Liebig shotgun hybrid, am I smoking something?

[hardboil]

Hi All,

I have been thinking of what type of output condenser to make for my new build, there seems to be a number of options.

Liebig looks easy to make and has good performance.

Shotgun look a much more complex to make but, would clearly have a higher efficiency.

I looked at the shotgun design and wondered if you could get some pooling at the top plate. I was thinking how you might solve that problem and simplify the build. What I came up with is below, it would use some left over 54mm pipe as the body of the shotgun.

I prototyped the 8mm manifold Y, I took a 8mmm to 15mm reducer and heated it enough to squeeze it into an oval on the 15mm side and then slipped in to 8mm drill bits and worked it with heat and a cold chisel. My plan would be to rotate the second set of Y's by 90".

Would really like to hear peoples thoughts, I'm hoping this is an original idea, but I'm not holding out my hopes?

thanks Stan.

[still_stirrin]

....Would really like to hear peoples thoughts, I'm hoping this is an original idea, but I'm not holding out my hopes?....

What have you been smoking?

Seriously, what you've proposed would work although I would doubt it would be as efficient as a shotgun. Plus, with so many fittings, the cost will be more. Finally, shotguns are not too difficult to make...take the challenge.

So....pass the smoke this way....
ss

[Kegg_jam]

So looking at the needle valve and 8 mm tubing, I'm assuming it's an LM.

You're looking at making an after cooler? Cooling liquid and not vapor. It doesn't take much to achieve that. I think a simple Liebig is more than sufficient.

[pfshine]

While I love the fab work and enthusiasm, if its for a boka it is totally unnecessary. And if its not that 3/8 od is entirely to small. Either way I like the thinking going on. Good on ya for thinking outside the box. BTW you can negate any pooling in a shotty by making it slightly concave and making the tubes flush.

[Brutal]

I think this is a very interesting idea. If built right you could create a shotgun condenser that would not have to be run perfectly vertical.

I wouldn't give up on the idea but..

Problems:
The incoming vapor tube is too small. Why the heck is there a needle valve? The cooling water inlet should be at the other end.

[pfshine]

I think this is a very interesting idea. If built right you could create a shotgun condenser that would not have to be run perfectly vertical.

I wouldn't give up on the idea but..

Problems:
The incoming vapor tube is too small. Why the heck is there a needle valve? The cooling water inlet should be at the other end.

Since when do shottys have to be perfectly vertical?

[googe]

Great minds think alike hardboil . Been working on similar for a while now, hard to find the y fittings here though!. I'm doing 15mm inlet, then split into 2x15mm inert pipes inside 1.5" cooling jacket. I think it's a great idea, easy to build, don't need to make end plates. I want mine for a shorter idea to a long liebig for a pot. Good luck with it, don't forget to.show.more pics and how it runs .

[hardboil]

HI All,

thanks all for the comments, they have given me some ideas and a plan. Sorry for the confusion, I'm building 2 things and Boka with a VM take off valve and a pot head for stripping runs or more the more traditional pot still functions.

I take on board Kegg_jam's point if it for LM cooling it might be over kill and I also think I need a base line to work off of so I'm going to build a Liebig as control for the baseline measurements. Once I have a performance profile for that based on flow rate and temperature I can build anything else and understand the deltas.

Google With 3 bits of 15mm iron or steel rod your fittings should be pretty easy to fabricate, you just need a very blunt cold chisel. To sharp and you could punch straight though the copper.

I have a micro controller with 3 temp sensors and I have ordered a flow rate monitor I will hook up to for data logging.

thx Stan

[Danespirit]

Well, pass the dutch tobacco...
What is that needlevalve doing on the inlet..??
8mm pipe is very small...what are your purpose with this cooler...??

[Yummyrum]

I love your idea and how you have worked the copper. Did you need to anneal it while working it ?.

Not so sure that pooling in a shotty is such a biggy. There are other areas like the slant plates and parrots which do a better job at it.

Keep up the good work and the pics coming

[Bushman]

The cooling water inlet should be at the other end.

+1, my first thoughts before looking at anything else.

[Halfbaked]

I like your idea. Its not perfect but it is easy. It would definitely be easier to build than a shotgun. You definitely need minimum of 1/2 inch pipe. It would definitely be more efficient than a liebig. My shotgun is 20 in. I think you might want to be longer by around 6 inches. Keep the forward thinking coming.

[hardboil]

I love your idea and how you have worked the copper. Did you need to anneal it while working it ?.

Not so sure that pooling in a shotty is such a biggy. There are other areas like the slant plates and parrots which do a better job at it.

Keep up the good work and the pics coming

Yeah, a fair amount but, at the smaller size its doesn't take much to get it hot, cherry red I would say is just too far. Handy to have a second pair of hands, buy beer and invite a buddy


Some confusion on the valve, just drew it on auto pilot, it would just be a normally value or in the case of a pot still no valve. This would be use for VM and given the advice here I would up it to 15mm pipe and build it on a shotgun scale. Till I can get the temp sensors set up and the flow rate control in place its a mute point, as I wouldn't be able to measure any differences.

[hardboil]

thanks for all the feedback, clearly what I'm smoking its totally out there hahaha!