Please help me build my new roaster.

[fatboy_1999]

Re: Please help me build my new roaster.

Remy,

I run mine off a 12V car battery charger, so a transformer with +/- connectors should do it.
I found with my motor, if the wires were connected the wrong way, the motor spun the opposite way. Dont know if it causes a problem to the actual motor, but in my situation, it actually unscrews my multi-part rotisserie rod, so I always make sure to connect the wires the correct way.

Brett

[Remy]

Re: Please help me build my new roaster.

Im going down the road in a bit,.. and hopefully pick up a cheap wiper motor from the wreckers. What else will I need to get this motor to work?

12V transformer??? if so, got it.
plugs, wires?

I could drop into DickSmith on the way back home,.. but if I knew exactly what I needed that would help.

[facedanzr]

Re: Please help me build my new roaster.

Actually, it is fixed to the head. I just pushed the shaft through the socket, like.....reversed..... :-/ I guess Ill just take a picture

I made the base from some chipboard (thats what my dictionary calls it anyway) I found i my garage.

There are some more pictures at:

http://www.homeroasters.org/php/foru...&thread_id=904

edit: just tested it, and it works just fine. Easily roasted 300g to 2nd in 16 mins with 13C external temperature. 500g.....np

[Remy]

Re: Please help me build my new roaster.

I had to join this forum after reading your post. Ive actually got the exact same TO and I started my project with the same goals in mind. That is, compact, portable and cheap.  I used an windshield viper engine from the local scrap heap. Im worried about rpm count though. I haven t tried it yet, but Im expecting some greens this Friday, so I guess well see then.

Im looking forward to seeing your progress.

Welcome to the forum Dozer!  Im so glad you decided to join. Your pics are music to me eyes  8-) thanks for posting them. Thats a really neat way you have fitted the stirer shaft. Is that a hex socket I see there?? How did you fix that to the shaft? Glued onto bolt head???? Also.. would you mind telling what you have used there for the base... it looks perfect for the job.

EDITED TO ADD: Looking at it again,.. I can see the hex socket is not fitted to a head of a bolt, but to the threaded part... hmm..glued on thread makes good grip to fix well yaaar?

[facedanzr]

Re: Please help me build my new roaster.

I had to join this forum after reading your post. Ive actually got the exact same TO and I started my project with the same goals in mind. That is, compact, portable and cheap. I used an windshield viper engine from the local scrap heap. Im worried about rpm count though. I haven t tried it yet, but Im expecting some greens this Friday, so I guess well see then.

Im looking forward to seeing your progress.

[Remy]

Re: Please help me build my new roaster.

Did I hear someone say.... and its pretty easy to gear them down to operate within a useful speed range?.....

OK BBQ rotisserie motor is out,.. even with four stiring arms ....waay too slow.. but no real surprise there. Packed it back in box and might use it to roast chickens on the BBQ one day phrrrrt!.

Now for the next motor.... my bargain $2 Air Care Machine :  It looks way too fast,.. I knew that when I bought it,.. but was hoping I could reduce the speed somehow. Anyone got any ideas?  I know one stirring arm would obviously be slower than say four,..but for balance.. I will need to put two. (it didnt like just the one arm I stuck on it today)

Also,. it appears that the fan blade is fixed onto the shaft in such a way that it cant be taken off without basically breaking it off. So there will be no fan to help keep things cool

The Turbo 3000 unit arrived today and although I havent turned it on yet,.. it looks like it will do the job nicely.  Fits one of my frypans very well (though its an expensive frypan and hubby would crack if I drilled a hole in it,lol),.so now that I finally have a diameter measurment, I can start shopping for the frypan. It will only need the shallowness of a frypan too just looking at it,.. because once the extension ring sits on top,.. itll be plenty deep enough to contain any escapee beans.

[Dimal]

Re: Please help me build my new roaster.

sewing machine motors run about 6000rpm full voltage so are pretty inefficient at slow speeds. Bread machines are about 200rpm with good torque. I used one with my first BM/CO roaster. Then I bought a speed control motor made by Oriental motor used on ebay. My WWW/Blog site has pictures.
farm

Yep, thats right farmroast..... Most of these motors come fitted with a reasonably decent pulley fitted to them though and its pretty easy to gear them down to operate within a useful speed range,

Mal.

[Remy]

Re: Please help me build my new roaster.

I dont think a drill would cope going continuously for 16 or 17 mins especially that close to something as hot at this pan will get.  

There is a guy who has a "Soup Can Roaster" that uses a drill connected to a soup can (this has been posted on CS before). See  the following link and you will also see links to his videos using the drill http://www.angelfire.com/pro2/panroa...offee/scr.htmlIt works fine, the heat doesnt affect it.. It doesnt need to be on high speed.

Thanks CK.. Ill have a look.

[farmroast]

Re: Please help me build my new roaster.

sewing machine motors run about 6000rpm full voltage so are pretty inefficient at slow speeds. Bread machines are about 200rpm with good torque. I used one with my first BM/CO roaster. Then I bought a speed control motor made by Oriental motor used on ebay. My WWW/Blog site has pictures.
farm

Re: Please help me build my new roaster.

I dont think a drill would cope going continuously for 16 or 17 mins especially that close to something as hot at this pan will get.  

There is a guy who has a "Soup Can Roaster" that uses a drill connected to a soup can (this has been posted on CS before). See  the following link and you will also see links to his videos using the drill http://www.angelfire.com/pro2/panroa...offee/scr.htmlIt works fine, the heat doesnt affect it.. It doesnt need to be on high speed.

[Remy]

Re: Please help me build my new roaster.

Ok does anyone know what rpm BMs run at?

Hmmmm...the 30yr old sewing machine sitting upstairs gathering dust is starting to look appealing to my eye all of a sudden.

Hmmm, how about that? I was about to suggest that it might be worth while checking out some older sewing machines ;D..... Have used the motors from these for many interesting projects over the years 8-),

Mal.

Yeah... I reckon one of these motors would be ideal actually.(and you could amuse yourself during the roasts by playing with the pedal to adjust the speed of the stirers....erm...just because you can : ) I eyeballed another old machine this morning in the recycle/reuse joint,.. but it looked like it was a better machine than mine at home.. wasnt game to ask how much.

I hesitate killing my machine,.. I suppose because its never had a service in all the 30yrs(apart from me opening it up to clean, re-oil and make and fit a new spring (old one lost its mojo)so the feeder dogs will work again, just a few months ago when one of my daughters decided she suddenly needed to make some clothes. Old faithful,..it would be cruel to harvest its motor for bigger and better things as much as I would like to ;D. My daughters might be slightly annoyed.

[Dimal]

Re: Please help me build my new roaster.

Ok does anyone know what rpm BMs run at?

Hmmmm...the 30yr old sewing machine sitting upstairs gathering dust is starting to look appealing to my eye all of a sudden.

Hmmm, how about that? I was about to suggest that it might be worth while checking out some older sewing machines ;D..... Have used the motors from these for many interesting projects over the years 8-),

Mal.

[Remy]

Re: Please help me build my new roaster.

This may be completely stupid - but why not attach a paddle to a drill or motorised screwdriver that allows some control over rotating speed and stick it through the base of a non glass dish of some sort - I may be going completely down the wrong track for your requirements but I reckon youd get a cheap second hand drill from a garage sale that you could convert pretty easily.

It probably could work, but I didnt go that way because I think the main problem would be heat issues.  I dont think a drill would cope going continuously for 16 or 17 mins especially that close to something as hot at this pan will get.

I guess there could be work-arounds and of course I could get a little fan and point it at the drill to help it stay cooler etc...and house it in a heat proof box..... but there it is right there another reason why I didnt go that way.  I think it would be too much mucking around (for me anyway) just to take care of the drill under these conditions, and the setup will likely end up being too bitsy and time consuming(again...for me)to have to setup and pack away.

The main criteria for my setup... right after being able to do great roasts,... is.. neatness/compactness,. a single unit, a single action,.. plonk-on-bench-and-roast type setup. Roast on the run...thats what I wanna be able to do.

Someones bound to think,.that what Im doing at the moment is too much mucking around and I would definitely agree, it is a lot of mucking around!!.. but this mucking around is following my criteria.  (I dont necessarily mean small,.because the TH is sizable I think,.. but it all has to fit together perfectly and be a neat setup).

With the two motors I already have to play around with,.. the BBQ rotisserie motor can already withstand high heat,..tried and tested  ;D and it is also very small and flat (would benefit with a heat barrier)....... and the other one,.. hmmmm well it is neatly housed already..with nice switch... has internal fan (assuming I can/should leave it on that is, and still be able to attach an extension rod and stirers), but will still need a heat barrier between it and the pot.

[nmcampbell]

Re: Please help me build my new roaster.

This may be completely stupid - but why not attach a paddle to a drill or motorised screwdriver that allows some control over rotating speed and stick it through the base of a non glass dish of some sort - I may be going completely down the wrong track for your requirements but I reckon youd get a cheap second hand drill from a garage sale that you could convert pretty easily.

[Remy]

Re: Please help me build my new roaster.

Remy
If you only have a BBQ rotis motor and you are concerned that the speed is slow you only need to add another  stiring arm to the agitator
a total of 4 contact points that will in effect double the agitating contact with the beans? well I think it should
KK

Yeah.. that makes sense,..I was thinking of it by how quickly the barrel turns with it.  It would be the same speed if I only planned to have one stiring arm,..but planned to have four so hmmmm.

Ok,.. this morning however,.. I went motor shopping , at the local recycle/reusue place and found this......(well actually I was looking for BMs or Fans and there was none so was heading out the door and my mother found this..)

Seems like a solid little motor,.. could maybe leave the fan on to keep the motor cool,... or maybe that wont work/be necessary. Was thinking to use it in its housing as in right pic.

So now I have two motors to choose from. Oh..and this one cost me *gasp* $2  ;D