Yes all of my dust collection is grounded. I haven’t had any issues with that
Probably a dumb question, but what material is your spoilboard for aluminum? Is the IPA safe for an MDF spoilboard? I’m thinking I could put a thin layer of something else down with tape and CA glue, but I’m not sure what material would be best but inexpensive.
My spoilboard is mdf. You aren’t using much ipa. Basically just enough that you can see it hit the aluminum then it evaporates. My mdf never gets wet. Very fine mist. That’s all that is needed to keep the aluminum ice cold. I run my air regulator at about 20 psi and then just adjust the ipa valve on the mister till I barely see it on the aluminum
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I’m hoping to be cutting a few aluminum parts for the V5 either Friday or Saturday and if that works out I’ll take some video on how I set it and how the mist looks on the aluminum. Hopefully that will help take some guess work out of it
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Did you buy your sheets of aluminum locally or online? Would love to get some learning done on aluminum!
I go to a local welding shop and get drops usually. Aluminum isn’t cheap but it’s not terrible if you don’t need a bunch
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Thanks Jonathan! Just ordered these for my LR4. Since it’s been a while and you’ve used your mister a bunch, is there anything else you’d get, or something else you wish you got instead?
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No problem. Glad the info was here to help!
No I don’t think I would change anything from what I have now. It has been working well for a long time!
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An inline shutoff valve at the table is handy to have
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Both of mine have shutoff valves built in, and a liquid flow valve.
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That’s a good suggestion. I completely forgot about that part. I have air ran through my garage and I tee’d off of that and put a ball valve and a regulator/water trap. That feeds to the 8mm line all the way down to the LR
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If you mean the two needle valves on the mister ( one for air, one for oil/ alcohol), a separate air shutoff valve is handy, because you don’t have to readjust the needle valves at the start/restart of each job. YMMV…
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Agree 1000% I hate messing with those valves lol
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@ folks with air and/or mist setups. Pictures of your air flow shutoff and/or liquid storage and flow setups would be greatly appreciate! Have been digging earlier posts with Jonathan’s setup, and through @Bartman’s helpful and recent Big Red LR3 pics.
Am seeing a mix of people hanging liquid on the gantry or the bench.
@DougJoseph, got a LR4 kinematic mount (kobalt) that needs Beta testing? 
Resources:
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I don’t yet but will look into it!
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This is why I’ve finally settled that LR4 may be a 2025 project 
. Gotta give Doug time to have a Kinematic Mount, hide the belts, and work all his other magic.
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@Jonathjon and other Misters, is 1" to 1-1/4" gap between nozzle tip and router bit close enough? Am hoping nozzle spray is wide enough we don’t have to be super close and precise to get cooling benefits?
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If you feel with your finger, you can see that the airflow reaches several inches from the nozzle. I check after adjusting the nozzle direction by feeling that the airflow is hitting the bit at the cutting location (obviously not when the router is spinning)
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Yeah I never worried about getting it near that precise. I just point it at the bit mostly. With a flashlight or other good source of light its easy to see where the mist is hitting. As long as its keeping the area around the bit cool and the chips clearish you should be golden
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