DIY Mini Rock Crusher V2.0 (still no welding!)
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- čas přidán 6. 09. 2024
- This is the second (or maybe third) iteration of my DIY rock crusher. I have made some significant upgrades from the original that I posted a few years ago. Particularly with the addition of flange bearings on either side of the unit and removal of the outlet port. I also made a full steel end plate as opposed to the previous one that was plywood with thin steel overtop.
I have crushed a number of samples with this and it works great. I still have an issue with vibration due to the coupling nut not aligning perfectly between the angle grinder bolt and the threaded bar I use as a shaft. Or it might be that my angle grinder is off-center. This problem was less pronounced in the older version since I used a much shorter bolt for the shaft.
Purchasing a mini-mill like this online including delivery will cost between $250-$450 USD and I was able to build this one for under $100 CAD ($75 USD). It has the added bonus of being able to replace the steel liner pieces as they wear out, versus the expensive mills online that do not have replaceable liners and would have to be tossed out or welded to repair.
#goldprospecting #goldmining #mining #DIY #prospecting #metallurgy #mineralprocessing #goldpanning #smelting #rockcrusher #chainmill #fossicking #gold
What you really need is a vacuum set up somehow and one way valve to drop rocks through so the dust flying up gets collected but rocks don't escape either.
If you shortened the exposed bolt you would be removing the mass there which is adding to the wobble in the unit, looks good and solid though.
I've seen others where they have an outlet port that drops into a bucket with a sealed lid. The lid then has another outlet tube leading to a vacuum so the material drops in the bucket but the dust is drawn out of the top. I think I might give something like that a try!
Thanks for you thoughts on the wobble. I might look at chopping some of that extra bolt off!
Cheers.
@@LetsCrushRocks I like that bucket idea for it. I've been trying to figure something out for mine and was coming up empty. So thank you too.
Loved this video and the previous ones. I'm about to try and make my own. Where did you get the bearings?
Thanks!
I got the bearings from Princess Auto in Canada (C$14.99 each)
www.princessauto.com/en/2-bolt-standard-duty-flange-mount-bearing-assemblies/product/PA1000001323?skuId=3870177
You can get them on Amazon for a similar price, sold as a pair.
www.amazon.ca/PGN-UCFL202-10-Pillow-Mounted-Bearing/dp/B07W7LHWTM/ref=sr_1_2_sspa?sr=8-2-spons&sp_csd=d2lkZ2V0TmFtZT1zcF9hdGY&psc=1
The Princess Auto ones have a bit of a void space behind the bearing that I don't like. I can't tell from the images of the PNG bearings if they have the same space or not.
If you are in Canada and looking to buy a steel plate, I found this one at Princess Auto that was the cheapest option:
www.princessauto.com/en/12-x-12-x-3-16-in-44w-plain-steel-plate/product/PA0009055120
@@LetsCrushRocks Thanks so much!
But… Why?