JR8675309
freely admits to licking rocks
Member since August 2019
Posts: 807
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Post by JR8675309 on Aug 30, 2021 20:10:32 GMT -5
rewdownunder and HankRocks well, I tried to kick start it one more time (w a wooden handle while plugged in) and it started. I turned it off and back on and it ran on its own. Hopefully this will continue. I'm going to set everything up (it was missing the balls and a spring) and see how it runs. I'll need to get some instruction on running a vibe. Wahoo!!
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rewdownunder
spending too much on rocks
Member since March 2012
Posts: 357
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Post by rewdownunder on Aug 30, 2021 20:28:48 GMT -5
That is great news! Maybe its just dirty give it a good shot of compressed air. The photos show a lot of dirt Hank can probably tell you how to lube the bearings. I would still think about a new cord with a ground.
Hank look at the Lortone webpage for the instructions on their new laps. A shaft with the motor offset! looks like an improved design.
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JR8675309
freely admits to licking rocks
Member since August 2019
Posts: 807
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Post by JR8675309 on Aug 31, 2021 9:52:42 GMT -5
Thanks, I'm excited. It's all set up for a test run, but I am going to be cleaning it. In the meantime I ran it and it is LOUD. Do y'all put any sort of sound dampening near it (without obstructing air flow)?
I appreciate everyone's help with this!
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Post by perkins17 on Aug 31, 2021 10:23:54 GMT -5
rewdownunder and HankRocks well, I tried to kick start it one more time (w a wooden handle while plugged in) and it started. I turned it off and back on and it ran on its own. Hopefully this will continue. I'm going to set everything up (it was missing the balls and a spring) and see how it runs. I'll need to get some instruction on running a vibe. Wahoo!! Glad to see it is working! I've been kind of lurking on this thread.
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rewdownunder
spending too much on rocks
Member since March 2012
Posts: 357
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Post by rewdownunder on Aug 31, 2021 10:52:52 GMT -5
is the motor loud? or just the whole thing makes a lot noise. They are not quiet even when new Just the nature of the beast. It is better when you get some weight on it.
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JR8675309
freely admits to licking rocks
Member since August 2019
Posts: 807
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Post by JR8675309 on Aug 31, 2021 14:21:32 GMT -5
perkins17, thank you. I'm beyond stoked to have this show on the road. rewdownunder, no the motor is just fine honestly, the machine itself is loud, but I can live with it. I want to come up with some clever enclosure that still allows the heat to escape (lest I burn out this poor beast). I really do appreciate your and HankRocks' input. FYI I also went out to the Lortone site again and paid attention to the recipe for processing. I'm accustomed to getting everything at TRS I could find 600 grit only at Cutting Edge Supply. Johnson Bros may have it, but the reviews are so mixed and the shipping was high. Incidentally, I was gone to work for four hours and the water evaporated from the lap. While I understand that will happen whether running or not (and I could start an IV drip) I think I'll leave the lap off while I'm gone. Between this and the saw I purchased last month I am in hog heaven.
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rewdownunder
spending too much on rocks
Member since March 2012
Posts: 357
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Post by rewdownunder on Aug 31, 2021 14:34:10 GMT -5
I only buy from Johnson Brothers because I can pick it up in person when I am down that way or at shows. Will not deal with their mail order. Look for a source close to home if you can. Shipping on grit is expensive for a low cost item. I have also heard you can get deals on grit & supplies at the end of the quartzite show in January because once dealers get it there they do not want to take it back home.
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Post by HankRocks on Aug 31, 2021 15:46:27 GMT -5
perkins17 , thank you. I'm beyond stoked to have this show on the road. rewdownunder , no the motor is just fine honestly, the machine itself is loud, but I can live with it. I want to come up with some clever enclosure that still allows the heat to escape (lest I burn out this poor beast). I really do appreciate your and HankRocks ' input. FYI I also went out to the Lortone site again and paid attention to the recipe for processing. I'm accustomed to getting everything at TRS I could find 600 grit only at Cutting Edge Supply. Johnson Bros may have it, but the reviews are so mixed and the shipping was high. Incidentally, I was gone to work for four hours and the water evaporated from the lap. While I understand that will happen whether running or not (and I could start an IV drip) I think I'll leave the lap off while I'm gone. Between this and the saw I purchased last month I am in hog heaven. Loud you say. When mine is empty and running it's pretty quiet. The vibration should be a very low intensity and the pan should not be bouncing at all. Are there pads between the Vibration plate and the grinding pan? And make sure the grinding pan is not contacting any of the bolt heads on top of the pan, that will make a pretty loud noise. The pads on mine wore out and I replaced them with a couple pieces of old tumbler rubber lid gasket and a piece of cork gasket material. Your pan does have a bumper ring? I use clear flexible PVC tubing, say 3/8" usuall keeps rocks from contacting side of the grinding pan Also the grinding pan should be secured in place with 3(on mine) wing bolts thru the side of the plate into the pan. I end up securing two of these bolts in place permanently, and only using one to loosen/tighten to remove or attach the pan. Another tip, for me I use more of the coarse grit than any of the rest as it sometimes takes more than 1 run to remove all the saw marks. Once that's done the other runs use a fixed amount of grit. Getting those saw marks out can be frustrating. They are difficult to see. Some folks use a pencil marked up all over the flat surface. When they are all removed it's flat. That has not worked well for me. I usually just let each piece dry and then hold it up at an angle to a light source and look for marks. It's frustrating to get to the polish cycle and then see a mark that was hiding. arrrrgggghhhh!!! One thing I will say that grit contamination is a bigger factor with lapping. I am on the careless side when tumbling as a few pieces of larger grit that accidently pass on to the next stage(polish stage being the exception), no big deal they will be broken down and damage will be minimal if visible at all. That's sacrilege for some folks for me to say, but it works for me. For lapping, I spray each piece with a hose nozzle set to "jet". Most clean quickly, it the surface of the piece is pitted then extra cleaning is in order. Good luck
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JR8675309
freely admits to licking rocks
Member since August 2019
Posts: 807
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Post by JR8675309 on Aug 31, 2021 19:14:29 GMT -5
HankRocks, no it does not have a pad between the grinding plate and the pan... nor would I have thought to do that. it has 3 main points of contact under pan, should I just add the padding there? I made a ring out of tubing I have but it's just 1/4" and I can see 3/8 would be better. That is good information about the first grind, I can see that's where I need to spend my time, I always have that argh! moment when I'm attempting my version of cabbing.
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Post by HankRocks on Aug 31, 2021 19:50:17 GMT -5
HankRocks , no it does not have a pad between the grinding plate and the pan... nor would I have thought to do that. it has 3 main points of contact under pan, should I just add the padding there? I made a ring out of tubing I have but it's just 1/4" and I can see 3/8 would be better. That is good information about the first grind, I can see that's where I need to spend my time, I always have that argh! moment when I'm attempting my version of cabbing. No padding, that's a bit odd. Anyway just to further isolate the grinding pan from any metal other than the clamping bolts. Try it and see it it decreases the noise. The 1/4" tube will work, sometimes you get a rock that has an overhang that will contact the side of the pan....clang!, clang! clang!!
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JR8675309
freely admits to licking rocks
Member since August 2019
Posts: 807
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Post by JR8675309 on Aug 31, 2021 20:12:13 GMT -5
LOL. "goes the trolley... ding ding ding"... I'm testing all manner of material I have at hand, which isn't a lot. I have a cork placemat somewhere that I'd like to find right about now.
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JR8675309
freely admits to licking rocks
Member since August 2019
Posts: 807
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Post by JR8675309 on Aug 31, 2021 20:56:18 GMT -5
Also HankRocks, the tire shaped base is essentially a drum perpetuating the noise. I'm considering "insulating" the inside of the "tire" to dampen the noise (being cautious of retaining heat of course).
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rewdownunder
spending too much on rocks
Member since March 2012
Posts: 357
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Post by rewdownunder on Aug 31, 2021 22:10:26 GMT -5
Mine has three 2" X 1" quarter inch thick foam pads between the base and the plate. A lot depends on what the whole thing is sitting on. Cement garage floor is the worst. Do the three adjustable feet have pads on the bottom or bare metal? I run mine on the far side of the garage and can not hear it in the attached house.
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JR8675309
freely admits to licking rocks
Member since August 2019
Posts: 807
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Post by JR8675309 on Sept 1, 2021 12:02:40 GMT -5
Mine has three 2" X 1" quarter inch thick foam pads between the base and the plate. A lot depends on what the whole thing is sitting on. Cement garage floor is the worst. Do the three adjustable feet have pads on the bottom or bare metal? I run mine on the far side of the garage and can not hear it in the attached house. Right now it's on a Harbor Freight anti fatigue mat. I did put a may inside and put a foam "ring" around the pan. These steps did not significantly reduce noise.
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Post by HankRocks on Sept 1, 2021 12:27:54 GMT -5
Mine has three 2" X 1" quarter inch thick foam pads between the base and the plate. A lot depends on what the whole thing is sitting on. Cement garage floor is the worst. Do the three adjustable feet have pads on the bottom or bare metal? I run mine on the far side of the garage and can not hear it in the attached house. Right now it's on a Harbor Freight anti fatigue mat. I did put a may inside and put a foam "ring" around the pan. These steps did not significantly reduce noise. It sure sounds like something is not securing tightened. Check the counter weight to make sure there is no up/down movement with respect to the shaft. From the pictures you show, that counter weight is a good bit larger than the one on my machine. Another possibility, one you don't want to hear, the motor bearings are going out.
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JR8675309
freely admits to licking rocks
Member since August 2019
Posts: 807
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Post by JR8675309 on Sept 1, 2021 19:20:15 GMT -5
HankRocks good thinking. I just removed the pan and detached the vibe pan. I turned on the motor and the noise is not excessive but was a heckuva ride holding onto! So I'm back to the pan integration. Something is amiss... just do not know what.
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rewdownunder
spending too much on rocks
Member since March 2012
Posts: 357
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Post by rewdownunder on Sept 1, 2021 19:34:35 GMT -5
I did that too ran the motor by it self about took my hand off. A power strip with a switch is nice to have so you do not have to unplug it to stop it. I think it will quiet down some if you have the weight of the rocks in it everything else being equal.
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Post by HankRocks on Sept 1, 2021 20:32:52 GMT -5
HankRocks good thinking. I just removed the pan and detached the vibe pan. I turned on the motor and the noise is not excessive but was a heckuva ride holding onto! So I'm back to the pan integration. Something is amiss... just do not know what. It needs to be smooth running without any rock load. If it's not it's going to bang the rocks too aggressively. Mine runs with a nice low hum without rocks Check the springs, they should be pretty tight, making lifting the vib plate up at one side difficult with the springs attached. If the springs are too loose it will run rough. What size shock-absorber super balls did you use? they should be very hard. An like I say check the tightness of the counterweight on the motor shaft, any looseness will create a lot of vibration. Just curious, what size is the motor, and the motor rpm?
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Post by HankRocks on Sept 1, 2021 20:34:06 GMT -5
HankRocks good thinking. I just removed the pan and detached the vibe pan. I turned on the motor and the noise is not excessive but was a heckuva ride holding onto! So I'm back to the pan integration. Something is amiss... just do not know what. It's odd, I feel like if I was there trouble-shooting we could resolve it.
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JR8675309
freely admits to licking rocks
Member since August 2019
Posts: 807
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Post by JR8675309 on Sept 1, 2021 21:59:54 GMT -5
HankRocks good thinking. I just removed the pan and detached the vibe pan. I turned on the motor and the noise is not excessive but was a heckuva ride holding onto! So I'm back to the pan integration. Something is amiss... just do not know what. It needs to be smooth running without any rock load. If it's not it's going to bang the rocks too aggressively. Mine runs with a nice low hum without rocks Check the springs, they should be pretty tight, making lifting the vib plate up at one side difficult with the springs attached. If the springs are too loose it will run rough. What size shock-absorber super balls did you use? they should be very hard. An like I say check the tightness of the counterweight on the motor shaft, any looseness will create a lot of vibration. Just curious, what size is the motor, and the motor rpm? Springs: I do have one that's stretched. That very well could be it. Shocker absorbers: 2", medium hardness. Similar to superball. They bounce exactly the same (don't ask) Forgot to check counterweight, but when kick started it, it was tight. Motor: 1/15 HP, 1500 RPM Re: being here: don't tempt me! We can always FaceTime. Will trade rocks for expertise!
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