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Medieval Engineers

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Train Parts Pulleys
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Type: Mod
Mod category: block, animation, script, other
Version: 0.7
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3.292 MB
2020년 8월 28일 오전 11시 30분
2025년 8월 23일 오후 2시 43분
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Train Parts Pulleys

설명
This is a part of a modpack which can be found here:
https://gtm.steamproxy.vip/sharedfiles/filedetails/?id=1868198266

The cars seen on the pictures can be found here:
https://gtm.steamproxy.vip/sharedfiles/filedetails/?id=1691687874

Locomotives from us can be found here:
https://gtm.steamproxy.vip/sharedfiles/filedetails/?id=1692456187

Please join our discord dedicated to engineering discussions in ME:
https://discord.gg/VUMmkQe
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Train Parts Pulleys
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Since the train era in Medieval Engineer begun, many compromises had to be made in our designs due to lack of apropriate train parts: wooden wheels, sconces in place of headlights, etc. This is why Xaerthus' Rail & Air Industries' invested heavily in a brand new development branch, where highly skilled engineers work day and night on bringing you custom parts, carefully adjusted for your best railroad experience.

This mod adds metal versions of Peaceman's newest pulleys, specifically designed for train usage, though they will work as well in any mechanical contraption. The current release features 7 sizes, each in three variants: left, right and center. The first two ones can be hidden behind a plank inside a one block space:
  • .5
  • .75 New!
  • 1
  • 1.5 New!
  • 2
  • 3 New!
  • 4
When placing, look for the small arrows for orientation. If they point in opposite directions, the pulley will be a reversing one.

Important Note:
Due to a bug in the game, it is advised to add the pulleys only overground and to not make them connect two grids together when placed.
댓글 4개
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kcs123 2020년 12월 26일 오후 10시 49분 
@Xaerthus, thanks for additional info, if it is most simple way to make game more stable with just increasing mass, because of game engine limitations, leave it like that.

That axle on picture was fairly small, part of more complex mechanism. I have added it between more for aestetic reasons and I was catched by surprise why previously well balanced mechanism stopped working as expected by all sudden.

I was aware that additional mass might cause slowdowns, but I didn't expected that just one small block can cause such difference. I didn't encountered issues with pulleys connected with steam engines, but if they were part of controling system, that is something to be aware of and put in consideration in future builds.

Anyhow, thanks for info and taking time to look into it.
Xaerthus  [작성자] 2020년 12월 26일 오후 6시 06분 
@kcs123
The rpm loss is not caused by the pulley mass, or at least not directly. The reason it happens is because of how the physics engine of the game calculates grid inertia. Basically it takes the largest value from width, length and depth and treats the sub grid as a sphere of that size and the mass of the blocks combined. This simplification results in significantly more resistance to turning with mass increase, than it would be expected from real life experiences.

Now, the pulleys need to have such mass to add stabilisation to engine shafts when they are mounted onto them. Adding mass to grids connected through constraints, does strengthen those constraints.
Xaerthus  [작성자] 2020년 12월 26일 오후 6시 05분 
How to get rid of that issue though?
1. Use the shafts that come together with the wooden pulleys and refrain from making long axles.
2. Few wise people have made a fix that causes the grids to be calculated correctly. Though mind that it is applied through manually swapping files in the game directory and you won't be able to join most public servers (other than the PNL server it was made for). For more info, please join the PNL discord server:
https://discord.gg/YuJwhHS
kcs123 2020년 12월 26일 오전 7시 42분 
I like those pulley models because it allows direct attachment on catch block without need of extra 1 small block size between catch block and the rest of mechanism.

But, aren't those train pulleys a bit too heavy ? With like this and nothing connected elsewhere:
https://gtm.steamproxy.vip/sharedfiles/filedetails/?id=2335791763

RPM is halfed in comparison with this setup with only one train pulley:
https://gtm.steamproxy.vip/sharedfiles/filedetails/?id=2335795012

It was take some time until I figured out that difference in weight cause such large performance loss. Then I checked weigth of train pulley: 75 kg. While vanilla pulley size 1 weight is 5 kg.

I understand that there must be gamebalancing reasons somewhere between train and vanilla pulley, but shouldn't 15 kg vs 5kg be enough, instead of 75 kg ?