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Safe fixturing question for a cutoff operation
- Thread starter markba633csi
- Start date
Install hose clamp around bottle to guide cut..I would clamp bottle however it needs .hold grinder for cut..it will grab and pull bottle if put in bind..be careful.
Job completed perfectly and safely. Thanks for all the comments, I ended up with the wheel cutting downward and it worked fine. I'm glad I took the time to set up a stop to position the bottle in the axial direction, trying to follow a sharpie line by hand would have been a mess.
This part is going to be a bean holder for the hot air coffee roaster I'm building.
I can't believe how much use I've gotten from this little 12$ HF grinder, it's gotta be the best 12 bucks I ever spent!
Mark
This stuff is even thinner than I thought, more like 24 ga. -wicked sharp edges
This part is going to be a bean holder for the hot air coffee roaster I'm building.
I can't believe how much use I've gotten from this little 12$ HF grinder, it's gotta be the best 12 bucks I ever spent!
Mark
This stuff is even thinner than I thought, more like 24 ga. -wicked sharp edges
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Those HF grinders are the bomb
I keep three of them, one for cutoff, one for grinding, and one with a flap wheel disk. Saves having to change out blades and at $12, or $10 on sale it's hard to beat them. I'll be over for coffee soon!!!!
Cheers,
John
Mikey: I've got several options: cannibalized hair dryers, heat gun elements from Aliexpress, and a leaf blower. I might pick up a HF heat gun too since I have a coupon 
I'm sort of copying a Dutch design called "tiny cheap fluid bed roaster" on the net
I also saw a cool drum design using a stainless stock pot and two 500 watt halogen lamp bulbs- more efficient but more involved to build
ps I bought a small 12v blower from Aliexpress for inflating air mattresses and was disappointed. Paltry air flow and noisy like a banshee. Waste of 8 bucks
Impeller design poor, way too narrow, doesn't catch enough air- a shame cause the pump was just the right size
I'm sort of copying a Dutch design called "tiny cheap fluid bed roaster" on the netI also saw a cool drum design using a stainless stock pot and two 500 watt halogen lamp bulbs- more efficient but more involved to build
ps I bought a small 12v blower from Aliexpress for inflating air mattresses and was disappointed. Paltry air flow and noisy like a banshee. Waste of 8 bucks
Impeller design poor, way too narrow, doesn't catch enough air- a shame cause the pump was just the right size
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My brother-in-law has a roasting setup using a perforated steel drum mounted rotisserie-style in an old gas barbeque. There are kits available for this conversion. He has gotten pretty good at hitting the roast level he wants (typically no more than city+).
It seems to be a popular project since so many people like good coffee, there's a million interesting designs out there. Apparently roaster-building is almost as addictive as coffee itself 
I have already accumulated two popcorn poppers, one slightly customized w/ adjustable heat level
They are limited to about 80 gram batches, hopefully my new one will do a bit more
M
I have already accumulated two popcorn poppers, one slightly customized w/ adjustable heat level
They are limited to about 80 gram batches, hopefully my new one will do a bit more
M
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Thanks, Mark. I've been roasting for about 20 years now. I have a Mazzer Mini burr grinder and a Quick Mill Andreja Premium espresso machine, which means that using already roasted coffee is a no-go. I've been down the popcorn popper/fluid bed/drum roaster road and I think its a really fun thing to do. I hope yours turns out well.
I use the old-style convection oven with a popcorn popper base. It is, in my opinion, a fine way to roast coffee. I've tried all the other home brewed ways and find the convection oven style to be the best for me. It definitely beats the Behmor roaster that I bought for my son. I use temp probes to monitor the oven and bean mass temp to detect when the beans get through the Maillard Reaction. It is a much better way to determine doneness of the roast vs just looking at a color chart. I won't go into this here. I just wanted to say ... have fun and enjoy your coffee!
I use the old-style convection oven with a popcorn popper base. It is, in my opinion, a fine way to roast coffee. I've tried all the other home brewed ways and find the convection oven style to be the best for me. It definitely beats the Behmor roaster that I bought for my son. I use temp probes to monitor the oven and bean mass temp to detect when the beans get through the Maillard Reaction. It is a much better way to determine doneness of the roast vs just looking at a color chart. I won't go into this here. I just wanted to say ... have fun and enjoy your coffee!