the filter rather than drop them in the bag.

So the bag now freely hangs, and in hindsight has become very useful. When I am in production mode...if I fill up the can, I do not like to stop until I am done with that run. So the excess chips just go into the bag. The con to it is I eventually have to change the bag, but it is usually a 20:1 ration of cans to bag changes. I have at least 100+ can changes at this point and it has held up fine.

Thanks to all of you out there that have given feedback. If you like this series I have been working on some other cool builds as well.

https://www.youtube.com/channel/UCtkFlqdY9x6pq8EDk1RGIhQ


Jason
Wetland Wood Works

retired2-

the foam is a very good modification. I had originally thought about it in my design but decided against it because it would have meant a thicker wall in the mdf. However, I would consider it for sure going the rout you did with the plexi.

If I get bored enough I may redo it all again just for fun...got a little better idea in my head that would make building even easier even if the results were just the same.

This works
http://www.jpthien.com/smf/index.php?topic=429.0

I think you figured out your problem... Your inlet is to restrictive..you are starving the beast. Also the height might be adding to the problem.

I made mine just over 6".....just taller than my inlet and it performs very well. I am sure there is some loss in suction, but I can not tell the difference and neither do the machines.

hope this helps
http://www.jpthien.com/smf/index.php?topic=429.0

I ended up rolling the bag into a ball and then put a thick zip tie on it....it hangs slightly under the metal and off the floor..out of the way. It has considerably reduced the noise because it does not allow air to swirl around and create turbulence.

That is a good point. Cheaper as well and probably will provide sound deadening. I believe the bag is the loudest part on the system right now. If I can make the seal air tight around the opening I will forgot the bag entirely and put a clean out into the center of the disc. That way I can periodically knock the fines out of filter while having a shop vac hooked up to the clean out line and have an almost maintenance free system.

I will do some before an after pics/videos to document it. Hopefully this will quiet it down without impacting performance. We will see.

That is a good idea about just cutting the bag smaller because there is no reason to have a full sized bag hanging around. Does that lid fit tight or did you modify it. Also what size container is it from. I am going to try and get it by itself if possible.

What/where did you get the plastic lid and retaining clip from? Looks like there is a little bit of a dip in the middle...perfect to plastic weld a 2" PVC pipe to it with a screw cap as a clean out.

The ones I purchased are not like that. They are smooth in the direction of flow and are made in the USA.

I found them to be cost efficient and very well made. The shipping was actual charge and not a flat rate. Everything came as I ordered and I felt I got a deal.
http://www.kencraftcompany.com/Dustindex.htm

I was going to be coming of a 6" line and splitting it into a 4" and 3" then down to 2-1/2". I have run previous tests with a 2" line and all have been unsatisfactory. However, I was just wondering if you got different results. I think for the small ducting like that I will stick with a shopvac.

Thanks

Nice work. I like the hammered green paint job as well.

How well does the little 2" line suck. I know you have it on a wye...I was considering adding something like this for a dust hood, but fear the dust collector can not give me enough airspeed to pull dust from the 2" line.

6" main ducting is the answer to your problems.

The 4" duct can only flow a best case scenario max of 400 CFM while a 6" duct can do double that at 800 CFM. There is probably not a single tool in your shop than needs more than 800 CFM. If anything a widebelt sander would require it when it has 3-4 4" or 5" exhaust ports.

The brute garbage can will withstand the force of this with zero problems, however having something like your DC pulling  as much vacumm with a choked airflow will cause issues. A simple spring loaded bloow off valve could be built into your separator would solve this should the situation arrive.
http://www.jpthien.com/smf/index.php?topic=198.0

You could have 400' of duct work in your shop and as long as your runs were no longer than 30 feet your powermatic will not blink. Also, consider that you may not want to completely air tight seal all of your joints near your terminating drops. This will allow a little extra bleed as to not starve the beast when running only 4" pipe. However all joints along the main should be very tight.

The SP and CFM power of your powermatic will over come any issues with branch lines, elbows and wyes running 6" main ducting as long as you do it correctly and give you a constant max flow CFM that the duct is capable of.

6" (I believe 26ga) HVAC ducting is available at Lowes for a lot less money than spiral ducting and has worked just fine in the 3 shops I put it in.

Bulldog-

Its been a while and just wondering if you ever put on that muffler and if so did it work out for you?

-Jason

Lee is also using a small CNC cutter to speed up the process. I have gotten into plastic fabrication, it is not difficult but it is time consuming.