Green Coffee Buying Club

Coffee Discussion boards => Hardware & Equipment => Topic started by: Tex on January 22, 2009, 11:14:19 AM

Title: After two batches roasted - Thoughts on modding the Sonofresco;
Post by: Tex on January 22, 2009, 11:14:19 AM

• Use a two-timer relay to control the frequency & duration of the time the burner is on.
• Use a variac to control the blower speed.
• PID controller to do a better job of determining the roast temp?
• Replace the RTD in the exhaust flow with a thermocouple probe in the bean mass.

These would eliminate the roast profiles function of the current electronics. The timer relay & PID could provide even greater fine-tuning (

almost infinitely tunable) of roast profiles - they just wouldn't be programmable.

Title: Re: After two batches roasted - Thoughts on modding the Sonofresco;
Post by: mp on January 23, 2009, 09:36:42 AM

Hmm ... maybe you and Milo should team up.

 ;)