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Author Topic: KKTO Home Build  (Read 31499 times)

Koffee Kosmo

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« Reply #50 on: 03/12/2011, 09:53 AM »
The motor will run both ways
So there is no right or wrong way to connect it

My units run anti clockwise

I also did a similar thing with my original roaster where I used a cordless phone cradle

KK
Bezzera Strega Lever: Mazzer Robur conical grinder Pullman Barista Tamper Convex:  Designer of the KKTO Home Roaster:

Blog - http://koffeekosmo.blogspot.com

Kelsey

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« Reply #51 on: 03/12/2011, 10:51 AM »
That's very clever. I like it a lot!

Will this need to use the ground terminal?

I only did it like this because I saw the plug on your KKTO. It makes for a safe, portable and compact design.
LONDINIUM I, Compak E10.

Full disclosure: I have commercial arrangements with Bezzera (AU) and Londinium Espresso. I am not required to market them on this forum & any opinions expressed are my own.

Koffee Kosmo

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« Reply #52 on: 03/12/2011, 10:58 AM »
That's very clever. I like it a lot!

Will this need to use the ground terminal?

I only did it like this because I saw the plug on your KKTO. It makes for a safe, portable and compact design.

Only if the phone cradle has one available
Otherwise No

KK
Bezzera Strega Lever: Mazzer Robur conical grinder Pullman Barista Tamper Convex:  Designer of the KKTO Home Roaster:

Blog - http://koffeekosmo.blogspot.com

Kelsey

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« Reply #53 on: 08/12/2011, 10:42 PM »
Today was fun, but a mixed bag in terms of overall success.

Having a play on Lacehim's Lusso was a revelation. My next upgrade will be a lever.

Watching the KKTO roast was great - such a simple process.

Actually building the KKTO was enormously satisfying and hanging out with Lacehim made for a fun afternoon.

However no actual beans managed to get roasted by my KKTO :(

The build went well, but there's an issue with the motor. Here's the first test:

[embed=425,349]http://www.youtube.com/watch?v=njMJ36e6QEM[/embed]

Not exactly 70rpm!
LONDINIUM I, Compak E10.

Full disclosure: I have commercial arrangements with Bezzera (AU) and Londinium Espresso. I am not required to market them on this forum & any opinions expressed are my own.

Koffee Kosmo

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KKTO Home Build
« Reply #54 on: 08/12/2011, 10:53 PM »
Make sure the agitator rotates counter-clockwise or the agitator will be cupping the beans instead of agitating

Looks nice so far and apart from a motor issue that is not your fault it should be up and running as soon as its sorted out   :thumb:

Most of the windscreen wiper motors rotate at 55/60 RPM
KK
Bezzera Strega Lever: Mazzer Robur conical grinder Pullman Barista Tamper Convex:  Designer of the KKTO Home Roaster:

Blog - http://koffeekosmo.blogspot.com

Kelsey

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« Reply #55 on: 08/12/2011, 10:57 PM »
Thanks KK!

Despite it not working yet, I'm really happy and excited about the project.

I've got the plug that connects the powersupply to the motor configurable so I can switch which leads connect to which terminals. This should ensure that it can rotate in the correct direction.
LONDINIUM I, Compak E10.

Full disclosure: I have commercial arrangements with Bezzera (AU) and Londinium Espresso. I am not required to market them on this forum & any opinions expressed are my own.

Kelsey

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« Reply #56 on: 09/12/2011, 08:14 AM »
Brand: Random cheap asian from a no-name LCD computer monitor.
Power: 12v 4.16amp

It's in good condition.

Not sure about the motor, I'll have a look when I go downstairs.
LONDINIUM I, Compak E10.

Full disclosure: I have commercial arrangements with Bezzera (AU) and Londinium Espresso. I am not required to market them on this forum & any opinions expressed are my own.

Kelsey

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« Reply #57 on: 09/12/2011, 08:56 AM »
No mention on the motor of required amps. 12v tho.

Are you still up this way today AM?
LONDINIUM I, Compak E10.

Full disclosure: I have commercial arrangements with Bezzera (AU) and Londinium Espresso. I am not required to market them on this forum & any opinions expressed are my own.

Kelsey

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« Reply #58 on: 09/12/2011, 11:42 PM »
[embed=425,349]http://www.youtube.com/watch?v=vqCqyZ-9E_E[/embed]

Success!

Had a birthday bash to go to in Bris tonight. My BIL, also attending, is a sparky. I asked him to bring his soldering iron, multimeter and curiousity.

It was a grounding problem - no issue with Michael's wiring at all.

I need to get the drive shaft aligned properly, but after that we're good to go.

LONDINIUM I, Compak E10.

Full disclosure: I have commercial arrangements with Bezzera (AU) and Londinium Espresso. I am not required to market them on this forum & any opinions expressed are my own.

Koffee Kosmo

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« Reply #59 on: 10/12/2011, 09:01 AM »
Oooh I see  progress
You will be roasting in no time Kelsey

Now you need to decide what green beans to roast first
KK
Bezzera Strega Lever: Mazzer Robur conical grinder Pullman Barista Tamper Convex:  Designer of the KKTO Home Roaster:

Blog - http://koffeekosmo.blogspot.com

Lacehim

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« Reply #60 on: 10/12/2011, 09:19 AM »
Ah there you go.  You will have to show me what you fixes :)

Kelsey buy some new bolts too.  I doubt those littles ones will be any good long term.

Happy to help with anything. :)

Koffee Kosmo

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« Reply #61 on: 10/12/2011, 09:20 AM »

peanuts  :pan

You know what, freshly roasted peanuts are sublime
And yes they can also be roasted at lower temperatures in the KKTO

KK
Bezzera Strega Lever: Mazzer Robur conical grinder Pullman Barista Tamper Convex:  Designer of the KKTO Home Roaster:

Blog - http://koffeekosmo.blogspot.com

Kelsey

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« Reply #62 on: 10/12/2011, 10:03 AM »
KK - I've pretty much decided on my list (on tapatalk right now, so a bit hard to find and repeat), it's basically the BH/UNM blend plus the simpler MyCuppa blend. And a decaf.

Looking forward to trying peanuts in there!

Lacehim, it was both simple and obtuse! You know that ground wire that was attached to the motor? My BIL simply soldered the second lead onto that wire.

Will definitely fix those bolts too!

Christmas shopping today, then KKTO building!
LONDINIUM I, Compak E10.

Full disclosure: I have commercial arrangements with Bezzera (AU) and Londinium Espresso. I am not required to market them on this forum & any opinions expressed are my own.

GaryatGala

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« Reply #63 on: 10/12/2011, 04:35 PM »
What temp for peanuts?

There's nothing like the distraction of christmas to get in the way of roasting and building projects ehh Kelsey?

I have to deal with shopping traffic just to get to work so i leave half hour early so not to stress out.

Any chance of more photos of your progress?

Cheers, Gary at G
KKTO; FZ-RR700 Baby Roaster; triple  corettos; Simonelli Oscar; Compak K3T; Rancilio Silvia and Auber PID; 2 V60s; CCD; Aeropress; home made bean cooler and a blue worker sad sack of less than 10 kg of greens.
Work: Suzuki APV van. Honda EU65i. Compak K8. Expobar Elegance Compact. Roband pie warmer.

Koffee Kosmo

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« Reply #64 on: 10/12/2011, 05:00 PM »
What temp for peanuts?

There's nothing like the distraction of Christmas to get in the way of roasting and building projects ehh Kelsey?

I have to deal with shopping traffic just to get to work so i leave half hour early so not to stress out.

Any chance of more photos of your progress?

Cheers, Gary at G

Peanuts roast best @ 160/170 deg Celsius for a slower roast but can go as high as 250 deg Celsius
One day I want to try chestnuts

KK 
Bezzera Strega Lever: Mazzer Robur conical grinder Pullman Barista Tamper Convex:  Designer of the KKTO Home Roaster:

Blog - http://koffeekosmo.blogspot.com

Kelsey

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« Reply #65 on: 10/12/2011, 05:56 PM »
I'm going to try and get some more done tomorrow and will take more photos when I do.

I've realised how critical the build of the stand is. We just knocked it up, but one really needs to ensure the everything is straight and aligned precisely - if the motor is on even a slight angle, the agitator blades 'wobble' within the pot.
LONDINIUM I, Compak E10.

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Lacehim

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« Reply #66 on: 10/12/2011, 07:48 PM »
Start with a new bit of wood for that motor, then alight it, mark it, and then drill the holes!

Told you my woodwork was dodgy, but the rest should be fine.  Trial and error with all these things.

Post up a photo of your motor wiring, would love to see how ya fixed it.

Kelsey

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« Reply #67 on: 10/12/2011, 07:57 PM »
Mine would have been worse!!

I reckon the current one just needs a minor adjustment.
LONDINIUM I, Compak E10.

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Kelsey

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« Reply #68 on: 10/12/2011, 08:52 PM »
Hopefully this works, never tried adding photos by Tapatalk before.

You can see that the brown wire that was previously attached to the motor in two places is now attached to the other wire.
LONDINIUM I, Compak E10.

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Kelsey

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« Reply #69 on: 11/12/2011, 04:57 PM »
While there was some misalignment of holes that's now been rectified I was still getting some odd lateral movement in the driveshaft.

It was hard to spot, except that the scraping noise of the blades was not constant and there was a periodic lifting of the perforated steel of the inner pot.

I wound up taking everything apart to look at just the driveshaft - still wobbled. Looked at just the drive socket - still wobbled. The drive itself... hard to say, I'm really not sure.

I'm a little stuck and have run out of time - hungry, tired grumpy boy needs attention as he has all weekend, so I'm not sure when I'll have a spare moment to try and sort this out, although I'm probably not mechanically minded enough to really do so.
LONDINIUM I, Compak E10.

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Koffee Kosmo

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« Reply #70 on: 11/12/2011, 05:31 PM »
While there was some misalignment of holes that's now been rectified I was still getting some odd lateral movement in the driveshaft.

It was hard to spot, except that the scraping noise of the blades was not constant and there was a periodic lifting of the perforated steel of the inner pot.

I wound up taking everything apart to look at just the driveshaft - still wobbled. Looked at just the drive socket - still wobbled. The drive itself... hard to say, I'm really not sure.

I'm a little stuck and have run out of time - hungry, tired grumpy boy needs attention as he has all weekend, so I'm not sure when I'll have a spare moment to try and sort this out, although I'm probably not mechanically minded enough to really do so.

The spring mod controlled this observation but a little scrapping is OK
It normally goes when beans are added and the roaster is hot

As for the socket wobble, try adding a little blue-tac inside the socket to nut coupling to keep it rigid & if that solves your problem then you can make it permanent

KK
Bezzera Strega Lever: Mazzer Robur conical grinder Pullman Barista Tamper Convex:  Designer of the KKTO Home Roaster:

Blog - http://koffeekosmo.blogspot.com

Kelsey

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« Reply #71 on: 11/12/2011, 06:35 PM »
KK< I'll give that a try, thanks.

AM, you're welcome to drop by for a look-see and a brew on Tuesday (I'm in Caloundra). I was going planning on heading up to Peregian Beach to see Michael on Tues but some matters of state have come up that's making that look unlikely..... :(


LONDINIUM I, Compak E10.

Full disclosure: I have commercial arrangements with Bezzera (AU) and Londinium Espresso. I am not required to market them on this forum & any opinions expressed are my own.

Kelsey

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« Reply #72 on: 11/12/2011, 06:38 PM »
KK, I forgot to ask - what's the tolerance for space under the agitator blades?
LONDINIUM I, Compak E10.

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Koffee Kosmo

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« Reply #73 on: 11/12/2011, 07:16 PM »
Kelsey you can do a spring mod if you have the tools
See drawing I just did for you

We have the springs in the KK shop or you can go and source some at a hardware shop

KK
Bezzera Strega Lever: Mazzer Robur conical grinder Pullman Barista Tamper Convex:  Designer of the KKTO Home Roaster:

Blog - http://koffeekosmo.blogspot.com

borat123

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« Reply #74 on: 11/12/2011, 09:11 PM »

And here's some pics of the mod I did a while back, before I upgraded to a double agitator.









cheers :)

Bezzera

 

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