Index: liquid.lua
==================================================================
--- liquid.lua
+++ liquid.lua
@@ -1,19 +1,38 @@
 -- liquid.lua
 -- the liquid registry is used to keep track of abstract liquids,
 -- their properties, and their representation in-game.
 
 sorcery.registry.mk('liquid', false)
+local mkunit = function(unit,fac)
+	return function(amt)
+		-- allow division for more accurate results
+		if fac >= 0 then
+			amt = amt * fac
+		else
+			amt = amt / (-fac)
+		end
+		return string.format('%s %s%s', amt, unit, (amt == 1) and '' or 's')
+	end
+end
 sorcery.liquid = {
 	constants = {
 		drams_per_glass = 64;
+		pints_per_glass = 0.5;
 		glasses_per_bottle = 3;
 		bottles_per_bucket = 3;
 		bottles_per_trough = 6;
-	}
+	};
+	unit = mkunit;
 }
 local constants = sorcery.liquid.constants
+sorcery.liquid.units = {
+	dram = mkunit('dram', constants.drams_per_glass);
+	pint = mkunit('pint', constants.pints_per_glass);
+	draught = mkunit('draught', -3);
+	drink = mkunit('drink', 1);
+};
 
 local L = sorcery.lib
 local log = sorcery.logger('liquid')
 
 sorcery.liquid.fill_from_basin = function(ctr, liquid, basin)
@@ -166,13 +185,11 @@
 		})
 	end
 end
 sorcery.liquid.mktrough()
 
-sorcery.liquid.measure_default = function(amt)
-	return string.format('%s drams', amt*constants.drams_per_glass)
-end
+sorcery.liquid.measure_default = sorcery.liquid.units.dram
 
 sorcery.liquid.container = function(liq, ctr)
 	return liq.containers[({
 		bottle = 'vessels:glass_bottle';
 		glass = 'vessels:drinking_glass';

Index: potions.lua
==================================================================
--- potions.lua
+++ potions.lua
@@ -122,11 +122,11 @@
 		id = 'sorcery:'..id;
 		name = fullname;
 		color = v.color;
 		proto = v;
 		kind = 'sorcery:potion';
-		measure = function(amt) return string.format('%s draughts', amt / 3) end;
+		measure = sorcery.liquid.units.draught;
 		containers = {
 			['vessels:glass_bottle'] = 'sorcery:' .. id;
 		};
 	}
 	v.kind = kind_potion;
@@ -304,10 +304,11 @@
 		id = liqid;
 		name = desc;
 		kind = 'sorcery:extract';
 		proto = v;
 		color = v[2];
+		measure = sorcery.liquid.units.pint;
 		containers = {
 			['vessels:glass_bottle'] = liqid;
 		};
 	}
 

Index: recipes.lua
==================================================================
--- recipes.lua
+++ recipes.lua
@@ -412,11 +412,18 @@
 
 regtech('warding_plate', 'Warding Plate', {metal = 1}, {
 	{'basic_materials:gold_wire','basic_materials:gold_wire','basic_materials:gold_wire'};
 	{'',mtlp('vidrium','block'),''};
 	{'basic_materials:gold_wire','basic_materials:gold_wire','basic_materials:gold_wire'};
-}, 4)
+}, 4, {
+	{'basic_materials:gold_wire', 'basic_materials:empty_spool'};
+	{'basic_materials:gold_wire', 'basic_materials:empty_spool'};
+	{'basic_materials:gold_wire', 'basic_materials:empty_spool'};
+	{'basic_materials:gold_wire', 'basic_materials:empty_spool'};
+	{'basic_materials:gold_wire', 'basic_materials:empty_spool'};
+	{'basic_materials:gold_wire', 'basic_materials:empty_spool'};
+})
 regtech('ley_puncture', 'Ley Puncture', {metal = 1}, {
 	{'default:flint','sorcery:tungsten_ingot','group:sorcery_ley_cable'};
 	{'','group:sorcery_ley_cable',''};
 	{'group:sorcery_ley_cable','sorcery:tungsten_ingot','default:flint'};
 })
@@ -423,16 +430,23 @@
 regtech('pulse_rectifier', 'Pulse Rectifier', {metal = 1})
 regtech('current_felicitator', 'Current Felicitator', {metal = 1}, {
 	{'basic_materials:silver_wire','basic_materials:silver_wire','basic_materials:silver_wire'};
 	{'sorcery:cobalt_ingot','sorcery:inversion_matrix','sorcery:cobalt_ingot'};
 	{'default:bronze_ingot','sorcery:platinum_ingot','default:bronze_ingot'};
+},1,{
+	{'basic_materials:silver_wire', 'basic_materials:empty_spool'};
+	{'basic_materials:silver_wire', 'basic_materials:empty_spool'};
+	{'basic_materials:silver_wire', 'basic_materials:empty_spool'};
 })
 
 regtech('conduction_plate', 'Conduction Plate', {metal = 1}, {
 	{'','default:copper_ingot',''};
 	{'','stairs:slab_stone',''};
 	{'basic_materials:copper_wire','basic_materials:steel_bar','basic_materials:copper_wire'};
+}, 1, {
+	{'basic_materials:copper_wire', 'basic_materials:empty_spool'};
+	{'basic_materials:copper_wire', 'basic_materials:empty_spool'};
 })
 
 regtech('catalytic_convector', 'Catalytic Convector', {metal = 1}, {
 	{'basic_materials:heating_element','default:gold_ingot','basic_materials:heating_element'};
 	{'default:mese_crystal','default:mese_crystal','default:mese_crystal'};
@@ -545,10 +559,13 @@
 	recipe = {
 		{'','sorcery:inverter_coil','basic_materials:gold_wire'};
 		{'sorcery:inverter_coil','sorcery:leyline_stabilizer','sorcery:inverter_coil'};
 		{'basic_materials:gold_wire','sorcery:inverter_coil',''};
 	};
+	replacements = {
+		{'basic_materials:gold_wire', 'basic_materials:empty_spool'};
+	};
 }
 
 
 minetest.register_craft {
 	output = 'sorcery:field_emitter';

Index: tree.lua
==================================================================
--- tree.lua
+++ tree.lua
@@ -6,14 +6,10 @@
 	sapling = 'default:sapling';
 }
 local log = sorcery.logger('tree')
 local L = sorcery.lib
 
-local measure_sap = function(v) -- v in half-pints
-	return string.format('%s pints', v / 2)
-end
-
 sorcery.register.trees.foreach('sorcery:treesetup', {}, function(id, t)
 	-- generates sap and hooks handlers appropriately
 	if t.node then
 		local def = minetest.registered_nodes[t.node]
 		local nextfn = def.on_place
@@ -43,11 +39,11 @@
 			name = sapdesc;
 			kind = 'sorcery:sap';
 			color = t.sapcolor or t.color or {119,24,30};
 			autogen = true;
 			imgvariant = 'sparkle';
-			measure = measure_sap;
+			measure = sorcery.liquid.units.pint;
 			usetrough = t.sap ~= false;
 		}
 	end
 
 end)