[MrWhite]

Unslinga posted:

So basically now, you have a working 1/10 reduction scripted gearbox which works without spazz?

Oh you, I'll do anything to get that ;)

I mean, I'll just post the code here, since it's not that complicated. I'm not going to post the exact code I used for that truck, since it was about twice as long, controlled the steering and brakes as well, and was much more poorly written. There's still some slip so it's not a constant 1/10, but it works well enough for a transmission.

@name E2 Transmission
@inputs [Engine OutputShaft]:entity ShiftUp ShiftDown
@outputs Gear RPM Ratio Force
@persist Ratios:table Force Modifier RelativeForce
@trigger ShiftUp ShiftDown

if(changed(ShiftUp)&ShiftUp&Gear<Ratios:count()){Gear++, soundPlay(0,0,"/engines/trans/default_shift.wav")}
if(changed(ShiftDown)&ShiftDown&Gear>-1){Gear--, soundPlay(0,0,"/engines/trans/default_shift.wav")}
runOnTick(1)

Ratios=table(0.1,0.5,1.25,2)
RelativeForce=50

RPM=abs(OutputShaft:angVel():yaw()/360*60)
Force=(OutputShaft:angVel():yaw())-(sign(Gear)*Ratio*Engine:angVel():yaw())
Ratio=Ratios[abs(Gear),number]
Modifier=sign(Gear)*RelativeForce/Ratio

Engine:applyTorque(vec(0,0,Force*Modifier*Ratio))
OutputShaft:applyTorque(vec(0,0,-sign(Gear)*Force*Modifier))

Of course, all you have to do is increase the weight on the engine crankshaft and the output shaft connected to the drive wheels. That will let you increase the RelativeForce, which will ultimately give you less slip and better response. Just note that both of the props that end up getting linked and wired into the expression should rotate on their respective local Z axis, or you'll have to change around lines 15, 19, and 20 and maybe line 14 to properly detect the correct axis of rotation.

It's pretty simple once you get to understand it.

[Unslinga]

My WIP beetle.

MrWhite posted:

I mean, I'll just post the code here, since it's not that complicated. I'm not going to post the exact code I used for that truck, since it was about twice as long, controlled the steering and brakes as well, and was much more poorly written. There's still some slip so it's not a constant 1/10, but it works well enough for a transmission.

@name E2 Transmission
@inputs [Engine OutputShaft]:entity ShiftUp ShiftDown
@outputs Gear RPM Ratio Force
@persist Ratios:table Force Modifier RelativeForce
@trigger ShiftUp ShiftDown

if(changed(ShiftUp)&ShiftUp&Gear<Ratios:count()){Gear++, soundPlay(0,0,"/engines/trans/default_shift.wav")}
if(changed(ShiftDown)&ShiftDown&Gear>-1){Gear--, soundPlay(0,0,"/engines/trans/default_shift.wav")}
runOnTick(1)

Ratios=table(0.1,0.5,1.25,2)
RelativeForce=50

RPM=abs(OutputShaft:angVel():yaw()/360*60)
Force=(OutputShaft:angVel():yaw())-(sign(Gear)*Ratio*Engine:angVel():yaw())
Ratio=Ratios[abs(Gear),number]
Modifier=sign(Gear)*RelativeForce/Ratio

Engine:applyTorque(vec(0,0,Force*Modifier*Ratio))
OutputShaft:applyTorque(vec(0,0,-sign(Gear)*Force*Modifier))

Of course, all you have to do is increase the weight on the engine crankshaft and the output shaft connected to the drive wheels. That will let you increase the RelativeForce, which will ultimately give you less slip and better response. Just note that both of the props that end up getting linked and wired into the expression should rotate on their respective local Z axis, or you'll have to change around lines 15, 19, and 20 and maybe line 14 to properly detect the correct axis of rotation.

It's pretty simple once you get to understand it.

What do you recommend the Engine and the OutputShaft to weigh? last time I tried to use this (previous version I think but different ratios) it kept spazzing on me...

[MrWhite]

Well, I can usually get by with 200 or so apiece. They should both weigh relatively the same, though, since the same forces are being applied.

[BBOOBBYY!]

car cummin rite up

[Jackpody]

Was working on this small 3 wheeler but GMod decided to crash before I got to save. Oh well, time to remake what I had. Wasn't too much, it's just generally annoying when GMod cocks up. Also I can't currently do this myself due to schoolwork, but I'd love to see another vehicle build competition here on Facepunch. Looking back at when we had the contraption section (been lurking here since some time back in 09) and I remember seeing monthly competitions. I haven't seen one for about 8 months which was the Jeep towing competition thing, right before the subsection closed. You know, stuff like "Make a vehicle which can do x with y requirements."

[Uncle Bourbon]

Jackpody posted:

Was working on this small 3 wheeler but GMod decided to crash before I got to save. Oh well, time to remake what I had. Wasn't too much, it's just generally annoying when GMod cocks up. Also I can't currently do this myself due to schoolwork, but I'd love to see another vehicle build competition here on Facepunch. Looking back at when we had the contraption section (been lurking here since some time back in 09) and I remember seeing monthly competitions. I haven't seen one for about 8 months which was the Jeep towing competition thing, right before the subsection closed. You know, stuff like "Make a vehicle which can do x with y requirements."

Competitions are cool. I've only been in one though, the coolest car competition (or something like that, can't remember the name). I got 2nd with my semi

[One Ear Ninja]

Ah, I remember the most innovative vehicle competition. Remember that a lot of competitions fall flat on their faces if you don't offer some kind of prize though. That's kind of why that one was so enjoyable, as the prize was a 5$ game on steam.
Shame I never got to enter one, as I was a horrible builder back then.

Edited:

But just about all of the entries were just amazing

[Uncle Bourbon]

Garry should make a "Creations and Contraptions" subforum where you can post anything you've built out of props in gmod.

i dunno, i just want the contraptions section back

[Jackpody]

Uncle Bourbon posted:

Garry should make a "Creations and Contraptions" subforum where you can post anything you've built out of props in gmod.

i dunno, i just want the contraptions section back

I made a 1200 word rant about how GMod General is clogged up and how much we fight for it being clean (especially us people from the contraption section and why we'd like our subsection back) in the Refugee Camp while I was banned. Looking back at it, it seems sort of silly. I tried the best I could but got dumbs. It actually does seem sort of dumb how much I fought for it. I tried my best though, guess we need more firepower.

It does seem very doubtable that we'd get it back though, we would need some sort of magical event to happen first. Guess we just have to move on and live with what we have.

Edited:

but oh god I would not mind it coming back.

[Unslinga]

Could we make a poll for people who want the old contraption thread? 20 - 30 votes and we get our subforum back?

[Jackpody]

I'd love to see that but we'd need Garry to agree on it first, which is highly optimistic sadly. We need to keep fighting though, I guess.
If it was going to happen though, only some selected people (x been here for a year) should be allowed to vote. Or else, we'd see people voting no for the sake of it.

Also quick question, is my avatar Michael Rosen with a pink background?

[Unslinga]

Jackpody posted:

I'd love to see that but we'd need Garry to agree on it first, which is highly optimistic sadly. We need to keep fighting though, I guess.
If it was going to happen though, only some selected people (x been here for a year) should be allowed to vote. Or else, we'd see people voting no for the sake of it.

Also quick question, is my avatar Michael Rosen with a pink background?

Yes it is........... is there some kind of deep meaning behind it?

[Amplar]

these maps own

[RedReaper]

Holos. The tops are all McStrutted because gmod doesn't like recording holos. Scalable too, and actually animates the sliding piston.

[Unslinga]

Amplar posted:

these maps own

Can't seem to find these maps anywhere...

RedReaper posted:

herp.

That's some nice shocks you have there Red.

[Toyokunari]

Amplar posted:

these maps own

Indeed, the maps looks to be very big also, so I hope its not gonna be laggy when I try them out.

[Amplar]

Unslinga posted:

Can't seem to find these maps anywhere...



That's some nice shocks you have there Red.

read the description

[RedReaper]

Unslinga posted:

That's some nice shocks you have there Red.

Thank you!

[Metacore]

Model = done (not sure about the paint/material)

[Sir Lulzalot]

Started working on some forcer-powered engines because thruster engines were really starting to grind my gears. I'd say its a success.



The best thing is I can drop it on the ground and let it sit there without fearing it destroying itself or flying off to one corner of the map. (There is a crank case, it's just faded out of view.) And they can be controlled using unmodified code for thruster engines. That's a bonus!

I can't wait to start on a larger one and make a car.

[ShadowPhoeni]

Oversized and overpowered heavy mech


with working holo gauges

[Jackpody]

my fuck, I had this dream about us working together as a team, then getting the contraption subforum re-opened. Literally the second I woke up, I knew it wasn't real. It could be a sign!


I need to come out more.

[MrWhite]

Been experimenting with hydraulics moving pistons moving crankshafts. Results in few noticable vibrations due to no forces pushing the block any way. This allowed me to make my all time favorite engine configuration in a form that is actually usable.



The only problem I'm having now is that the engine redlines much lower than my other engines. I'm nearly sure it's not a timing flaw, so it must just be the hydraulics being stupid.

[Sir Lulzalot]

MrWhite posted:

Been experimenting with hydraulics moving pistons moving crankshafts. Results in few noticable vibrations due to no forces pushing the block any way. This allowed me to make my all time favorite engine configuration in a form that is actually usable.

The only problem I'm having now is that the engine redlines much lower than my other engines. I'm nearly sure it's not a timing flaw, so it must just be the hydraulics being stupid.

Speaking of redlining, do you have issues with your flywheels spazzing out at over 1900rpm? Once I surpass 1900-2000 rpm my flywheel starts to wobble, and the whole engine will start to surge between 900-3000 rpm, depending on the kind of engine. Nothing I do seems to help the issue.

[MrWhite]

I never push my engines up over 1500.

[Calamity]

MrWhite posted:

Been experimenting with hydraulics moving pistons moving crankshafts. Results in few noticable vibrations due to no forces pushing the block any way. This allowed me to make my all time favorite engine configuration in a form that is actually usable.




The only problem I'm having now is that the engine redlines much lower than my other engines. I'm nearly sure it's not a timing flaw, so it must just be the hydraulics being stupid.

What is the order? That doesn't seem like 1-2-3-4-5.

[JDB]

MrWhite posted:

Been experimenting with hydraulics moving pistons moving crankshafts. Results in few noticable vibrations due to no forces pushing the block any way. This allowed me to make my all time favorite engine configuration in a form that is actually usable.


The only problem I'm having now is that the engine redlines much lower than my other engines. I'm nearly sure it's not a timing flaw, so it must just be the hydraulics being stupid.

I havent ever touched any engines in gmod but from that picture it looks like your timing is off.

[MrWhite]

Of course the timing isn't 1,2,3,4,5. That 'd just be silly. The order is 1,5,2,4,3, which is a proper balanced firing order for an Inline 5 engine. Any engine should never be timed to fire in sequence (I.E, 1,2,3,etc) because it creates unnecessary stress on the crankshaft. Balancing the power out like I did with that engine produces the least amount of stress on the crankshaft.

Edited:

Also, just to clarify, the operational redline for the engine is just shy of 1000 RPM. it would be nearly impossible to get that RPM out of an improperly timed engine.

[Calamity]

MrWhite posted:

Of course the timing isn't 1,2,3,4,5. That 'd just be silly. The order is 1,5,2,4,3, which is a proper balanced firing order for an Inline 5 engine. Any engine should never be timed to fire in sequence (I.E, 1,2,3,etc) because it creates unnecessary stress on the crankshaft. Balancing the power out like I did with that engine produces the least amount of stress on the crankshaft.

Edited:

Also, just to clarify, the operational redline for the engine is just shy of 1000 RPM. it would be nearly impossible to get that RPM out of an improperly timed engine.

Yeah, i know that it shouldn't be 1-2-3... Well on Inline 5's there is no opposite piston of each piston, so i didnt know how to balance it. That probably will help me. But surprisingly, i have made a V10 in past. It just had 1-2-3.. order and it was pretty much balanced. Have that on my youtube channel:

[RedReaper]

is there any particular advantage to the tiny tiny crankshafts under 600rpm?

[Unslinga]

Does anyone remember the boat mod thingy someone was working on ages ago?
Where you could stand on props and not fall off them, not gravity hull btw...

[Sir Lulzalot]

RedReaper posted:

is there any particular advantage to the tiny tiny crankshafts under 600rpm?

Not particularly. The main advantage that I've noticed was simply being able to make a smaller engine due to the smaller stroke of the piston. In my experience they also tend to be slightly less prone to slider spazz on the pistons. But using the 1x1 PHX shafts gives you an engine with much more torque "out-of-the-block" than the platexplate shafts. I would recommend the platexplate for high RPM engines with the intent of gearing it down using an E2 code similar to what MrWhite posted in this thread.

Also, MrWhite, on the topic of firing orders, is there a specific firing order you use for V8s/I4s? I've always had the sets of pistons which move in unison fire at the same time, but now I'm wondering if I can suck a few more RPMs/HP out of my engines.

And finally, does anyone know where I can get Wenli's Dyno? The only link I've found for it is dead, and the Autodyno on Garry'smod.org doesn't work above default game speed limits.

[Jackpody]

I tried to make a physical engine today, failed like usual. also won't bring it up anymore for now but today marks the half year mark for the removal of the contraption section. RIP.

[Sir Lulzalot]

Jackpody posted:

I tried to make a physical engine today, failed like usual. also won't bring it up anymore for now but today marks the half year mark for the removal of the contraption section. RIP.

If you would like, I could give you some help later tonight. (Probably around 7:30ish PM central time) Or some other time if it's more convenient for you.

[Guidness]

Stug III i made in about 5 days.
Put alot of detail on it etc and ended up in about 250 props.
http://www.youtube.com/watch?v=4gK0s...nd=1&lr=1&ob=0

[Toyokunari]

Guidness posted:

Stug III i made in about 5 days.
Put alot of detail on it etc and ended up in about 250 props.
http://www.youtube.com/watch?v=4gK0s...nd=1&lr=1&ob=0

I like that tank, I'm one of your viewers who saw that tank just randomly searching youtube.
Make a video out of it moving, would be cool!

[MrWhite]

RedReaper posted:

is there any particular advantage to the tiny tiny crankshafts under 600rpm?

The main advantage is stability, a higher attainable stable RPM, and an overall decreased vibration level. With this hydraulic engine I'm working with, there's a big difference in vibration with increasing crankshaft diameters.

I just find that, for what I do, the smaller diameter crankshafts can provide more than enough power for my needs. If you need more power, just scale it up. You can even use PA to place the ropes to keep the profile relatively the same, too.

Edited:

Sir Lulzalot posted:

Also, MrWhite, on the topic of firing orders, is there a specific firing order you use for V8s/I4s? I've always had the sets of pistons which move in unison fire at the same time, but now I'm wondering if I can suck a few more RPMs/HP out of my engines.

In Garrysmod, firing order does not dictate overall power, but rather stability and balance. For a V8, I typically let the front and rear pistons on one side fire, then let the middle pistons on that side fire 180 degrees later. I repeat that process on the other side, skewed 90 degrees out of phase, though. You're left with what s basically a flatplane V8, which features an extremely simple timing structure (two if(){}else{} statements, followed by two X=-Y statements) and a perfectly balanced, vibration free cycle.

[mastfire]

Guidness posted:

Stug III i made in about 5 days.
Put alot of detail on it etc and ended up in about 250 props.
http://www.youtube.com/watch?v=4gK0s...nd=1&lr=1&ob=0

the video and the tank is not in good lighting but the map needs to change

[Sir Lulzalot]

MrWhite posted:

In Garrysmod, firing order does not dictate overall power, but rather stability and balance. For a V8, I typically let the front and rear pistons on one side fire, then let the middle pistons on that side fire 180 degrees later. I repeat that process on the other side, skewed 90 degrees out of phase, though. You're left with what s basically a flatplane V8, which features an extremely simple timing structure (two if(){}else{} statements, followed by two X=-Y statements) and a perfectly balanced, vibration free cycle.

Well it looks like I've got it as good as it's going to get then, thanks!

[RedReaper]

Making some addons for this maybe in the future is my wip.