Posted Mon Oct 28, 2013, 5:06am Subject: Re: Macap MX not grinding
OK so I think I may have actually figured out the problem here. This morning I attempted to grind with a full hopper to see if weighing the beans down would help. Nope.. Then I removed the hopper and tamped the beans into the burrs.. Still nothing. I was ready to give up and ditch the grinder all together and go back to using the Skerton. As I cleaned out the remaining coffee I dialed back the collar about a full number and purged out the last of the coffee. As I went to dump the grounds into the garbage I noticed it was fine enough to pinch with my fingers. That's when it hit me..
The stepped Macap MXP's adjustment pin sits vertical pushing up on the collar. Since this was removed during the mod the mm or two of space caused by that pin isn't there anymore. So when I dialed in the same spot as when the grinder was stepped the burrs were actually too close together. So I went back, dialed to 0 and to maybe 1/8 of a full turn. I was able to grind no problem. :) Due to lack of time I overdosed and tried to pull a shot. Got a beautiful shot like in my avatar. :) Now to see if I can single dose again.
Posted Wed Jan 29, 2014, 10:29am Subject: Re: Macap MX not grinding
Low and behold 3 months later I run into the same problem just finishing a .5 kg bag of Costa Rica.. I now know that this is the cause of 2 things.. Both are user error.. One.. The burrs were gross.. 2 static.. I was -20'C outside this morning and the air in the house is so dry my knuckles literally crack because of this. After 2 brush cleanings of the burrs I noticed after grinding one single dose that the burrs were loaded with grounds. The grounds were pretty loose but sticking to the burrs like crazy... STATIC.. I've only ever had this problem single dosing so I am 99% sure this is the culprit. Luckily I found a cool article that help this specific problem. :) Gonna try tonight.
Posted Thu Jan 30, 2014, 6:11am Subject: Re: Macap MX not grinding
At this point I can say it's a combo of things.. ATTN to anyone else who has this problem with any grinder. Just run rice or non popped popcorn through your grinder to clean and if your using oily beans you need to dial back your grind.
For me last night here was the problem.. - Static - Under dosing - Oily coffee beans (Vienna Roast) - Too fine a grind going from medium to dark roasted coffee.
I was using Full City beans last night and I attempted to grind the Vienna coffee at the same setting this morning after having to purge again with rice the grind choked my Silvia. I dialed back 3 full turns on the Macap worm drive and got a Longo.
So if this ever happens to anyone again just run white rice, popcorn kernels or Grindz through your grinder and your good to go. If it's been a while clean and recalibrate. If your doing what I did, moving to a darker roast remember to adjust to the grind.
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