
MeanMutton |

Since it's the rules forum - there's no explicit rule that allows for this. In fact, the Piecemeal Armor rules seem to say you can't do it:
Any individual armor piece can be of masterwork construction or constructed of special materials, or, if it is of masterwork construction, it can be magically enchanted at the standard cost. In this manner, each armor piece is treated as its own type of armor, but most armorers and magic item crafters know that this is an inefficient way of making and enchanting armor.
It goes on like this a bit more.
Perfectly reasonable for a GM to determine a work-around. A couple above seemed reasonable.

Oxylepy |
Most importantly check with your GM. Mechanically you'd likely be trading your armor for another armor, which would get you the armor you want.
Personally I don't think this makes sense at all. What you have is an enchanted armor, which incurred a base cost to make it magical, which imbued magic properties on the armor. What you are trying to do is add pieces to the armor, and swap other pieces out. The end result is part of a magic armor set, and a bunch of mundane pieces. Which is not going to be the same as +1 full plate.
From there you would either have a very awkwardly enchanted suit of armor, or need to have the rest somehow enchanted to match. Considering the cost of magic enhancement is standard and not easily broken into pieces, that would cost the same as the standard +1 to add it to the pieces. Unless piecemeal armor rules have something else.
Not to mention, half-plate isn't even described as an actual portion of fullplate, it's a combination of elements of fullplate and chainmail, leading to a unique type of armor, where maybe 3/4ths could be used for your fullplate, but you'd need to fill in the gaps.
Unless there are any 1 to 1 rules from something to pull magic off one thing and move it to another thing, if you could do that it would be easy.

Ambrus |

I'm actually the GM. One of my players has asked whether it'd be feasible to upgrade an archaic suit dwarven half-plate the party found in a tomb. I was curious whether there was some system introduced that'd make this possible. My first instinct was to say no, for largely the same reasons Oxylepy stated. On the other hand, if it makes the player happy, why not?

GM Rednal |
I feel like it should be doable if you have a talented, magical smith on hand. As a GM, I try to say "yes" to player ideas whenever possible, especially if they wouldn't gain any explicit benefit. As long as the GP price was the same (functionally "selling the half-plate for half its value and buying the full-plate at full value", or the appropriate amount of crafting materials and the Craft Magic Arms and Armor feat for doing it themselves), I'd allow it. The mechanics would ultimately end up the same, and if it makes a player happy to imagine adjusting something that way, why not?

Lucy_Valentine |
I'm actually the GM. One of my players has asked whether it'd be feasible to upgrade an archaic suit dwarven half-plate the party found in a tomb. I was curious whether there was some system introduced that'd make this possible. My first instinct was to say no, for largely the same reasons Oxylepy stated. On the other hand, if it makes the player happy, why not?
If they can find a competent smith to fit the pieces, and someone who can enchant the pieces they're adding, then personally I'd allow it. It adds flavour to their gear, and it adds possible plot hooks later when someone recognises the armour, or it somehow becomes significant. Maybe when they add the pieces the style is different, and somewhere along the way there's a prophecy of a warrior who is both ancient and new, or something. Or maybe that's naff and you don't do that. But the point is, if you don't allow it, they sell it and buy something else. If you do, then they have an item with history and possible plot hooks.
The alternative would be suggesting that since it's ancient it has collector value, and then getting them to go on an epic quest to find the right kind of buyer who will pay way more than its practical value.
Either way makes story. :-)

MeanMutton |

I'm actually the GM. One of my players has asked whether it'd be feasible to upgrade an archaic suit dwarven half-plate the party found in a tomb. I was curious whether there was some system introduced that'd make this possible. My first instinct was to say no, for largely the same reasons Oxylepy stated. On the other hand, if it makes the player happy, why not?
Since we're in GM advice mode now - whenever you think "No", consider if you can instead say "Yes, but..."
So, they could get this by selling the half-plate for half price and then buying the full-plate for full price. That difference should be the cost of doing it.

Ambrus |

So, they could get this by selling the half-plate for half price and then buying the full-plate for full price. That difference should be the cost of doing it.
I'd crunched the numbers in different ways, but your solution seems the simplest, fairest and most in keeping with the rules. Thanks MeanMutton. :)

FrozenLaughs |

I would presume that the half plate has some sort of enchantments or bonuses that makes it enticing to upgrade? I don't see why just paying the cost difference between the two as work and materials and adding some time to craft wouldn't suffice? Why are we valuing the half plate at half value before the upgrade though, he's not technically selling it? We only value things at 50% for the merchant markup for resale.

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Check the rules about piecemail armor. Personally I wouldn't allow that. Half plate is described as a mix of full plate parts with chain mail. Full plate don't cite chain mail at all.
Throwing away part of the armor and adding new parts seem too much of a change to be acceptable.
Full Plate: This metal suit includes gauntlets, heavy leather boots, a visored helmet, and a thick layer of padding that is worn underneath the armor. Each suit of full plate must be individually fitted to its owner by a master armorsmith, although a captured suit can be resized to fit a new owner at a cost of 200 to 800 (2d4 × 100) gold pieces....
Half-Plate: Combining elements of full plate and chainmail, half-plate includes gauntlets and a helm.

wintersrage |
Check the rules about piecemail armor. Personally I wouldn't allow that. Half plate is described as a mix of full plate parts with chain mail. Full plate don't cite chain mail at all.
Throwing away part of the armor and adding new parts seem too much of a change to be acceptable.PRD wrote:
Full Plate: This metal suit includes gauntlets, heavy leather boots, a visored helmet, and a thick layer of padding that is worn underneath the armor. Each suit of full plate must be individually fitted to its owner by a master armorsmith, although a captured suit can be resized to fit a new owner at a cost of 200 to 800 (2d4 × 100) gold pieces....
Half-Plate: Combining elements of full plate and chainmail, half-plate includes gauntlets and a helm.
You realize under piecemail armor they do allow mixing and matching armor pieces you get the full bonus each piece would give you for the type or armor it is. The fact ad well under breastplate specifically stats you can upgrade to full place by adding boos gauntlets and a helm leads me to believe you should be able to upgrade half plate to full place as breastplate could be look at half armor, half plate e could be seen as 3/4 armor and full plate would be full armor.

MeanMutton |

I would presume that the half plate has some sort of enchantments or bonuses that makes it enticing to upgrade? I don't see why just paying the cost difference between the two as work and materials and adding some time to craft wouldn't suffice? Why are we valuing the half plate at half value before the upgrade though, he's not technically selling it? We only value things at 50% for the merchant markup for resale.
We're valuing it at half value because under the rules, you can't upgrade magic armor from half plate to full plate. You can sell the half plate and buy full plate, though under the rules so my feeling is that the house rule to accommodate what the player wants to do would mirror what working within the rules would allow.
I mean, what's the purpose here? To try to cheese out some extra gold for the character or to have the character be able to make full use of an item to help move the story forward?

MeanMutton |

Diego Rossi wrote:You realize under piecemail armor they do allow mixing and matching armor pieces you get the full bonus each piece would give you for the type or armor it is. The fact ad well under breastplate specifically stats you can upgrade to full place by adding boos gauntlets and a helm leads me to believe you should be able to upgrade half plate to full place as breastplate could be look at half armor, half plate e could be seen as 3/4 armor and full plate would be full armor.Check the rules about piecemail armor. Personally I wouldn't allow that. Half plate is described as a mix of full plate parts with chain mail. Full plate don't cite chain mail at all.
Throwing away part of the armor and adding new parts seem too much of a change to be acceptable.PRD wrote:
Full Plate: This metal suit includes gauntlets, heavy leather boots, a visored helmet, and a thick layer of padding that is worn underneath the armor. Each suit of full plate must be individually fitted to its owner by a master armorsmith, although a captured suit can be resized to fit a new owner at a cost of 200 to 800 (2d4 × 100) gold pieces....
Half-Plate: Combining elements of full plate and chainmail, half-plate includes gauntlets and a helm.
Also under Piecemeal Armor, they mention that combining pieces from different piecemeal sets requires each item to be enchanted separately. That would be the significantly more expensive way to go.

GM Rednal |
Why are we valuing the half plate at half value before the upgrade though, he's not technically selling it? We only value things at 50% for the merchant markup for resale.
Because the idea is for the upgrade to cost the same regardless of how the PC goes about it. Upgrades shouldn't be a way of getting valuable things for a lower cost than they would otherwise have to pay. If it costs the same, you're free to focus on the story elements (how/why they get an upgrade), rather than the mechanical (what's the most cost-effective way to upgrade).

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Diego Rossi wrote:You realize under piecemail armor they do allow mixing and matching armor pieces you get the full bonus each piece would give you for the type or armor it is. The fact ad well under breastplate specifically stats you can upgrade to full place by adding boos gauntlets and a helm leads me to believe you should be able to upgrade half plate to full place as breastplate could be look at half armor, half plate e could be seen as 3/4 armor and full plate would be full armor.Check the rules about piecemail armor. Personally I wouldn't allow that. Half plate is described as a mix of full plate parts with chain mail. Full plate don't cite chain mail at all.
Throwing away part of the armor and adding new parts seem too much of a change to be acceptable.PRD wrote:
Full Plate: This metal suit includes gauntlets, heavy leather boots, a visored helmet, and a thick layer of padding that is worn underneath the armor. Each suit of full plate must be individually fitted to its owner by a master armorsmith, although a captured suit can be resized to fit a new owner at a cost of 200 to 800 (2d4 × 100) gold pieces....
Half-Plate: Combining elements of full plate and chainmail, half-plate includes gauntlets and a helm.
Why do you think I suggested him to check the piecemeal armor rules? Because he can find an alternate reply there.
"I don't like it" is referred to doing that with the standard rules.Note that the piecemeal armor rules show that to change a half plate to a full plate you have to remove the chain leg section and add a plate leg section, not simply "adding additional plates, padding & reinforcement" as proposed by the opening post.

Morganstern |

As the GM feel free to do what makes the most sense, but personally I'd say it would be very difficult. Assuming that enchanting armor (or anything for that matter) fundamentally alters the item, just adding in the extra protection might well damage the piece. Speaking from personal experience, half-plate armor and full-plate armor are actually constricted very differently. Half plate is made that way intentionally, it's not "partial full-plate" but rather its own style.
If you want to allow this, I would make the craft DC rather hard as you're trying to alter the physical shape and design of the piece without harming the magical enemies that are imbued throughout it.