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Post by fyddler on Sept 9, 2018 22:11:50 GMT
I have looked at several of the designs for dust boots for the DW618 and have a question. My concern is with most of the designs is that they encompass the base of the router. Does anyone find that the exhaust from the router is counter productive, blowing the dust out of the boot before the vacuum can suck it up? Just curious if moving the dust boot below the bottom of the router deflecting the exhaust away would work better?
It would be a more complicated design, but would it be worth it?
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Post by Bruce on Sept 10, 2018 18:48:31 GMT
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Post by Mototech on Sept 11, 2018 0:29:17 GMT
I never thought about the router exhaust affecting the dust shoes suction. I have a 5gal 6hp shop vac running 1.25" hose thru a dust deputy. And have to get the hose pretty close to the bit to get all the chips. I designed and fabbed my own dust shoe for my dwp611 on my carve king. But now that you mention it, I do remember chips somewhat being blown by the router exhaust before I added the shoe. Thinking your beefier dewalt may put out more exhaust.
Edit in: My design will not allow the z level to be moved. Thus I'm working on another design that would allow me to move the shoe up and down for different length bits. A more complex design that allows the shoe to move up and down would definitely be worth it IMO.
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Post by Hommer Woods on Sept 11, 2018 1:02:55 GMT
This issue intrigued me since I have noticed the router venting blowing dust out too. I have created something for my dust shoe that forces the venting out the side while still allowing me to raise and lower the shoe. Will see tomorrow if I think it makes a difference. It is milled in 1/4 MDF with a 1/8 pocket and a slot on the side to allow the air to escape there and basically blow directly toward the vacuum port. |
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Post by fyddler on Sept 11, 2018 3:25:31 GMT
When I built my first CNC router I made a dust boot that was below the router based on feedback on the forums I was on for this reason, but most of the designs I see are mounted to the router.
I'm currently working on a design based on the CNC Router Parts design, but not sure how to re-design to have it below the router. I'm thinking about making something out of a piece of PVC to accomplish what you are doing Hommer, and then clamp the boot onto that. Or maybe machine something out of 3/4" EPDM.
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Post by Hommer Woods on Sept 11, 2018 10:41:05 GMT
When I built my first CNC router I made a dust boot that was below the router based on feedback on the forums I was on for this reason, but most of the designs I see are mounted to the router. I'm currently working on a design based on the CNC Router Parts design, but not sure how to re-design to have it below the router. I'm thinking about making something out of a piece of PVC to accomplish what you are doing Hommer, and then clamp the boot onto that. Or maybe machine something out of 3/4" EPDM. Here is a thread with more about my dust shoe. I like the fact that it can be raised and lowered easily. millrightcnc.proboards.com/thread/1357/new-dust-shoe |
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Post by Hommer Woods on Sept 11, 2018 22:42:35 GMT
This issue intrigued me since I have noticed the router venting blowing dust out too. I have created something for my dust shoe that forces the venting out the side while still allowing me to raise and lower the shoe. Will see tomorrow if I think it makes a difference. It is milled in 1/4 MDF with a 1/8 pocket and a slot on the side to allow the air to escape there and basically blow directly toward the vacuum port. This router venting issue was bigger than I even realized. I did several cuts today that would have normally required that I vacuum out the machine when finished. With the rerouting of the vent on the router the machine was nearly as clean when I finished as when I started. Worth considering if you are using a router. |
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Post by Bruce on Sept 12, 2018 3:32:25 GMT
Interesting. Thanks for all the dust shoe R & D, Steve.
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Post by fyddler on Sept 12, 2018 4:14:01 GMT
This issue intrigued me since I have noticed the router venting blowing dust out too. I have created something for my dust shoe that forces the venting out the side while still allowing me to raise and lower the shoe. Will see tomorrow if I think it makes a difference. It is milled in 1/4 MDF with a 1/8 pocket and a slot on the side to allow the air to escape there and basically blow directly toward the vacuum port. This router venting issue was bigger than I even realized. I did several cuts today that would have normally required that I vacuum out the machine when finished. With the rerouting of the vent on the router the machine was nearly as clean when I finished as when I started. Worth considering if you are using a router. Yes, thanks for your research! I realized how much exhaust the DW618 created until I surfaced my spoilboard. I tried chasing the router with a vacuum and the MDF dust was blown away faster than I could suck it up. Here is my design so far, based on the CNC Router Parts free design. I used 1.25" oak for the mount only because it fit the thickness I was looking for. The DW618 has the router lock on the bottom, so I needed to clear it. Magnets and brush will be delivered by Amazon tomorrow. Really excited to get it mounted and tested. |
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Post by aquanub on Sept 12, 2018 16:24:21 GMT
So the general consensus is to not cover the bottom of the router with a dust shoe design because it needs to exhaust that air correct?
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Post by Hommer Woods on Sept 12, 2018 16:40:41 GMT
So the general consensus is to not cover the bottom of the router with a dust shoe design because it needs to exhaust that air correct? I did not want to completely seal the vents so in my design I created a pocket with a vent in the side. Hopefully this still allows enough air flow to keep the router from burning up. My goal was to redirect the flow not block it completely. I did a 40 minute mill with it and the router did not heat up. In the pics the one after the cut has some dust on the left side which was caused when the dust shoe collided with a clamp and got pushed out of place. Had that not happened there would have been very little dust. |
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Post by fyddler on Sept 12, 2018 18:17:10 GMT
So the general consensus is to not cover the bottom of the router with a dust shoe design because it needs to exhaust that air correct? The goal is to not vent the router into the dust boot to achieve better collection of the dust while allowing the router to vent normally so it doesnt burn up. FYI, if you google DW611 air diverter there are existing designs that bolt right to the bottom of the router. Due to how the DW618 is built this wasn't an option for me, so I created a clamp that drops the boot below the vents and allows plenty of airflow. |
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Post by aquanub on Sept 12, 2018 18:31:36 GMT
So the general consensus is to not cover the bottom of the router with a dust shoe design because it needs to exhaust that air correct? The goal is to not vent the router into the dust boot to achieve better collection of the dust while allowing the router to vent normally so it doesnt burn up. FYI, if you google DW611 air diverter there are existing designs that bolt right to the bottom of the router. Due to how the DW618 is built this wasn't an option for me, so I created a clamp that drops the boot below the vents and allows plenty of airflow. I have a 618 as well. Looking at different dust shoe designs. I really wish I could position the boot independent of the Z but I dont think its possible given how the Z axis is put together. |
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Post by Hommer Woods on Sept 12, 2018 18:50:06 GMT
So the general consensus is to not cover the bottom of the router with a dust shoe design because it needs to exhaust that air correct? The goal is to not vent the router into the dust boot to achieve better collection of the dust while allowing the router to vent normally so it doesnt burn up. FYI, if you google DW611 air diverter there are existing designs that bolt right to the bottom of the router. Due to how the DW618 is built this wasn't an option for me, so I created a clamp that drops the boot below the vents and allows plenty of airflow. I totally agree with you and am continuing to refine my design. Got some ideas from the others online. My goals are: 1-Stop the venting from getting into the shoe. 2-Allow venting to happen so the router doesn't burn up. 3-Allow the dust boot to be adjusted up and down independent of the router. The third item is so I can keep the bottom of the brushes as close to the end of the bit as possible even with short bits or raise it up when doing a deep cut where the boot gets compressed down to much to the top of the stock. If the deflector is part of the shoe is doesn't allow this to happen. That said my next attempt will be to create it as part of the boot but with clearance inside to allow moving the boot up and down about an inch. Hard to describe. Not sure I will succeed but I like a challenge or maybe I am just stubborn. |
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Post by Hommer Woods on Sept 12, 2018 21:28:16 GMT
Redesign. Made this one in 1/2 inch MDF. Cut the channel 3/8 deep to give more room for air flow. The slot at the back is where it vents out. If I raise the shoe and it ends up inside it vents toward the vacuum port. This test was a 10 minute mill in pine with a 1/8th bit. Router stayed cool. Hard to tell that any dust escaped. Done for now. Will see if my router burns up or not over time but doubt that it will. |
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