Scaling, downsizing, and choosing which legion question

[Uprising]

I am in the process of downsizing my entire collection due to unfinished projects, time, space, and motivation reasons.  Today, I was over looking my unbuild HH collection, and it is massive.  I have recent models, to model ranging back to the first wave that forge world released.  For 2026, my main goal is to start painting more and downsizing (which is working, as I have already sold a Blood angel, and ultramarine army).  I have a few questions and would like some guidance in choosing at most two legion / or one combined projects.  

 

• What is the size difference of the resin tanks and dreadnoughts compare to there plastic version?  I know the marines and new terminators are slightly bigger?  
• What is the size difference of the resin ad mech (thralls, Thallax, Castellax, etc) compare to there plastic version?  
• What is the size difference of the resin jetbikes compare to there plastic version?  
• Do the old upgrade torso (and similar kits) fit on the newer plastic or do they need modified?  
• Do the new plastic weapon upgrade work on older / resin plastic?  Vise versa?  

 

On the project side, I have the following: Death Guard, iron hands, iron warriors, fist, salamander, thousands son, raven guard, alpha legion, ad mech, knights, world eater / warhounds, white scars, and word bearers.  Still taking inventory, but I am at the point would it be easier to just restart with the newer plastic and sell off the older marines (which is why I am curious about tank and dreadnought size)?  Thoughts are welcome. 

 

Final note: I am more of a painter / modeller and do not play the tabletop, so rules do not matter here.  The story does.  

 

P.S. If this is not the best place to post, please let me know.   

Edited 4 hours ago by Uprising

[Grotsmasha]

4 hours ago, Uprising said:

• What is the size difference of the resin tanks and dreadnoughts compare to there plastic version?  I know the marines and new terminators are slightly bigger?  
• What is the size difference of the resin ad mech (thralls, Thallax, Castellax, etc) compare to there plastic version?  
• What is the size difference of the resin jetbikes compare to there plastic version?  
• Do the old upgrade torso (and similar kits) fit on the newer plastic or do they need modified?  
• Do the new plastic weapon upgrade work on older / resin plastic?  Vise versa?  

 

1- My understanding is they're of comparable size.

2- I have no experience here.

3- mkIV yes, mkII, mkIII, and mk VI, no. The incompatible ones are modelled like primaris, with the rear torso attached to the legs.

4- IIRC, yes, BUT hands will be need to be cut from the older models, as the upgrade kits have trigger hands on the guns

[LameBeard]

Let me take the easy ones:

 

In the current plastic kits (mk vi, iii and ii), the torsos and legs are typically not interchangeable.  This makes compatibility with resin torsos a real pain.  There has also been a bit of scale creep, mostly abdomen and leg.

 

The current kits l also typically have left hand moulded to weapon, unlike the old kits which had a separate “cupping” left arm. It is, however, pretty easy to use old arms and weapons on new bodies or new arms and weapons on old bodies, because the scale is slightly less “heroic” so scale creep didn’t happen to hands and heads.

 

As far as I know, resin and plastic tanks are the same size, but I own hardly any, so can’t be sure. No idea about Jet bikes.

 

So in summary, I would say compatibility can be an issue, and for those that are picky, also scale creep. For example, if you like your current terminator design, maybe keep them with older power armour models? Those old mk iv and iii are now quite valuable.

 

If I were you, about to downsize radically, I would keep 2 legions: one old scale with forgeworld resin bling, one new scale in largely GW plastic.  Best of both worlds, one traitor one loyalist. When fatigue sets in, swap to painting the other.