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BM paddle meltdown

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  • Okiroast
    replied
    Re: BM paddle meltdown

    Smokeydeck, I found a 5/16 sleeve that slid over the shaft in the BM I cut it to length then drilled and tapped to holes that secure a stanless paddle I cut from an old bowl with my dremmel tool. The bottom screw is only long enough to hold the paddle, the top screw holds the paddle to the sleeve as well but is long enough that it extends through the sleeve and almost touches the halfmoon portion of the shaft so it will catch during operation I fit it snug because it expands and will get a little looser when the heat is added. I have JB weld and it works great, have used to patch my radiator. I just wanted the option to remove the paddle. I dropped a stainless fender washer over the shaft before putting on the paddle to protect the bushing. Anyway hope this helps................Ill try and post a picture.

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  • reubster
    replied
    Re: BM paddle meltdown

    Heres perhaps another way to secure the new paddle to the spindle.

    After removing my "push-fit" teflon covered aluminium paddle in order to remove the teflon, it kept popping off during roasts, so I needed some better way to secure it.
    Because the spindle was stainless steel, a drill and tap would not have been an easy [or cheap] domestic proposition.

    I found a great glue [via Mitre 10] that can be used with metals and plastics and its rated up to 260C.
    It s called JB Weld.....http://jbweld.net/products/jbweld.php

    I realise it is possible that the paddle temp may exceed 260C, and also in my case it [the glue is only preventing upwardsl paddle movement] but but sofar the glue has held perfectly.

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  • smokeydeck
    replied
    Re: BM paddle meltdown

    What did you end up doing? Im having the same issue with my new second hand bm. Going to replace the stirring arm and probably put a false floor in to protect the bush and plastic mechanism beneath the bucket.

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  • Okiroast
    replied
    Re: BM paddle meltdown

    Thanks for the feedback Greg. I started tweaking a little about paddle dimensions, shape etc, Dont have acess to a mill but barstock, a drill and tap may be the answer, and using a smallset screw to solve the halfmoon shaft issue. I suppose paddle shape isnt as critical as long as it is moving the beans??? Will experiment and see what happens thanks for the input.........

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  • GregWormald
    replied
    Re: BM paddle meltdown

    I reckon you could make one out of some sheet aluminium or stainless or even mild steel. Bend roughly to shape with a pair of pliers with a flat bit on the hole to stop it turning on the shaft. Id guess that its not nearly as critical as kneading bread as far as strength is concerned.
    Greg

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  • gregpullman
    replied
    Re: BM paddle meltdown

    Welcome Oki!

    I had a similar experience on my first BM roast - the paddle didnt get as hot as yours but it got hot enough to start bubbling and to sag so it was scraping on the bottom of the can. I only noticed because some beans were stuck to it! ;D Its surprising how hot it gets in there though. I ended up making another paddle from brass which works fine, except it holds the heat for so long after the roast! Not a difficult exercise if youve got access to a mill, even if you dont just a length of rectangular brass shaft would do. The only tricky part was the half-moon for the shaft, I had to make that separately and hold it in with a very small screw.

    Greg

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  • Okiroast
    started a topic BM paddle meltdown

    BM paddle meltdown

    I did my first ever roast today with a Westbend BM (41063) and Black and Decker HG. Started roasting 300g All was going well FC at 8:50 raised heat gun and roast continued nicely, but right before SC noticed beans not moving toward the outside of bread pan and roast becoming inconsistent. Stopped roasting and cooled beans only to find a large mass of black plastic and beans around the paddle driveshaft. The remains of my BM paddle???? I dont believe that I was roasting to hot, as the roast seemed to be progressing well. I have found a replacement paddle on line, but asssume it will melt as well. I could probably fabricate something from metal??? Any thoughts, experience or suggestions would be appreciated. The bug has bitten me and I need to roast soon......
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