RoastLogger with USB & webcam input

Roasters and roasting

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Postby greencardigan » Tue Jan 28, 2014 2:24 pm

The heater is probably ok at 5% increments but the fan isn't for my air roasters.

For example, my smaller air roaster uses a vacuum cleaner blower and I start the roast with the fan at about 22% and then slowly reduce it to about 12% during the roast.

I can still control the fan in 1% increments from my TC4 but I won't be able to do it remotely as I usually connect to the TC4 via bluetooth.
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Postby GreenBean » Tue Jan 28, 2014 3:20 pm

I see the problem that air roasters require greater precision in fan control than drum roasters.

If 5% increments are too large to provide adequate control you could map the RoastLogger fan settings of 0% to 100% in your TC4 sketch to represent the range of control that you require. For example you could map 0% to 0% and 100% to 100% so you can turn the fan full on or off and then map the remaining values to the range of 8% to 25% on your fan.

Rather than cluttering this thread with detailed discussions about this can I suggest you email me (email address included in the RoastLogger website feedback section) if you want to discuss this further.
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Izzo Alex Duetto | Gaggia XD 2 Group | Mazzer Super Jolly | La Cimbali Max | Solis 166 | Dalian 1 kg roaster | Hottop P | Hottop B | French Press (several) | Kettle modded, no really, added digital thermometer |
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A minor update to RoastLogger is available.

Postby GreenBean » Wed Jan 29, 2014 6:42 pm

A minor update to the RoastLogger to version 2.0.7 is available. This update removes the experimental status from the PID included in the Arduino Controller, increases the the number of segments in the PID setpoint table to 30, adds Slovak language localisation and updates the help file and other documentation.

A number of users have been experimenting with the PID included in the Arduino Controller and are reporting that they find it "works very well with excellent repeatability" (see previous posts in this thread for some examples). In view of this I have decided to remove the experimental status from the PID and make it a permanent addition to the RoastLogger. The RoastLogger website notes on using the PID have been updated to reflect this and to include further information on using the PID setpoint table.

Many thanks to Fredy Frisch for providing the Slovak translation using the Language Editor distributed with the RoastLogger (to use the language editor run the RoastLogger-LanguageEditor.jar included in the RoastLogger distribution). The following examples show the chart tab and a portion of the main menu:
[imghttp://roastlogger.co.uk/coffee/smilestore/sk-chart.png[/img]
Image

For further information on the changes in this version please see the following version information and the RoastLogger website.

If you are currently using version 2.0.6 then you can update simply by selecting menu > Help > Update RoastLogger. If you are currently using an earlier version of RoastLogger you can update manually or download RoastLogger-Updater.jar separately, drop it into your existing RoastLogger installation (alongside RoastLogger.jar) and double click it to run the updater.

Version 2.0.7 26/1/2014:

Arduino Controller PID:

    Removed the experimental status from the PID included in the Arduino Controller as some users are reporting that they find it provides good control of their roaster. For Hottops and other roasters that respond very slowly to changes in heater settings and where a fixed weight of beans can be used for each roast, I recommend using the action tables for control rather than the PID. The PID is more useful for roasters that respond relatively quickly to changes in heater settings or where the weight of beans used for each roast must be varied.

    Increased the number of segments (rows in table) for the PID setpoint table to 30 which is in line with the documentation. I had thought that 20 rows was more than anyone would ever use but one user has requested more.
Language localisation:

    Added Slovak language to the RoastLogger. Many thanks to Fredy Frisch for providing the translation (using the Language Editor distributed with the RoastLogger).
Documentation:

    Updated the RoastLogger website notes on using the PID to include more information on using the PID setpoint table.

    Updated the help file to include the current menu options and the PID.

    Updated the readme files included in the distribution.
Image

Izzo Alex Duetto | Gaggia XD 2 Group | Mazzer Super Jolly | La Cimbali Max | Solis 166 | Dalian 1 kg roaster | Hottop P | Hottop B | French Press (several) | Kettle modded, no really, added digital thermometer |
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TC4, TC4C and HTRI boards back in production

Postby GreenBean » Thu Feb 06, 2014 5:01 pm

I am delighted to say that JimG (MLG Properties) is back in production of limited quantities of the Hottop Roaster Interface and TC4/C boards and is taking orders via his website.

As Jim is back in production of these boards I have no plans to build further batches of RL-HT-CTRL boards. All those who have registered an interest in obtaining a RL-HT-CTRL board have been advised by email that they can now order an HTRI board.

The information on the RL-HT-CTRL board will be maintained as a reference for those who have obtained a board. All the information on the RL-HT-CTRL boards will be made available to JimG for him to consider if he wishes to incorporate this in the future development of the HTRI boards.
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Izzo Alex Duetto | Gaggia XD 2 Group | Mazzer Super Jolly | La Cimbali Max | Solis 166 | Dalian 1 kg roaster | Hottop P | Hottop B | French Press (several) | Kettle modded, no really, added digital thermometer |
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RE: TC4, TC4C and HTRI boards back in production

Postby silron1 » Thu Feb 06, 2014 11:07 pm

That's very good news indeed.

I wish Jim well & am very pleased to recommend him as a source of the Boards once again.

Ron
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A minor update to RoastLogger is available.

Postby GreenBean » Mon Feb 10, 2014 8:57 am

A further minor update to the RoastLogger to version 2.0.8 is available. This is a documentation update including a rewrite of the help contents bringing it up to date with all recent additions to the RoastLogger and providing as nested structure of help topics. The look of both the Help contents and the RoastLogger website have also been updated to more closely match each other and to use the RoastLogger logo previously included in the chart tab.

For further information on the changes in this version please see the following version information and the RoastLogger website.

If you are currently using version 2.0.6 or above then you can update simply by selecting menu > Help > Update RoastLogger. If you are currently using an earlier version of RoastLogger you can update manually or download RoastLogger-Updater.jar separately, drop it into your existing RoastLogger installation (alongside RoastLogger.jar) and double click it to run the updater.

Version 2.0.8 10/2/2014:

Help Contents:
    Updated the look of the RoastLogger help contents to match the new look of the RoastLogger website.
    Topics rearranged into nested structure.
    New topics added covering the editable labels, the Arduino Controller action tables and menu, updating the RoastLogger and various other items.
Other:
    Changed the splash screen on RoastLogger startup.
    Changed default size of Arduino Controller used on a new installation.
Image

Izzo Alex Duetto | Gaggia XD 2 Group | Mazzer Super Jolly | La Cimbali Max | Solis 166 | Dalian 1 kg roaster | Hottop P | Hottop B | French Press (several) | Kettle modded, no really, added digital thermometer |
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RoastLogger controlling a gas drum roaster.

Postby GreenBean » Thu Feb 20, 2014 11:56 am

Homeroasters.org member, allenb, has been experimenting with using RoastLoggers action tables to control his very impressive home made gas heated drum roaster. 8)

He states "I'm currently using a TC4C and Roastlogger to run my gas easydrum. Works great!" and "I'm amazed at how easy it is to program events to follow a predetermined profile once you know what power levels are needed to achieve a given rate of rise at the different phases of a roast. It can be easily tweaked by adjusting this or that event button if you want to change the slope of a certain part of a curve."
Image

Izzo Alex Duetto | Gaggia XD 2 Group | Mazzer Super Jolly | La Cimbali Max | Solis 166 | Dalian 1 kg roaster | Hottop P | Hottop B | French Press (several) | Kettle modded, no really, added digital thermometer |
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A minor update to RoastLogger is available

Postby GreenBean » Wed Feb 26, 2014 7:29 pm

A further minor update to the RoastLogger to version 2.0.9 is available. This update corrects two very minor issues and adds new serial commands to the RoastLogger to advise an Arduino/TC4C of the temperature units the user has selected in the "Set chart axes" dialog. The relevant sketches do not currently use these commands but may be updated in future to output temperatures in the users selected choice of units.

For further information please see the following version information and the RoastLogger website.

If you are currently using version 2.0.6 or above then you can update simply by selecting menu > Help > Update RoastLogger. If you are currently using an earlier version of RoastLogger you can update manually or download RoastLogger-Updater.jar separately, drop it into your existing RoastLogger installation (alongside RoastLogger.jar) and double click it to run the updater.

Version 2.0.9 24/2/2014

    Added serial commands to allow automatic temperature units selection, based on users chart axis selection, when communicating via RS232 Serial. Previously automatic temperature units selection was only available when using USB HID communication. The Arduino Controller now sends command TempC or TempF on serial communication start to indicate the users current chart axis selection. Please note that the relevant sketches for the Arduino/TC4C have not yet been updated to take advantage of this.

    The Arduino Controller show/hide button is now disabled on startup and is only enabled when the Arduino Controller is running.

    Corrected two menu item tooltips that were attached to the wrong menu items.
Image

Izzo Alex Duetto | Gaggia XD 2 Group | Mazzer Super Jolly | La Cimbali Max | Solis 166 | Dalian 1 kg roaster | Hottop P | Hottop B | French Press (several) | Kettle modded, no really, added digital thermometer |
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PEEK thermocouple fittings in use

Postby GreenBean » Sun Mar 16, 2014 2:19 pm

The PEEK thermocouple fittings, proposed to solve the problems of thermocouple installation in a Hottop roaster, have now been fitted into a Hottop B-2K roaster. The PEEK fittings have been in use for 12 roasts over four weeks and are performing well so far. The advantages of these fittings are:

1. They provide good thermal insulation ensuring accurate temperature measurement despite the limited protrusion available into the roast chamber.

2. They provide good electrical insulation allowing the use of easily available grounded thermocouples without ground loop problems.

3. PEEK is suitable for continuous use at 250 C (480 F) with no known health issues.

4. PEEK is easy to machine to make suitable fittings.

The suitability of the PEEK material for bonding with J B Weld was the only real concern over the use of these fittings. So far they are holding up well.

Thermocouples with 3 mm diameter stainless steel sheaths were chosen as they provide a good compromise between speed of response and smooth output. The thermocouples used in this case are Omega HTTC12-K-18G-1.5-GG. These are grounded probes with a 40 mm long stainless steel sheath but the sheath has been found to be a little too short and 50 - 60 mm long is suggested. If you plan to use similar thermocouples please measure your roaster carefully before ordering.

For details and discussion of the PEEK fittings see the TMC RoastLogger thread pages 17 and 18 (posts between Apr 04, 2013 - 03:13 PM and Apr 09, 2013 - 11:54 AM) and the following photos:

Peek fittings used:
Image

Thermocouples used:
Image

PEEK fittings viewed from rear of roaster:
Image

PEEK fittings viewed from roast chamber:
Image
Image

Izzo Alex Duetto | Gaggia XD 2 Group | Mazzer Super Jolly | La Cimbali Max | Solis 166 | Dalian 1 kg roaster | Hottop P | Hottop B | French Press (several) | Kettle modded, no really, added digital thermometer |
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Advice note re. Hottop controller issue.

Postby GreenBean » Fri Apr 04, 2014 5:19 pm

The following advice note is being issued jointly by JimG and myself and describes a very rare occurrence.  If you have experienced the issue described in the advice note on your roaster, or you are concerned that this issue may affect your roaster, please email the supplier of your board to obtain a plug in replacement 20-pin CPU chip with the revised firmware.  


Advice on an issue affecting a small number of Hottop roasters fitted with HTRI boards**

Description of the issue:

1.  On a small number of B-2K roaster fitted with HTRI boards** pressing eject can result in the Hottop shutting down (control panel reset) without ejecting the beans or cooling.  This has only been observed on 2 B-2K roasters and only in the following very specific circumstances when all of the following apply:

1. Preheat has been completed.
2. The roaster is being externally controlled i.e. connected to a computer via a USB cable.
3. The external control program (RoastLogger, Artisan or other control software) has the fan set to 0%
4. Eject is pressed when all of the above apply

Cause:

Investigation of the issue has highlighted that the inrush current when the rear and cooling fans are started is close to the tripping current of the Hottop 12V DC power supply.  With certain roasters and, in particular, certain fans, the inrush current can be sufficient to trip the power supply which temporarily shuts down the roaster and resets the control panel.

Workaround:

It is recommended that the fan is always set on 30% or above at the end of a roast before pressing eject.  In testing this issue is resolved if the external controlling program has the fan set on 25% or above when eject is pressed (as the fans are already spinning this limits the inrush current).  Most roasters would always have the fan on towards the end of the roast to clear the increasing smoke as the roast nears completion.  

Hottop models affected:

This issue has only been reported by one B-2K user and, in controlled testing, reproduced on one other roaster when fitted with either B-2K or P-2K control boards.  In testing we have not been able to reproduce this behaviour on a Hottop B or P roaster.  Whilst the problem has not been reported, or experienced in testing, on roasters other than the B-2K and P-2K, it may occur on some other roasters especially if the fans have a higher inrush current than the average.  

As most users would always have the fan on towards the end of the roast they may not have experienced this issue even though their roaster is susceptible to it.

Solution:

As of 1-April-2014, firmware used on the HTRI boards** has been updated to provide a soft start to the fans when eject is pressed.  This avoids the problem by greatly reducing the inrush current to the fan at eject.  If your HTRI board** was shipped to you after 1-April-2014 then it already has the updated firmware. 
 
A plug-in replacement 20-pin CPU chip with the revised firmware is available to any user of an HTRI board** who has experienced this problem on their Hottop roaster, or is concerned that their roasting practices may make their roaster susceptible to this problem.  Please contact JimG or GreenBean to arrange for a free CPU replacement chip (you may be asked to pay postage).
 
Please note that the only new feature included in the updated  CPU chip is the soft starting of the fan upon pressing the eject button.


** HTRI boards can be HTC+TC4C, HTShield+TC4 or RL-HT-CTRL 

This advice note is issued jointly by JimG (Supplier of TC4C+HTC and TC4+HTShield boards) and GreenBean (supplier of RL-HT-CTRL boards).
Image

Izzo Alex Duetto | Gaggia XD 2 Group | Mazzer Super Jolly | La Cimbali Max | Solis 166 | Dalian 1 kg roaster | Hottop P | Hottop B | French Press (several) | Kettle modded, no really, added digital thermometer |
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An important update to the RoastLogger is available.

Postby GreenBean » Wed Apr 09, 2014 2:02 pm

A further update to the RoastLogger to version 2.1.0 is available to download. This is an important update for all users controlling a Hottop roaster via any HTRI board**. It is strongly recommended that users of any of these boards update to this version and use it, or future versions, for all future roasts.

The update provides a new Arduino Controller menu option to provide a soft start to the fan. This option is on by default
and limits increases in fan settings to a maximum of 25% per second until the fan is on 50% or more when any increase is accepted. The fan slider moves to the new user setting instantly but increases in fan setting in excess of 25% are applied in steps. Users of HTRI boards** should leave this fan soft start menu option checked unless they are certain their Hottop is not affected by the issues described below.  Users controlling roasters other than a Hottop can uncheck the fan soft start if they wish.

Reason for the update:

The previous post dated Apr 04, 2014 - 06:19 PM includes an advice note covering an issue affecting a small number of Hottop roasters fitted with HTRI boards** where pressing eject on the control panel (which results in both fans being turned to 100%) can result in the Hottop shutting down unexpectedly.

Further to this advice note being issued there has been one anecdotal report of similar fan-related roaster shutdowns occurring mid-roast when the user made a step change increase in fan output level from 0% to 40%. In this case the user was not using RoastLogger but there is no reason to believe the outcome would have been different if he had been using RoastLogger. The user reports observing this on at least 3 occasions, but resolved the issue by always starting the fan at a low output level at the end of preheat.

This seems to be a rare occurrence affecting a small number of roasters. The soft start of the fan, included in this update, is intended to reduce the possibility of this issue occurring even on susceptible roasters.

Need to update both the HTRI board** firmware and RoastLogger to version 2.1.0:

The issues described in this post and the previous post/advice note both relate to step increases in fan setting causing overload/shutdown of the Hottop 12 volt DC power supply. Unfortunately, to minimise the chance of these affecting a roaster, it is necessary to implement both solutions.

The firmware revision described in the previous post and advice note can only address the conditions at eject. The update to the RoastLogger to version 2.1.0 to provide a soft start to the fan can only affect the fan settings before eject.

If you are currently using version 2.0.6 or above then you can update simply by selecting menu > Help > Update RoastLogger. For further information including other changes in this update see the following version information:

Version 2.1.0 8/4/2014

Arduino Controller:

    Added a menu option, on by default, to provide a soft start and soft increase to the fan speed.  Anyone controlling a Hottop roaster via a HTRI board** should update to this version and leave this menu item selected.  A soft start or soft increase is applied when this menu item is selected and the current fan setting is less than 50%.  When these conditions are met increases in fan speed settings are limited to a maximum of 25% per second.  The fan slider moves instantly to the users setting but that setting is applied in steps increasing by a maximum of 25% per second.   

    Changed the fan and heater sliders used in Windows and Linux to provide an action similar to OS X. Now in all operating systems clicking the mouse anywhere on the slider track causes the slider thumb to jump to that location allowing any setting to be selected with one mouse click. Previously the default Windows and Linux sliders were used which only move the slider thumb 10% towards the mouse cursor location.

    Changed the tooltip associated with the "Connect to USB HID device" check box to clarify how it should be set for various devices.


** HTRI boards can be HTC+TC4C, HTShield+TC4 or RL-HT-CTRL
Image

Izzo Alex Duetto | Gaggia XD 2 Group | Mazzer Super Jolly | La Cimbali Max | Solis 166 | Dalian 1 kg roaster | Hottop P | Hottop B | French Press (several) | Kettle modded, no really, added digital thermometer |
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Advice note on HTRI board issue and update to RoastLoggerTC4

Postby GreenBean » Fri Apr 11, 2014 9:27 am

All HTRI board** users should read the important advice note on the RoastLogger website. The advice note covers the issues described in the two previous posts (dated Apr 4, 2014 and Apr 9, 2014) and the solutions.

As part of the solution JimG has updated the RoastLoggerTC4 sketch to version 3.0. The update provides a soft start for the fan, independent of RoastLogger, which is required when RoastLogger is not being used to control the roast. The updated version is available to download from the RoastLogger downloads page and Jim's HTRI webpage. The circumstances in which users are advised to update to this version are described in the advice note. The update also implements runtime selection of temperature scale, C or F, depending on the users current chart axis selection in RoastLogger.

** HTRI boards can be HTC+TC4C, HTShield+TC4 or RL-HT-CTRL
Image

Izzo Alex Duetto | Gaggia XD 2 Group | Mazzer Super Jolly | La Cimbali Max | Solis 166 | Dalian 1 kg roaster | Hottop P | Hottop B | French Press (several) | Kettle modded, no really, added digital thermometer |
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A RoastLogger update is available.

Postby GreenBean » Wed Apr 23, 2014 1:35 pm

A further update to the RoastLogger to version 2.1.1 is available to download. This update includes a significant enhancement to the functionality of the Arduino Controller and other minor changes.

Heater and Fan control in 1% steps is now provided via a new Arduino Controller menu option. By default everything works as in previous version of RoastLogger with the sliders limited to 5% steps. When the new menu option is selected the sliders move in 1% steps which allows the action tables and PID to adjust the heater and fan settings in 1% steps.

A problem with the implementation of the PID included in the Arduino Controller was identified by JimG. This is now fixed and the PID provides much better control of a roast (thanks Jim :D). The following chart shows the comparison between a Hottop roast controlled by the action tables (shown as the template in pastel colours) and a roast controlled by the PID (shown as the current roast bold colours). Both of these roasts are without any human intervention except to mark the roast stages by pressing the roast stage button. The left chart title indicates the PID settings used which are very simple.

Personally, I still find the action tables produce slightly better results and they are easier to setup and use. Anyone living in an area where mains voltage variations are significant will probably get better results with the PID.

I have added some notes to the PID page of the RoastLogger website on setting up the RoastLogger PID to control a roast in this way.

Image

For further information on the above and other changes in this update see the following version information:

Version 2.1.1 23/4/2014:

Arduino Controller:
    Fixed an issue with the implementation of the PID included in RoastLogger. It now produces much better control of a roast.

    Enabled heater and fan control in one percent steps rather than the previous 5% steps. Added a menu option to switch the heater and fan slider granularity between the default 5% and 1% steps. In the default state everything works as with previous versions of RoastLogger. When the granularity is set to 1% the sliders can be moved in 1% steps and the action tables and PID can control in 1% steps. The left/right cursor keys move the sliders in 1% steps and the up/down cursor keys move the sliders in 5% steps for faster traversal. As with the previous version clicking the mouse over the heater or fan slider track causes the thumb to jump directly to the cursor location.

    Removed the PID autotuner as it has been found that it is not really suitable to find appropriate settings for a coffee roaster.

    Enabled on the fly changes in the PID tuning parameters during a roast.
Other:
    Added a menu option to change the elapsed time displays to include the time after first crack start in square brackets.

    Help file updated to reflect the above.
Image

Izzo Alex Duetto | Gaggia XD 2 Group | Mazzer Super Jolly | La Cimbali Max | Solis 166 | Dalian 1 kg roaster | Hottop P | Hottop B | French Press (several) | Kettle modded, no really, added digital thermometer |
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A further update to RoastLogger is available.

Postby GreenBean » Thu May 01, 2014 1:56 pm

A further update of RoastLogger to version 2.1.2 is available. This update provides significant enhancement to the Arduino Controller functionality by adding a new method to control the PID settings during a roast. Previously setpoints could be adjusted based on elapsed time via the setpoint table. Now, in addition to this, PID settings (setpoints, setpoint ramps and PID tuning parameters) can be set via the main action tables (Action at T1 and Action at secs. after FC). Controlling the PID via the action tables provides the ability to adjust settings based on bean temperature before first crack and elapsed time after first crack. Users can choose to control any roast via the setpoint table or the action tables via the new PID commands.

The new commands allow a great deal of flexibility in the use of the PID. The RoastLogger website PID page has been updated with more details of the controls and how to use them. The following is a very brief summary of some key points:

The new PID setting commands can be entered into the heater column of the action tables. If the PID is turned off then any PID commands are ignored and any heater settings are applied. If the PID is turned on then any heater settings are ignored and, if the "Use PID commands in action tables" is selected, then any PID commands are applied.

The new PID commands are:

Image

The PID settings dialog has been updated to include the new PID settings table and to allow the setting of initial PID settings that will be applied whenever a PID controlled roast is started.
Image
As you can see from the above image the PID settings table allows you to define a series of PID settings to be applied when the relevant "P" number is found in the action tables heater column. Blank rows and cells have no action leaving the relevant setting at previous values. Each "P" number can be entered in the action tables any number of times.

There are both advantages and disadvantages to controlling the PID via the action tables. The main advantage is that bean temperature is a much better indicator of the current roast stage than elapsed time. This means that better control and repeatability is provided by using the action tables. The main disadvantage is that you need to be careful with the settings to ensure that the bean temperature continues rising. If not then any further settings, set to activate at higher bean temperature, can not be triggered.

I would be very grateful for feedback from anyone who tries these PID controls.

For further information on other changes in this update please see the following version information and the RoastLogger website.

Version 2.1.2 1/5/2014

    Enhanced the Arduino Controller functionality by adding a new method to control the PID settings during a roast. Previously setpoints could be adjusted based on elapsed time via the setpoint table. Now, in addition to this, PID settings (setpoints, setpoint ramps and PID tuning parameters) can be adjusted via the main action tables (Action at T1 and Action at secs. after FC). Controlling the PID via the action tables provides the ability to adjust settings based on bean temperature before first crack and elapsed time after first crack. Users can choose to control any roast via the setpoint table or the action tables via the new PID commands.

    Modified the code that manages the PID setpoint table to be compatible with the above and to make it more robust.

    Changed the logic used on closing RoastLogger if the current roast log has not been saved.

    Updated the help file contents in accordance with the above.
Image

Izzo Alex Duetto | Gaggia XD 2 Group | Mazzer Super Jolly | La Cimbali Max | Solis 166 | Dalian 1 kg roaster | Hottop P | Hottop B | French Press (several) | Kettle modded, no really, added digital thermometer |
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A further update to RoastLogger is available.

Postby GreenBean » Wed May 28, 2014 8:21 am

A further update to the RoastLogger to version 2.1.3 25/5/2014 is available. This update involves a rewrite of the chart rendering. The new chart rendering improves the appearance of all chart curves at all times and includes new options to provide white borders around the main chart curves and drop shadows for the T1 and T2 curves. These new options are off by default as they necessarily take up more space on the chart and can produce excessive clutter. It is suggested that users experiment with these to determine what works best for them. The options can be turned on and off at any time including during a roast.

Example chart with white borders and drop shadows (reduced to 800 pixels wide):
Image

For further information on the changes in this update please see the following version information and the RoastLogger website.

Version 2.1.3 25/5/2014

    Rewritten the chart line rendering to improve the appearance of all lines in the chart.

    Added a menu option, off by default, to add white borders around the main chart curves (current roast and template roast). This is intended to make the curves stand out more when they overlay the roast phase bands.

    Added a menu option, off by default, to add drop shadows to the main, current roast T1 and T2 curves. A few users have requested this and it can add a nice decoration if only the current roast curves are shown. This can, however, cause excessive clutter on the chart when a template is also loaded.

    Fixed minor bug on loading a template that could result in the template RoR curve loading over a previous loaded RoR curve. Now always clears any previous template RoR curve before loading a new template.
Image

Izzo Alex Duetto | Gaggia XD 2 Group | Mazzer Super Jolly | La Cimbali Max | Solis 166 | Dalian 1 kg roaster | Hottop P | Hottop B | French Press (several) | Kettle modded, no really, added digital thermometer |
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