DIY Rock Tumbler (Design/Build)
ฝัง
- เผยแพร่เมื่อ 2 มิ.ย. 2024
- I have some rocks I need to tumble, so of course I decided to build my own rock tumbler! Check below for all the parts used.
Here are all the parts on Thingiverse: www.thingiverse.com/thing:465...
Rock Tumbler Drums (MJR) - www.ebay.com/usr/mjrtumblers
612 RPM Motor - www.servocity.com/612-rpm-hd-...
Motor Speed Controller - amzn.to/2Upjh0q
Pulleys and Belts - amzn.to/38ILQOX
Rubber Feet (fit into channels with 1/4-20 nuts) - amzn.to/3nrRMjw
Follow me on Facebook: / robertcowandiy
00:00 Introduction
00:56 Design Overview
01:52 Frame
03:22 Bearings
04:16 Drive Motor
05:32 Prepping the Rollers
06:26 The Tumblin' Drums
07:00 Final Assembly
07:29 Finished Product
08:30 The Control Box
09:39 The Hinge Mechanism
11:20 Rock Tumbling Takes Time
12:22 Additional Content - แนวปฏิบัติและการใช้ชีวิต
Yes this is how I want to spend my free time. It is actually kind of therapeutic.
Kinda ? 😎
"You know, that's probably the most important feature of a rock tumbler. It's being able to control the tension of the pivoting display for your motor controller."
10/10 - Brilliant line and perfect delivery. :D
I see This Old Tony has had some influence on you. 😄
I have been watching a LOT of ToT lately. It's really hard to not copy him.
I read about how to make an industrial tumbler out of a rear axle of a big semi truck with the rims and tires in place. You want to cut an opening in the highest part of the rim to load rocks. The article said a cover is not needed but I always thought if I was going to do one I would have a hinged door sealed with inner tube rubber. The idea is to set up a motor geared down so the tires rotate slowly and all the rocks stay in the lowest part of the tire at all times tumbling over each other. Each tire can hold about 100 lbs of rocks and you have 4 tires going at all times each one with a different grit. Always use the same tire for the same grit. You rotate the rocks once a week and you have 100 lbs of polished tumbled stones each week. I have been wondering if you could use quartz sand as grit for the first stage to do the rough rounding off? I am posting this on all videos about rock hounding to spread the idea, if this is you channel and you do not like that let me know. The fact that the tumbling will all take place in a rubber tire should help keep the noise down. The rocks should never touch the rim. I have suggested to people that they make a soundproof shed just big enough to be practical so the noise will be minimized. Plus the rubber in a tire is thick and should absorb a lot of the noise. Also you should have a small fan on the motor to keep it cool. A high quality motor will be a must as it will run 24 hours a day. I am no expert but with the proper gearing the motor should not be under too much stress. I would sell the tumbled stones. Once tumbled, you grade them by quality and type. Some would be really valuable. I bet you could average $10 usd per pound with just good found material and more if you have high grade material. Definitely not for the weekend rock hound but if you sell stones or want to, what a cheap way to start. You could tumble other people's rocks for a fee or shares too. You could make one with car tires for a smaller scale operation. There has to be a lot of people with 30 year in the making, 3 ton pile of rocks out behind their house. With this they could see results from all that collecting.
loved the awkward pause at the end, subscribed, thanks
Nice hing... Err.. rock tumbler!
That hinge is nice!
I like it!
As a full on cad/cam/cnc machine guy who still has two large Haas milling machines out in his garage and has built complex automation stuff....that's bitchin'. Way to go!
Love the project and I am building on now. What is the current rating for your power supply. Do you have a link to the one you used. Thanks in advance!
That’s cool
Facinated with your skill sets.. Does the motor come with the power whips? I'm new to robotic motors and small electronics. Not sure what wire/harness is needed to connect to the variable speed controller. And does the controller plug into a 110 outlet?
Love the project and am building it now. Do you remember how many watts the power supply was rated for? Thanks!
So this is what being first feels like
A trick you can try next time for the vinyl tubing (dont know if it will work but Ive used it to solve similar problems) is to coat everything in soapy water. Makes everything slide on easy enough and is just as grippy once the water dries up
Ah, good idea. It looks like I struggled a lot on camera, but it was about 5 minutes. But it was a bit tricky for sure. I'll remember that for the next rock tumbler I inevitably make.
@@RobertCowanDIY hahah for sure 👌 just another one for the mental tool box
Could you use o-rings on the rollers to engage with the grove in the drum. Would keep drums the place and provide drive at the same time.
HEY! That's a really good idea. I feel like the o-ring might still want to move around, but it could probably keep it in place, since there's no real side load. Nice idea.
I noticed that you didn't have a power supply listed I found one on ebay a Mean Well DR-60-24 Rail mount W/ rail segment will this work , Thank you
At the end there with the totally not judgement, I think it would be pretty neat if the rolling bins were see through.
Having tumbled before, the inside of the containers see a LOT of wear. Any clear plastic would be cloudy after a few hours. Glass even gets etched pretty bad.
please tell me the Rod Dia ,Bearing size, and any bolt screw nut size and length . my parts are on order and all of the 3D items are being printed. Thank You
Ooh, that NDA must be driving you nuts... ;-)
6:21 My friend showed me that rubbing alcohol makes sliding bike grips on much easier. Might work for that tubing as well.
Ah, that would work. I was thinking of using a liquid to make it go on easier, but I didn't think of an alcohol that would evaporate away.
@@RobertCowanDIY Yes, we use alcohol for that kind of stuff at work all the time.
Was the use of a 24v supply with a 12v motor on pwm an intentional attempt to reduce heating at low duty cycles or did you just happen to have a 24v supply laying around?
Intentional. It gets me more speed.
im.not sure if this is a good idea or not but look into silicone turbo couplings for large trucks and semis. i know for a fact they have a 6"-4" adapter. short length of 6"pvc and you can make any drum you want
Ah, good idea.
Really like that last mechanism! Did you mention which filament (color) you used?
Yes, I did. It's in the Thingiverse link as well.
sounds like a perfect tool to drive the neighbors crazy....
HA! I think my router, dust collector, or CNC are all louder. But if I run all of them at the same time...
@@RobertCowanDIY i expect the tumbler to run over night if not for days 24/7... a thing you hopefully don't have to do with your dust collector.
@@rarbiart True. We will most likely be running it in our basement and our nearest neighbor is at least 100+ feet away from our house.
Robert. Wonderful design and engineering on your rock tumbler. I'm thinking about making a variation of your excellent design. My question has to do with the DC motor you've chosen. Most tumblers that are well made such as the Lortone's use simple AC motors that have some internal cooling plus they add another set of fan blades on the motor shaft to keep things cool. Being a rock tumbler could be running 365/24/7 that's understandable. Definitely continuous duty. You mention this need in your video. I'm unaware of DC motors being used this way. So, my questions are how is your DC motor holding up, does it getting warm running 24v on a 12v motor, and do you think it'll survive years of continuous use? Thanks again and great videos.
DC motors are fine. Most companies use an AC motor because it doesn't require any power supply and is just simpler to implement. I just happened to have DC motors on hand. Either one works just fine.
@@RobertCowanDIY thanks Robert.
Hi Robert. Do you plan to share the STLs? Thanks!
BAM! www.thingiverse.com/thing:4656993
Ending of the video is great, I laughed so hard! Good job, my daughter wants a rock tumbler(till she finds out how much work it is). Question how has the motor held up over time?
The motor should be fine, we're not pushing much power into it. It should be good for years.
@@RobertCowanDIY Thanks for the reply!
What size bearings are the pillow block STLs designed for?
The pillow blocks are for a 30mm OD bearing, and of course you can choose the ID for whatever rod you used, I did 8mm. The block will accept up to a 10mm thick bearing.
Hey Robert, where did you get the box from for the electrical components?
It was in my parts bin. But you can get stuff like this from amazon, just search for project enclosures.
@@RobertCowanDIY Thanks, I found 1. Your power supply is 24v correct?
Starting to build. What bearings are these made for?
I used 6200 bearings. 10mm ID, 30mm OD, 9mm depth.
Hey just a combat robot question but do you know of a good tutorial for a 1lb belt system for a horizontal spinner
That's like saying "how do I get rich quick?". There are a lot of ways to go about it. Watch my videos about belts, and try to apply the theory to your own design. There are many options. Don't get focused on the right or wrong way to do something, focus on what you're trying to accomplish, then just make some decisions to limit your choices, and pick an option.
@@RobertCowanDIY ok thx you
The amz link is for 5mm pulleys but the shafts in the video look to be much larger, I'm guessing 8 or 10mm?
Good eye. I did actually drill out the bores to the appropriate sizes, so I never really bothered to get the right size bore on Amazon. I think the shafts are 8mm. I just bought some pulleys and made them work with what I had, but you can certainly find pulleys with the correct bore.
@@RobertCowanDIY :+1: Would you consider posting a f3z? I would be more than happy to pay for the originals to save the effort of having to redraw parts if I want to tinker with the design.
I think you've invented reverse asmr Robert.
OOOH, that's gonna be the next April Fool's video.
How has this held up ? My tumblers run nearly 24/7.
I admittedly haven't used it all that much, but it's holding up just fine.
Where did you get your aluminum extrusion? I want to get a bunch of it but i want a reliable source that is not super expensive. The cheap Alibaba extrusion is not reliable but cheap and Misumi is very reliable but super expensive.
Is there a good balance that you know of?
I just buy from eBay. There are sellers on there. I've had these extrusions forever though. I look on craigslist too, some people will get rid of a lot of random extrusions from time to time.
@@RobertCowanDIY Interesting and are you not worried about mixing and matching the extrusion you have
So is 40 rpm ok for all phases, no need for a timer???
Well, it's adjustable. I think the rule of thumb is about 1 rev per second, or roughly 40-60 RPM. But bigger or smaller drums will spin faster or slower, so I made it adjustable. For a timer, I am just going to use a plug-in timer, which is just a bit easier.
We’re in the middle of a pandemic, what else do I have to do, I’ve already exhausted every known episode of Cobra Kai on Netflix...
Would you consider selling one?
yeah I would buy one also.
I use a rock tumbler to post process aluminium parts I have milled. Works very well! (Example: ms-hobbyhorses.se/kappis-tillbehor/lg-bridle )
Do you sell them?
no.
awful noisy... but i think it could be tuned out in another room or something....
Am I the only person here who has never even heard of a rock tumbler?
Quite possibly! You should stick around and see the results. You can literally take rocks from landscaping and polish them up to look really awesome. It just takes some patience (and a rock tumbler...)
Overly engineered
*appropriately 😎
What size of rods were used?
8mm.