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Shop: PhytoExtractum Maeng Da Thai Kratom Leaf Powder   North Spore Bulk Substrate, Injection Grain Bag   Mushroom-Hut Liquid Cultures

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Invisibletramalot
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Re: Presto mod to control burner, keeping 15psi... [Re: tedoro] * 1
    #26430762 - 01/13/20 07:05 AM (4 years, 16 days ago)

This is bare minimum imo. Ramp control
"Runaway" means you go look for your dog and at best you come back to a dry pot...


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Invisibletramalot
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Re: Presto mod to control burner, keeping 15psi... [Re: tramalot]
    #26430811 - 01/13/20 08:14 AM (4 years, 16 days ago)

Any of those cheap 1500w cast iron solid plate burners $30+ may work (longevity) if you set your ramps correctly. The weak spot of the cheap ones is the gauge of the internal and external wiring and the thermostatic control itself. I might be paranoid but I must stress if you don't fully understand ohm's law and how to put an extra circuit breaker in your fuse panel\breaker box don't mess with this stuff...


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OfflineMLPismyOPSEC
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Re: Presto mod to control burner, keeping 15psi... [Re: tramalot]
    #26430813 - 01/13/20 08:15 AM (4 years, 16 days ago)

This is the thread you were thinking of, but it sounds like you've already got a good handle on it already! https://www.shroomery.org/forums/showflat.php/Number/22698514

I'm still in for final results :thumbup:


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InvisibleKimble
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Re: Presto mod to control burner, keeping 15psi... [Re: tedoro]
    #26430917 - 01/13/20 09:27 AM (4 years, 16 days ago)

Quote:

tedoro said:
Never going back to jars. 4 whole monotubs in one presto. boom.



Do you need a flow cab for that? That's all that keeps me from switching to bags to be honest. I don't feel confident doing bags in a SAB.



You could try making something like this? I'm not sure what the threads are on a presto but you should be able to find out?


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Offlinetedoro
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Re: Presto mod to control burner, keeping 15psi... [Re: tramalot]
    #26430946 - 01/13/20 09:45 AM (4 years, 16 days ago)

Quote:

tramalot said:
This is bare minimum imo. Ramp control
"Runaway" means you go look for your dog and at best you come back to a dry pot...




Again, one can match the hotplates wattage to be not a danger if running on full the whole run. 3 quarts squishing through the bobble wouldn't run dry in three hours. But again, if I hear a bobble, I'd know something is up.

and that ramp controller..... It looks cool, but for partial automation, couldn't my system work pretty well with no ramps? Turn it on, and turn it off? It handles the rest? Hell you could even put an AC timer switch in the mix.


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--------------------
Deep pour soft agar plates-->bags of WBS-->Low Profile Monos
Clean spawn thread | Put a thermometer on your PC


Edited by tedoro (01/13/20 09:47 AM)


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Offlinetedoro
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Re: Presto mod to control burner, keeping 15psi... [Re: Kimble]
    #26430956 - 01/13/20 09:51 AM (4 years, 16 days ago)

Quote:

Kimble said:
Quote:

tedoro said:
Never going back to jars. 4 whole monotubs in one presto. boom.



Do you need a flow cab for that? That's all that keeps me from switching to bags to be honest. I don't feel confident doing bags in a SAB.



You could try making something like this? I'm not sure what the threads are on a presto but you should be able to find out?




I saw that dudes setup. I really like it, but it still requires me constantly adjusting the stove. people doing bags know what I'm saying. And if I fuck up with that dudes setup and the stopcock blows, my bags are surely blown.

I've moved years ago from jars to bags with the intention of never having a flowhood. I would never advise it. they kinda go hand in hand. I got it down now, with pre-sealed bags and LI syringes.... but yah.


--------------------
--------------------
Deep pour soft agar plates-->bags of WBS-->Low Profile Monos
Clean spawn thread | Put a thermometer on your PC


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Offlinetedoro
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Re: Presto mod to control burner, keeping 15psi... [Re: tedoro]
    #26431491 - 01/13/20 02:36 PM (4 years, 16 days ago)

I'm running a full load of bags today with the setup. Setting the calibration 4 degrees low avoids the alarm, but, the temp will not register higher than an actual 248 (now 244) So I have the Temperature Set Value at 244f... which clicks the hot plate off (at actually 248 which is around 15.5psi. It drops to 13.5 psi. This was all on a test run this morning. I'm bleeding air out right now and preparing to bring it up to 15psi. Stay tuned.



--------------------
--------------------
Deep pour soft agar plates-->bags of WBS-->Low Profile Monos
Clean spawn thread | Put a thermometer on your PC


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Offlinetedoro
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Re: Presto mod to control burner, keeping 15psi... [Re: tedoro]
    #26431587 - 01/13/20 03:16 PM (4 years, 16 days ago)

It just ran its first heat cycle at 3minutes 40 second. Its staying between 13.5psi and 15psi. Thats the highest I can run it with this inkbird controller.


--------------------
--------------------
Deep pour soft agar plates-->bags of WBS-->Low Profile Monos
Clean spawn thread | Put a thermometer on your PC


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InvisiblebodhisattaMDiscordReddit
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Re: Presto mod to control burner, keeping 15psi... [Re: tedoro]
    #26431601 - 01/13/20 03:20 PM (4 years, 16 days ago)

Id feel like with your PC mods its extremely important that you babysit the thing the entire time. I frequently walk away from my PC runs once they're dialed in. Idk man using a simple bang bang controller and no fail-safes. Feels bad man.

If the worry is simply escaping steam. Run it at 14 or put weight on the weight and run it at 15.


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Re: Presto mod to control burner, keeping 15psi... [Re: bodhisatta]
    #26431630 - 01/13/20 03:31 PM (4 years, 16 days ago)

Quote:

bodhisatta said:
Id feel like with your PC mods its extremely important that you babysit the thing the entire time. I frequently walk away from my PC runs once they're dialed in. Idk man using a simple bang bang controller and no fail-safes. Feels bad man.

If the worry is simply escaping steam. Run it at 14 or put weight on the weight and run it at 15.




I get your concerns. The problem I've been having is that the huge bags take forever to get hot entirely through the bag, and I need to keep creeping the heat down. I read an old quote from RR regarding popping pre-sealed bags.. can't remember it verbatim but he said to make sure not to let the PC lose steam, because that means your bags might be boiling too.

Thus my interest in this.

I was just thinking another way to handle this is to have a kitchen thermometer with a probe taped to the lid, with the alarm set to 250f or whatever 16psi is... then you could jump up and lower the burner if it starts to get too hot.

This is working real nice tho....


--------------------
--------------------
Deep pour soft agar plates-->bags of WBS-->Low Profile Monos
Clean spawn thread | Put a thermometer on your PC


Edited by tedoro (01/13/20 03:31 PM)


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InvisiblebodhisattaMDiscordReddit
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Re: Presto mod to control burner, keeping 15psi... [Re: tedoro]
    #26431684 - 01/13/20 03:53 PM (4 years, 16 days ago)

Good luck man. A PID controller and thermo-probe is around 100 for something quality. Of course the PC has its on built in safety features.. if your thermometer probe falls off the cooker lands somewhere room temperature your going to be heating on full power till you notice it or notice the PC blowout plug


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Re: Presto mod to control burner, keeping 15psi... [Re: bodhisatta]
    #26431690 - 01/13/20 04:00 PM (4 years, 16 days ago)

Yep, that is certainly a possibility, or the probe fails. I have a healthy fear of these things.... and if either of those two happen, the bobble with go crazy for over an hour with the 3 quarts of water I got in there.

Its now only going between 14psi and 15psi as the bags warm. Pretty neat.


--------------------
--------------------
Deep pour soft agar plates-->bags of WBS-->Low Profile Monos
Clean spawn thread | Put a thermometer on your PC


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Re: Presto mod to control burner, keeping 15psi... [Re: tedoro]
    #26431727 - 01/13/20 04:30 PM (4 years, 16 days ago)

A logic controlled switch will "learn" the response of the stove and PC combo and eventually get so good it will do a near perfect job every time getting it up to 14.5 not a bit over and keeping it therr


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Re: Presto mod to control burner, keeping 15psi... [Re: bodhisatta]
    #26431861 - 01/13/20 05:49 PM (4 years, 16 days ago)

I ran the presto PC with four grain bags just now. Worked great. At the end I unplugged the hotplate from the inkbird controller and set the hotplate on low to slow the depressurization.

The first half of the 2.5 hour run was between 14psi and 15 psi... the second half was between 15 psi and 16 psi. the burner was on for between 3.5 minutes (at the beginning) and 2 minutes (at the end)

It was nice to not have to constantly adjust the hot plate.

Proof of concept complete. Not sure if this is a good idea, but its pretty cool.

T


--------------------
--------------------
Deep pour soft agar plates-->bags of WBS-->Low Profile Monos
Clean spawn thread | Put a thermometer on your PC


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Re: Presto mod to control burner, keeping 15psi... [Re: tedoro]
    #26432721 - 01/14/20 08:05 AM (4 years, 15 days ago)

Awesome. Good job.


--------------------
But if you're in a hurry, and really got to go
If you're in a hurry, might have to find out slow
That it's one thing to try and another to fly
You get there quicker just a step at a time
It's one thing to bark, another to bite
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Re: Presto mod to control burner, keeping 15psi... [Re: tedoro]
    #26742703 - 06/13/20 09:04 PM (3 years, 7 months ago)

Hey,

I bailed on cheaply automating a burner, so I went with this idea.



https://www.shroomery.org/forums/showflat.php/Number/26742520#26742520

It just give temps and can set alarms for respective pressures.

Its been working real nice like.


--------------------
--------------------
Deep pour soft agar plates-->bags of WBS-->Low Profile Monos
Clean spawn thread | Put a thermometer on your PC


Extras: Filter Print Post Top
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Shop: PhytoExtractum Maeng Da Thai Kratom Leaf Powder   North Spore Bulk Substrate, Injection Grain Bag   Mushroom-Hut Liquid Cultures


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