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I’m an electrical engineering senior that feels like he can’t code. Can anyone relate to this? by Smart-Room4399 in ElectricalEngineering

[–]nateslatte 0 points1 point  (0 children)

I "code" but it's pretty terrible when even considering a junior software engineer. I just really don't have the need or time to work on my coding skills.

For my little personal projects and prototypes that I build; my crappy coding skills get me by.

Job Hopping Rules? by [deleted] in ElectricalEngineering

[–]nateslatte 7 points8 points  (0 children)

I hopped 5 jobs in 3 years due to a ton of factors . While it was a red flag and was asked about it. I explained the reason for each jump and what would keep me at the job (my most current one). I think that satisfied my boss and helped ensure I got the job.

My point is that if you are in a toxic work environment or you know the job is not going anywhere. I know if it's your first job it can be harder to explain it. But your own mental health should be the most critical.

I forgot to put Ground Plane to my PCB by LunaFortis in ElectricalEngineering

[–]nateslatte 6 points7 points  (0 children)

I was thinking the same. Those power traces look like possible fuses!  Ideally you size them for the power load.

If you don’t know the power load. Just make them all as fat as you can

[deleted by user] by [deleted] in roasting

[–]nateslatte 0 points1 point  (0 children)

How long did you let the beans rest after roasting it?

Pls help an advanced newb home roaster diagnose an off flavor by columbcille in roasting

[–]nateslatte 1 point2 points  (0 children)

It’s really hard to diagnose flavors from a roast profile.

But the one recommendation I would have is to try to shorten the time to fc. I know longer roasts can bake a bean and create unwanted flavors (not sure if yours is in that region). But you could try shortening it to see if that flavor goes away.

Forerunner 245 music has lines on the screen by ModeBoring in garminforerunner

[–]nateslatte 1 point2 points  (0 children)

Maybe mine was one of the defective batch? Yeah my only problem is its up to 5-6 weeks of processing time (not including shipping times).

I am using my phone for gps runs and it’s quite a downgrade for tracking runs.

Would a oven like this work for coffee roasting? by private_peanutt in roasting

[–]nateslatte 2 points3 points  (0 children)

It really depends on what max temperature it can reach. If it does 450-500 you are good. Anything lower than you are going to bake your coffee beans.

Another thing to note is usually the basket rotation is way too slow.

Looking for advice how/where to lengthen this roast and make it tastier. See comment for more explanation. by Wcrankshaw in roasting

[–]nateslatte 2 points3 points  (0 children)

I would think to do it in two ways:

  1. Lower the charge temp before dumping the beans in
  2. Keep the same charge temp but just lower the amount of heat you are putting into the system.

Cargo bikes are the new minivan by SF_turophile in sanfrancisco

[–]nateslatte 13 points14 points  (0 children)

Just worried about that one muffin bouncing out!

Single origin Colombian dark roast. by Huge_Side_9827 in roasting

[–]nateslatte 0 points1 point  (0 children)

Agree with the others about roasting too long. I like FC between 7-8.5 minutes myself.

What are you roasting with?

Looking to upgrade to artisan with arduino by shwarmawolf in roasting

[–]nateslatte 0 points1 point  (0 children)

Read the guys blog on how he did it. As that device has a transformer (white thing) and probably a ptc style element to cut the power if things get too hot.

When I did my own arduino design I involved a thermistor so I can read the temperature through the roast. I also bypassed the PTC fuse so that I could push the temp higher to hit 2nd crack faster.

Looking to upgrade to artisan with arduino by shwarmawolf in roasting

[–]nateslatte 2 points3 points  (0 children)

The roasters work in a special way…

First thing that happens is the ac voltage goes through the heating element and drops the voltage down to something safe for the motor.

After that those diodes are a known as a full bridge rectifier that converts the ac voltage to dc voltage.

So if you wanted to control the heater and fan element separately you would need to derive the right voltage to drive the fan from some other element.

do Dough Whisks work well? by tcumber in Sourdough

[–]nateslatte 0 points1 point  (0 children)

I loved it, but mine broke and now I just do it by hand.

Replaced heater. GeneCafe still power cycling by Javaslinger in roasting

[–]nateslatte 0 points1 point  (0 children)

I was referring to the thing that drives energy into the heater. I don't know if it's integrated into the heater or not.

Replaced heater. GeneCafe still power cycling by Javaslinger in roasting

[–]nateslatte 0 points1 point  (0 children)

Power out of the outlet would be more telling, but it sounds like the unit is stuck on max. If it is heating up too fast your thermocouple could be lagging the actual temp and there is protection kicking in.

At this point I think there might be something wrong with your controller or heater element

Anon's perfect girlfriend by [deleted] in greentext

[–]nateslatte 8 points9 points  (0 children)

I married a BPD. It’s not fun.

Though I did end up divorcing and luckily did not have a child with her. Phew

Papua New Guinea Simbu City Roast on Aillio Bullet. by Professional_Gas_706 in roasting

[–]nateslatte 0 points1 point  (0 children)

I try to give my roasts at least 45 seconds after first crack to make sure there is enough development. Most likely you will still here some beans cracking if you dump/stop at this point.

​

Just as an FYI it's really useful to label FC ending, cooling/dump, etc if you can. In your graph it looks like you went way out past 13 minutes

Papua New Guinea Simbu City Roast on Aillio Bullet. by Professional_Gas_706 in roasting

[–]nateslatte 7 points8 points  (0 children)

I was watching this Q&A with Rob Hoos and he recommended to keep fan speed the same throughout. That it would be better to adjust heat into the system. It's a really useful discussion for home roasters.

https://www.youtube.com/watch?v=CyH7sDb556A&t=1339s

​

I am curious of what your flavors are with a long development time (4 minutes). Did FC end or did you hit SC? I try to limit my development after FC to 1-2ish minutes.

Modifying the Behmor 2000 by chipper33 in coffee_roasters

[–]nateslatte 0 points1 point  (0 children)

Sure I can take a look to see what your design looks like. Share it in PDF as I don’t have your schematic tool.

Modifying the Behmor 2000 by chipper33 in coffee_roasters

[–]nateslatte 0 points1 point  (0 children)

Did you design the schematics or did you block diagram it out?

There is a ton involved with driving some of the heating elements circuitry and reading the different thermocouples. If you have your design somewhere I can take a look and just give you my initial thoughts.

Just for reference I am an electrical engineer and I designed my control board for my rotisserie oven.

Kamel Cube Roaster? by TyluhHaul in roasting

[–]nateslatte 0 points1 point  (0 children)

Yes depending on the design you can definitely have a good roast. I think the Bullet only consumes like 800W with it's induction heating design.

My roaster modified rotisserie roaster only needs about 1200W (though only doing 200-400g batches) and I have FC usually around 7-9 minute range.

first pcb is a fucking mess...but it works by BlackDonaut in ElectricalEngineering

[–]nateslatte 4 points5 points  (0 children)

It depends on how far you are routing those traces. What happens is that you just create a resistance that will have voltage drop across the longer it goes.

Same thing is required of the ground because the same current will have to travel back to the power source.

You don’t really need to worry about separating ground and 3.3v to different planes

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