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OfflinePhrontist
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Custom C.U.L.T. - Cultivation, Utility, and Laboratory Tool (version 2)
    #26838235 - 07/22/20 12:44 PM (3 years, 6 months ago)





Version 1 the general consensus was that it was too big, too unwieldy, and basically sucked ass if it was to be used for agar. This revision addresses the need for a long thin handle, and replaces the single blade concept with a rotating, double sided mechanism. One side features a long blade, the other a receiving post for replaceable scalpel blades (since they’re perfect for what we do, I felt this was better than creating a single blade that can’t be swapped for other sizes or replaced if necessary).

The butt end of the tool has a copper punch tube for creating agar transfer pucks. Copper both heats and cools rapidly, making it great for flame sterilization.

Not pictured is a cap which has a cleaning brush built in, and fits onto either end of the tool, covering the copper punch for harvesting/foraging or the scalpel for when you put the tool away.

Looking forward to getting feedback from everyone!


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Invisibleforagedfungus
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Re: Custom C.U.L.T. - Cultivation, Utility, and Laboratory Tool (version 2) [Re: Phrontist]
    #26838384 - 07/22/20 01:47 PM (3 years, 6 months ago)

A torch will melt copper.
I'd use stainless steel, or maybe even titanium.

I appreciate what you're going for. And I love the name.
But do you really want to bring the harvest knife into your sterile work?
To me it'd be more practical to make two separate tools.
A nice mushroom knife and a custom agar tool.


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OfflineManifoldPrime
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Re: Custom C.U.L.T. - Cultivation, Utility, and Laboratory Tool (version 2) [Re: foragedfungus]
    #26838400 - 07/22/20 01:53 PM (3 years, 6 months ago)

Hell yeah, you listened to the critiques.
I would say this would be cool if I could sterilise the whole thing before use. While @foragedfungus brings up a good point about bringing a harvest knife near the SAB, I think if you owned multiple or were just mindful of throwing it in with your agar in the PC its all good. I'd make the scalpel holding bit a lil longer, and maybe round off the end - I think if the blade were thing you could also use that as a scalpel. I'd have no qualms doing that if it were wiped clean and sterilised.


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OfflineSvetaketu
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Re: Custom C.U.L.T. - Cultivation, Utility, and Laboratory Tool (version 2) [Re: ManifoldPrime] * 1
    #26838410 - 07/22/20 01:59 PM (3 years, 6 months ago)

Hi Phrontist, I missed the version 1 thread, but I have some thoughts on what I'm seeing here.

it seems like it would be much heavier than a normal scalpel. like at least 3-4x the size/weight. That would get to be a lot if you had more than a few transfers to do. Even if the material was extremely light, the long skinny shape might make it a bit awkward to work with.

Sadly, I'm not sure I get the appeal of the design. I like that my scalpel is small, I keep it with my agar supplies so It doesn't get lost or dirty. If my scalpel handle doubled as a harvesting knife, I would have to worry about cleaning the handle before using it to do sterile work,  otherwise I might invite unwanted mushroom spores from my last harvest into my SAB.

IMO a much more useful CULT-multi-tool would be one that was a scalpel that doubled as an inoculation loop, since both loops and scalpels are meant for sterile work inside a SAB, and I've personally made and lost more inoculation loops than I care to admit.

Anyway, thats my 2 cents. Hope you find my mind vomit constructive.


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InvisiblePastywhyteMDiscord
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Re: Custom C.U.L.T. - Cultivation, Utility, and Laboratory Tool (version 2) [Re: Phrontist]
    #26838532 - 07/22/20 02:50 PM (3 years, 6 months ago)

That’s a better look than the first pig sticker you came up with. But I just can’t see myself using that. I like my spear scalpels and the #11 where they aren’t long enough. I use a set of titanium fiskars for harvest and I twist and pull. Right tool for the job and all that.


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OfflinePhrontist
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Re: Custom C.U.L.T. - Cultivation, Utility, and Laboratory Tool (version 2) [Re: Pastywhyte]
    #26838599 - 07/22/20 03:21 PM (3 years, 6 months ago)

Thanks for checking it out and posting feedback.

I get what y’all are saying. As a multi-tool, this is never going to be as good as a single tool dedicated to a single job. It’s also likely not going to interest people who do a heavy amount of volume. An ounce or two more weight won’t matter over the course of a few plates a week, but it’s a dealbreaker for people doing dozens or more.

But that’s cool. I’m not trying to mass produce or market this (knife market is insanely over saturated). Just looking to make a usable tool for a casual cultivator, and the whole project is fun for me too. :smile:

In terms of copper melting, it’s used in plumbing regularly where it’s torched for soldering and holds up great. Not sure why it wouldn’t work here. Can you provide more detail about your concern?


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InvisiblePastywhyteMDiscord
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Re: Custom C.U.L.T. - Cultivation, Utility, and Laboratory Tool (version 2) [Re: Phrontist]
    #26838611 - 07/22/20 03:27 PM (3 years, 6 months ago)

If you anneal the copper in the process it’s going go soft and be difficult to get any hardness back.


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Invisibleforagedfungus
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Re: Custom C.U.L.T. - Cultivation, Utility, and Laboratory Tool (version 2) [Re: Pastywhyte]
    #26838879 - 07/22/20 05:27 PM (3 years, 6 months ago)

You can definitely melt copper pipe with a torch.
Copper melts at 1,982F. A berzOmatic propane torch can get up to 3,600F.
Of course, I'm not turning it all the way up and getting it that hot to sterilize my tools. But even surgical stainless scalpel blades start to deteriorate after a bunch of flaming.


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Invisiblesandman420
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Re: Custom C.U.L.T. - Cultivation, Utility, and Laboratory Tool (version 2) [Re: foragedfungus]
    #26838894 - 07/22/20 05:36 PM (3 years, 6 months ago)

Copper will never work it is the wrong choice of metal for the punch! It will oxidise and turn into a cruddy doodoo tube if it doesn't even melt. Just stainless. It's a really elegant design I will give you that. But I find the knife unnecessary because harvesting off the substrate leads to moldy stumps so better to twist n pull and then cut with shears or any knife. Beatiful design though. I would like to see it just the scalpel on one side and the punch (stainless) on the other because I hate having to lift the punched circles out with a separate scalpel. 1/4" punch doesnt lift out the specimen easily but is the ideal size IMO. So no inner disharge stick for the punch just a tube punch on one side and a scalpel holder on the other.


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OfflinePhrontist
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Re: Custom C.U.L.T. - Cultivation, Utility, and Laboratory Tool (version 2) [Re: foragedfungus]
    #26838927 - 07/22/20 05:57 PM (3 years, 6 months ago)

Gotcha, makes sense. I don’t think I get anywhere near annealing temperature for long enough for it to be a factor, but this could very well be a situation where it’s better to play it safe.

I appreciate the knowledge, as always!


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OfflinePhrontist
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Re: Custom C.U.L.T. - Cultivation, Utility, and Laboratory Tool (version 2) [Re: sandman420]
    #26838950 - 07/22/20 06:06 PM (3 years, 6 months ago)

Quote:

sandman420 said:
harvesting off the substrate leads to moldy stumps so better to twist n pull and then cut with shears or any knife




Nah. Mold spores leads to mold. Cutting at substrate just leaves stumps. I just tossed a tub earlier today that had three full flushes cut to stumps, and didn’t have a spec of contamination anywhere.

Quote:

sandman420 said:
I would like to see it just the scalpel on one side and the punch (stainless) on the other because I hate having to lift the punched circles out with a separate scalpel. 1/4" punch doesnt lift out the specimen easily but is the ideal size IMO. So no inner disharge stick for the punch just a tube punch on one side and a scalpel holder on the other.




That’s certainly still a possibility, and really not a bad idea. I’ve been running through how I would be using the tool in my head recently, and the idea of punching with one end then switching to scalpel with a simple finger twirl to the other end was one of the more elegant features to me. I could probably cut the weight significantly all around, as well. Maybe I’ll do a quick mock up and see what it’s like.

Thanks for the reply and the kind words, BTW. :smile:


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Invisiblesandman420
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Re: Custom C.U.L.T. - Cultivation, Utility, and Laboratory Tool (version 2) [Re: Phrontist]
    #26839032 - 07/22/20 06:45 PM (3 years, 6 months ago)

You done did inspire me n I had a mapipiny.

I had been using this 1/4" OD 0.01" Seamless 304 stainless tubing I bought on ebay for doing these biopsy punch transfers. Using a scalpel is necessary to lift out the circles though, they don't tend to stick to the punch at all. So here is my Spear/Punch Cool-Tool™










--------------------
- Sandbag Tek - How To Sterilize Spawn Bags - All About Static Pressure / Pressure Drop for DIY Flow Hoods - Sandman's LC Tek-

Marijuanaut escapes earth to cultivate - Grow-room is church temple of the new stoner breed


Edited by sandman420 (07/22/20 06:51 PM)


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Offlineichugwindex
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Re: Custom C.U.L.T. - Cultivation, Utility, and Laboratory Tool (version 2) [Re: sandman420]
    #26839261 - 07/22/20 08:45 PM (3 years, 6 months ago)

Quote:

sandman420 said:
You done did inspire me n I had a mapipiny.

I had been using this 1/4" OD 0.01" Seamless 304 stainless tubing I bought on ebay for doing these biopsy punch transfers. Using a scalpel is necessary to lift out the circles though, they don't tend to stick to the punch at all. So here is my Spear/Punch Cool-Tool™













I must have this. Where can I get such a thing?


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OfflinePhrontist
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Re: Custom C.U.L.T. - Cultivation, Utility, and Laboratory Tool (version 2) [Re: ichugwindex]
    #26839337 - 07/22/20 09:20 PM (3 years, 6 months ago)

Cool tool indeed :thumbup:


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OfflineDispsiple
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Re: Custom C.U.L.T. - Cultivation, Utility, and Laboratory Tool (version 2) [Re: Svetaketu] * 2
    #26839514 - 07/22/20 11:10 PM (3 years, 6 months ago)

This idea with the loop sounds good, and would make a decent name too - Cultivation, Laboratory, and inoculation Tool; The C.L.I.T.


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