Kumbbl

Eurobricks Knights
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  1. it was never meant to be rant topic but only a neutral and objective judgement of the stock Porsche and its flaws and a constructive showcase what is to do to bring the mechanics to the same level as the gorgeous look of the - the target audience were mainly people who just want a full featured and working Porsche but do not know how to modify or do not want to study 30 pages of a MOD-topic with several MODs which do not automatically fit together... but never mind, feel free to do with the topic what you want to do...
  2. well, here we go - see this new topic: Its not a full blown PDF BI which contains jb70s BI and all integrated MODs but it is a detailed write up which MODs the Porsche contains and how to integrate all this into the base-package of @jb70 - with some links to my bricksafe-folder which containes many detail photos... I have never used LDD or other tools like this so i'm not able to generate such beautiful BI as jb70 but an experienced builder shoule be easily able to rebuild this Porsche. But maybe @jb70 is following us and our praisings and maybe he would be willing to enhance its BI and to integrate some of the MODs described there - i would assume it would not too much effort for an experienced BI-maker.... DayWalker, i'm also very neutral and i appreciate all your MODs but in case of the door locking i prefer that one of el Squatter because IMHO it is more clean and robust - based on springs is always prefereable compared to rubber bands - and your is also fixed by only one pin... and working inside door handles does IMHO not add much value - but do not misunderstand me: this should not downrate your its just my personal taste. keep your very good MODing work!
  3. I’m not sure if this deserves an own topic because there is already the MODs and improvements-topic for the 42056 Porsche (http://www.eurobricks.com/forum/index.php?/forums/topic/133743-42056-porsche-911-gt3-rs-mods-and-improvements/). But because that topic is after almost 30 pages quite cluttered and from time to time always the same complaints and questions about the flaws of 42056 came up I thought I could be worth to make a write up about a Porsche-package which is flawless full featured easy to rebuild preserving 100% the really gorgeous looks of the stock model moderate in additional costs based onto the incredible valuable work of @Didumos69 and its unofficial errata and some other MODs made by him Feature summary: If you apply all MODs listed below then you will get a Porsche with: Smooth and full working gear-train for a freely pushable car in all gears with and 100% reliable gear-shifting, no gearbox stalls anymore, correct gear sequence, no endless shifting Gear indicator at the dashboard for checking gear-state at a glance Realistic reverse-mode behavior of the center gear-mode-stick which prevents from engaging reverse-mode from all gears but first gear A new paddle-shifter module which has better and more realistic looks and slightly lighter operation Much better front-axle layout with strong enough suspension for the weight, preserved ground clearance, better geometry, less bump steer, better steering lock and ackerman steering A more rigid chassis which does not bent even without body A Hand of Good (HoG) for easy steering which results in much better playablity Very fast and easy removable (and of course attachable) bodyby just pulling (rsp. pushing) 11 red pins with bush: important for mechanics demonstration Lockable Doors Foldable bonnet holder for lockable bonnet in open state Filled black "hole" below headlights First of all some background, some remarks about the problems of the stock version of the Porsche, so about the reasons for such a topic. Luckiliy there are solutions for all problems of the stock Porsche: The first serious problem (gearbox and shifting) is completely fixed by the errata of @Didumos69 but the second serious one (front axle) is only fixed by his ultimate playable Porsche. But luckily again there is a Porsche out there which contains all these needed fixes and solutions (and some more) in one package which is available with full blown PDF-BI at rebrickable: @jb70 “Pimp up my Porsche”. BTW: with this package none of the above mentioned workarounds of TLG are necessary; they are completely thrown away. I would recommend everyone who wants to build the Porsche, who wants to build a flawlessly and very well working Porsche: Do not waste time by building the stock Porsche but start with the “Pimp up my Porsche” by @jb70 – and do all your own MODing onto this base… ;-) Well, here we go… The base package Go to rebrickable and get the BI for the “Pimp up my Porsche” MOD by @jb70 : http://rebrickable.com/mocs/MOC-8003/jb70/42056-pimp-up-my-porsche/#comments - The BI are free and also free from errors and flaws (there are only four very small exceptions, see below). Remark: You will need only 179 very common and mostly cheap parts in addition to the 42056 set to build this Porsche by jb70 – the overall costs would be about 20 to 30€ when you need to buy all additional parts – the real costs strongly depend on your spare parts inventory ;-) Just built this "Pimp up my Porsche" from jb70 - very enjoyable build, great instructions, incorporates all essential MODs you need to change the mediocre retail 42056 in a really great set, now also functionwise: stronger front suspension (retail is much too weak) with much better geometry with less bump steer und Ackerman steering - also with much better steering lock outstanding gear indexer (= 90 degree limiter) so gear-switching is now 100% reliable, so NO gearbox stalling anymore fixed step-5 error in the BI and in addition much better gear-arrangement of the whole gearbox for frictionless spinning of the complete drivetrain in all gears - the car now runs absolute free and smooth when pushed over the table - even in 1st gear preventing from endless gear-sequence (ie. now you can’t switch from 4 to 1 or from 1 to 4 corrected gear-sequence reinforced chassis so the chassis does not bend even without body HoG (essential for playablity) fast and easy removeable body (essential for demonstrating all the internal goodies) All fixes from the unofficial errata of Didumos69 are applied and in addition some important goodies of his ultimate playable Porsche - all that stuff compiled into great PDF-instructions, even for free! This means all problems I described above are fixed, Many Thanks @Didumos69 , many thanks @jb70 ! Well, there are 4 small errors rsp. recommendations for changes within the BI of jb70: 1. Error in BI: The blue 2L pin at step 59 (page 60) is not needed 2. Error in design and BI: The front-calipers are mounted in a faulty manner: they will rub against the inner side of the rims which prevents the car from running smoothly when pushed along. Solution: use a thin 1x2 liftarm and an axle with towball (instead of a pin with towball) for connecting the steering links to the hub and then build the front calipers as shown in the stock BI (page 152, step 212) and Bob will be your uncle – see pic below: 3. Recommendation: I recommend to omit the pin-clutch of Didumos69 - This means replace at step 38 (page 32) the two blue pins with one axle 4L --> the Didumos-errata-based jb70-Porsche does not need this clutch because the gear-box works now 100% reliable and it never stalls... in contrary: the clutch has the disadvantage that it can chips in when not necessary cause of too low friction of the pins! Without this clutch all is working like a charm and the pistons just fly ;-) But of course it is not necessary to omit this clutch - but then you should ensure that you use two pins with really high friction!. 4. Recommendation: jb70s Porsche already contains the wonderful MOD of Hispabricks for a fast and easy removeable body – but this can be optimized a little bit: Just fix the seats completely at the body so not connection between seats and chassis remains. For that do not mount the LBG 2x4 liftarm in step 19 (page 7) and all parts attached to it. They are not needed anymore. Mount the seats in step 47 at page 173 as shown in the pic below - see yellow circle. Now the body is even faster removeable and completely independed from the chassis (Thanks to @DayWalker for this small but valuable MOD). That’s all – apart from these small changes the BI of jb70 are errorfree: ready for a full and flawless working Porsche. When finished jb70s Porsche you have already a Porsche with smooth and flawless working features and with great playability. If you want to go further you can easily apply the following MODs which add a lot of realism and even better operation. Additional MODs on top of the “Pimp up my Porsche” base-package: Dashboard gear-indicator and realistic reverse-mode behavior: A well visible(!) gear indicator is IMO an essential feature for a sequential gear box. The following MOD offers exactly this and the needed mechanic is fully invisible: the needed mechanic is completely hidden behind the black curved panels of the center console. The stock behavior of the reverse mode is completely unrealistic because it allows to engage reverse regardless of the current active gear – IMO the requirements are as follows: reverse gear has a high reduction-ratio (in this case the same as first gear) engaging reverse (or neutral) mode is not possible if another gear than 1st is engaged, ie. it does NOT allow to shift from 4th (and also not from 3rd and 2nd) gear to neutral and back in reverse mode you are prevented from switching gears - so in reverse-mode you HAVE JUST ONE possible gear-ratio (see 1) This MOD implements exactly this. And it does it so that it is fully invisible and the needed mechanic is completely hidden behind the black curved panels of the center console. Here is a pic which shows both MODs built into the jb70-Porsche – you see that you don’t see anything unless the blue indicator at the dashboard – which is good in this case ;-). Here I have described both MODs in detail and also how to integrate into the jb70-Porsche: Here can you find a a lot of pics of the internals and instruction hints how to integrate both MODs into the jb70-Porsche base: http://bricksafe.com/pages/Kumbbl/MODs/porsche-42056/gear-indicator-and-reverse-gear-mode Here is an example pic of my bricksafe-folder so you can see how detailed the explanations are: Kudos and many thanks to @DayWalker who has developed both of these MODs. I have only integrated them into the jb70-Porsche and have done only some very small improvements. Both MODs can be very easily integrated in jb70's Porsche implementation. The few needed changes are very obvious and easy to manage. But you have to take into account them from the beginning, ie. from page 1 of the BI of jb70. All integration changes have to be done between step 1 and 23 (pages between 1 and 17) – especially the gear indicator can not be integrated later one – there are essential changes at page 1 of the BI of jb70 which can’t be done in no way later on! New paddle shifter unit with lighter operation and more realistic angled steering wheel @Didumos69 has developed an improved paddle-shifter unit: Well, it’s a quite clever mechanism which allows slighty lighter operations. But its main advantage is the better look cause of the angled steering wheel and the almost (because of inside mounted) invisible rubber bands. So this new paddle-shifter shifts an already very good and 100% reliable stock shifter (but only with Didumos’ innovative 90 degree limiter and indexer which is part of the jb70s package) to an almost perfect gearbox-shifter. Overall I rate it as very well designed and a nice addon which is really worth of building and integrating into the jb70-Porsche but IMHO it’s not a must have because the retails shifter contained in the jb70-Porsche works really well. Here are two pics of the new shifter module: Anyway, here I have described in detail how to integrate into the jb70-Porsche: Lockable doors and foldable bonnet holder: @el Squatterhas developed a very clean and nifty MOD for lockable doors. They are dead simple to integrate into the jb70-Porsche without any side effects. Myself has developed a very small but nevertheless usefull MOD – a foldable bonnet holder. The holder can be very easily locked in open state. I added this MOD because the opened bonnet with rear spoiler is the only way to get a glimpse of moving pistons when the body is mounted. But the bonnet+rear spoiler is too heavy for staying reliable open when the car is pushed around (because it is just hold by the friction of two pins). Therefore I added the following lockable holder. For locking the opened bonnet just pull the center joint a little bit backwards then it will be locked and the bonnet will stay opened. For closing just fully open the bonnet and the holder will automatically fold down when you close the bonnet. Here I have described both MODs in detail: Cosmetic: Filling the large black gap below the headlights Several people have complained about the huge black hole below the head-lights. Me too. Therefore I have added a dead simple fix for it: I really don’t understand why TLG has not applied this very cheap and also very obvious enhancement which make the model looking even more awesome. Summary: Overall I would rate this Porsche now as an excellent supercar with outstanding exterior and great and very well working functions which can easily compete with all of the supercar MOCs out there… And most important: A successfull build doesn’t depend anymore on your luck but only on your building skills and your ability to follow exactly and carefully the provided BI (supplemented by some photos for integrating some MODs into the base package of jb70) And If you want to give your Porsche the icing onto the cake I recommend you the wonderful stickers by Walter Spierenburg (see topic link below the pic) which really adds very much optical value – see pic below: @Jim: I have used a pic from your original topic - i hope this is ok but your photos are so good i could not resist ;-) - here is the original topic for this wonderful stickers (really high quality and fast shipping - i'm really hooked. Last but not least: Many thanks and kudos to @Didumos69, @jb70, @DayWalkerand @el Squatter which brought all these wonderful MODs to the table. I have only complied them into one - now full featured - model and integrated them into the great basis “Pimp up my Porsche” by jb70.
  4. i have noticed this also but they do not collide - you can get rid of the front 1x6 tile by using a 1x8 tile instead of the rear 1x6 tile. But i have refused this because i have also noticed that a males hand can only hardy switch the left paddle if drivers door is closed - regardless which paddle-shifter you use - so i always switch when divers door is open... well therefore i will not change the plate coverage for my Porsche - but of course your finding and hint is correct!
  5. funny - currently i'M working on a write up of exactly this as an own topic - i'm in the final state... ;-)
  6. IMHO the class method is not only the only one which allows auto-align (which is IMO a must feature for AWS with diferent modes) but it is also the only one which does not suffer from backlash which is immanent for gear-based solutions - and driving-ring-clutch.gear-based solutions (for changing mode) is a complete no-go cause of the fact that a clutch-gear based design alwas has at least(!) a full quarter turn backlash so the rear steering is often complete useless... But my hat off Appie, if you were able to integrate this linkage-monster into the gearbox-stuffed chassi of the Porsche without disrupting the ground clearance and the quite clean and rigid design of the chassis... IMHO real working and realistic RWS is not really possible with current lego parts (the class-method works only great because the steering angle is equal on both axles and has not to be minimal at the rear axle) - at least not for a race car cause of its minimal steering angle at the rear axle - regardless of the mode. The RWS of the good old 8880 is a nifty feature but it only works because it has only one mode - which is completely unrealistic .... therefore i built in a mode selector some years ago which is gear based but not driving ring based (cause of the too high backlash) but based on gear-switching like in old 8860 - for just two "gear-modes" the behavior is quite acceptable but of course sometime somehow rough ;-) but it works. But it has of course no autoaligning so it allows only mode-switch when all 4 wheels are straight forward... so overall it was a try but i have to admit it is not really a ready-for-production implementation ;-) what would be intersting: i heard rumours that TLG had a RWS solution in their beta-models which was not approved by Porsche - would be intersting to see this refused design of TLG.... But also your design would be intersting for me, Appie - could you provide some pics?
  7. problems can occur, but what is the real shame for TLG, that it would have been not necessary to go back to the drawing board and begin again from scratch... just take into account how fast guys like Blakbird (found during its build the step-5 error) and Didumos (who fixed within some weeks ALL drivetrain-problems and not with some clumsy and flimsy hacks but with very clean and robust and failsafe solutions) have fixed together the problems so a flawless model is the result. Do not tell me that guys like uwe wabra who e.g. has designed the wondeful and tricky gearbox of the 8258 crane truck - long time reference for best gear-trains - can not do the same if they get the time for it - it is IMHO completely impossible that these flaws didn't occur at TLG-internal tests - they knew the problems for sure but the risked to push the product to the market because the assumed that most of the customers would be blended by the gorgeous look of the car and want only put it onto their shelf - so the assumed the complaints would be manageable and would not result in lost future costomers.... so it was a weighting between risking unsatisfied customers and some costs when fixing there problems before going to market... they risked some unsatisfied customers but IMHO they were right that this this would not result in real problems - most of the people who bought the Porsche will buy for sure the next car in this "UCS"-technic series... ;-)
  8. funny, but this is one of just 4 very small "errors" i will describe - i'm working on a special posting for that - will post it probably today afternoon.... so: IMHO this 2L blue pin is not needed...
  9. this fix is included in jb70s package - you don't need the bushes - the best solution is to put nothing there, neither a pin connector as in the stock BI nor the bushes blakbird applied... excatly this is shown in the BI of jb70... but the only important thing is: do not use a pin connector there ;-) In general: The jb70-Porsche is errorfree (with one exception concerning the mounting of the front-calipers) and contains all of Didumos errata - the only thing i recommend to omit the pin-clutch of Didumos (s.a.) - apart fro that - just build it exactly as described... if something does not work it is probably your fault...the BI are proven to be correct...
  10. no, cool down ;-), you have nothing to dismantle - very easy to fix at each stage before the body is mounted! Please have a look at the BTW at the end of my previous post - i recommend you to fix now because later one it will be difficult! ;-)
  11. AFAICS at the first pic there are enganged both driving rings at the same time which results in a moving range of about 5 cm (as you have reported): this is possible because each red clutch gear allows a 1/4 turn of a driving ring before it is catched - and because two different gear ratios are enganged at the same time the whole gear train stalls after both red-clutch gears are catched... the further moving on of the car is possible because then the pin-clutch of Didumos chips in so the car can be moved ... in a sequential gearbox always just one driving ring is allowed to engange! Solution: check the orange liftarms 2x1 at both side of the indexer module - they must look like as in step 34 (page 28) of the BI of jb70... Caution: the must have an offset of 90 degree to each other, so when the left one (divers side) looks topwards then the right one must look frontwards. BTW: I strongly recommend to omit the pin-clutch of jb70/Didumos: This means replace at step 38 (page 32) the two blue pins with one axle 4L --> the Didumos-errata-based jb70-Porsche does not need this clutch because the gear-box works now 100% reliable and it never stalls... in contrary: the clutch has the disadvantage that i chips in when not necessary cause of too low friction of the pins!!
  12. I built the stock Porsche two times following standard BI (only applied Blakbirds step-5 fix and Attikas 180 degree change of the change-over-chatches of the the paddle-shifter unit): First time the paddle-shifter works quite unreliable with some gearbox stalls but the geartrain itself works more or less ok, i.e. was able to move the car in all gears without loud grinding but quite high resistance in first gear. Second time vice versa, now gear switching works quite well but now the gearbox shows same behavior as reported by Appie (and some others) only in sequence 1,3,2,4 it works, but not in correct order 1,2,3,4… BTW: I'am a very experienced builder so too low building skills can not be the reason ;-) After that I throw away the stock Porsche and switched to the errata of @Didumos69 as contained in jb70s Porsche: Now all is working flawlessly, now I could easily push the car over the whole dinning table and it drives freely in all gears without grinding, with very low resistance… Conclusion: despite its gorgeous looks the stock Porsche is crap (sorry) because its build is not deterministic: The design is so sensitive against smallest and most subtle changes (ie. Micrometers can make the difference) in connecting axle, gears etc… so even very experienced builders can not be sure to get a well working machine at the end. Paul Boratlko has reported the same for the build-sessions of himself and his wife. This means not, that it is impossible to build an somehow acceptable (not good but just acceptable!) working stock Porsche, but it means: first you need some luck for it and it does not only depend on your building skills and second you have at least to fix one serious error in the official BI: the step-5 fix of Blakbird (without this you will never get a working model). Both facts are not acceptable for a 299€ product (which on top is praised as ultimate from TLG herself) which should have passed the internal quality ensurance of TLG - but i assume this whole department was in a two year sabbatical during development of the 42056-set ;-). And it is also crap because the model fails in two of its main features (ie. more or less in all its features) when built as intended (by TLG) to be build: the gearbox and gear-shifting works unreliable (all the workarounds build in by TLG are a shame: the white clutch gear, the intended wrong gear sequence to reduce friction (first i could not believe it as TLG has confirmed this - really unbelievable), the 8th gear mounted onto a friction pin for the gear-shifting – all this would be not necessary if the design would be well thought and made) and the complete front-axle is a deficit at all: way too weak for the heavy weight, bad geometry, huge bump-steer, too small steering lock and no ackerman (which is a nogo for a model of this size). So the only purpose of the stock Porsche can be: Display it onto your shelf but do not touch and move it (maybe this was the main goal by its designers, who knows ;-) Luckiliy there are solutions: The first problem (gearbox and shifting) is completely fixed by the errata of @Didumos69 but the second one (front axle) is only fixed by his ultimate playable Porsche. But luckily again there is a Porsche which contains all these needed fixes and solutions (and some more) in one package which is available with full blown PDF-BI at rebrickable: @jb70 “Pimp up my Porsche”. BTW: with this package none of the above mentioned workarounds of TLG are necessary; they are completely thrown away. So I would recommend every one who wants to build the Porsche, who wants to build a flawlessly and very well working Porsche: Do not waste time by building the stock Porsche but start with this “pimp up my Porsche” by jb70 – and do all your own MODing onto this base… ;-)
  13. Next MOD I integrated in my “Pimp up my Porsche” of jb70 was the nifty and very clean designed door locking mechanism of @el Squatter: Here are step-by-step pics so no need to watch the video in the original post for rebuilding it (but the video is well made and also quite easy to follow, thank you el Squatter!) Several components are needed: How to mount them at the right door: Final: I modified the original MOD a little bit so the construction is more robust and rigid: instead of the simple axle 4L which connects the orange door handle with the black 3x3 thin liftarm I use a axle 4L with stop mounted from inside à so horizontal black beam spanning the whole door (which is build from some thin liftarms) is not only hold in place by 1 black pin as in the original design (which makes the construction quite flimsy) but at two points: the black pin and the stop of the axle 4L with stop. Furthermore I have exchanged the orange door lock (orange Bionicle 1 x 3 Tooth with Axle Hole) by a black one because IMHO a black one is quite invisible from outside whereas a orange one is an optical break of the clean clearance between door and rear car wing. Bonnet holder: The last MOD I added is my own MOD, but only a very small one: a holder for the bonnet with its rear spoiler. The holder can be very easily locked in open state. I added this MOD because the opened bonnet with rear spoiler is the only way to get a glimpse of moving pistons when the body is mounted. But the bonnet+rear spoiler is too heavy for staying reliable open when the car is pushed around (because it is just hold by the friction of two pins). Therefore I added the following lockable holder. For locking the opened bonnet just pull the center joint a little bit backwards then it will be locked and the bonnet will stay opened. For closing just fully open the bonnet and the holder will automatically fold down when you close the bonnet. Here come the pics how to build and mount: The holder (replace the black pin with friction at the central joint with a frictionless pin!) and the locking-module Mounting locking-module (direct below the black liftarm 9L): Mounting at the bonnet and final state when bonnet is open and locked in place:
  14. Well, i have build this new paddle-shifter of @Didumos69 and i want to share my impressions and as well some hints how to integrate this paddle-shifter with the “Pimp up my Porsche”-MOD of @jb70: The latter mainly for people not wanting to reinvent the wheel concerning “how to fix the flaws of the stock Porsche” but starting from a well designed MOD-package (with full blown PDF-instructions) which contains the most important fixes (based og the errata of Didumos) of the pitfalls of the retail set: The jb70s Porsche with its very good BI – all my MODs are based on top of this modded Porsche. First my impressions of the new paddle-shifter designed by @Didumos69: Well, it’s a quite clever mechanism which allows indeed slighty lighter operations. But its main advantage is the better look cause of the angled steering wheel and the almost (because of inside mounted) invisible rubber bands. So this new paddle-shifter shifts an already very good and 100% reliable stock shifter (only when used with the indexer of Didumos errata, which is contained in jb70s package) to an almost perfect gearbox-shifter. Overall I rate it as very well designed and a nice addon which is really worth of building and integrating into the jb70-Porsche but IMHO it’s not a must have because the retails shifter contained I the jb70-Porsche works really well. Now the needed changes to integrate the new paddle-shifter into the jb70-Porsche: I’m a great fan of building in modules with robust interfaces. So my goal was to modify the new paddle-shifter so it has the same interface as the stock shifter so it can be integrated with almost zero changes of the jb70-Porsche. Changes needed in the paddle-shifter itself (see yellow textbox in the pic below): Detail: The modified (only on the right side in the pic below) top cover of the new shifter casing: Detail: The modified bottom of the new shifter casing (just an LBG 3x5 Liftarm has to be mounted so it gets the same interface as the stock shifter of jb70s chassis): Now the new paddle-shifter has the same interface as the standard shifter (see pic below) in the BI of jb70 on page 51: Changes needed in the Porsche-MOD of jb70: Chassis, Page 53 and 54: As i mentioned in the yellow textbox in the first pic the 11L black liftarm is not appropriately fixed and braced on the shifter. For this we must slightly modify the HoG-module of jb70s chassis as shown in the pics below: and now this modified HoG-module mounted to the chassis: This are all changes needed at the chassis of jb70s Porsche Body, Page 262: For the body just a very small change is needed at the connection-point between the body and the left side of the paddle-shifter casing: Detail: detail: No other changes are needed - Especially none of the following instructions of Didumos69 are necessary for jb70s Porsche: "You have to check the position of the 12t thin bevel gear in the steering line. It could be that you need to move it to the other side of the 20t gear in your build. --> Not needed, the bevel gears are already correct. To fit this in, I extended Hispabricks removable body mod in the dashboard area. In the image below you see the stock parts to the left and my mod to the right. --> none of the extensions in the dashboard area mentioned by Didumos in his posting above are needed - only the changes i described above! When you install or remove the body, you need to pull the left paddle, otherwise the door hinges won't pass the LBG half bushes underneath the steering wheel. --> not necessary, the sides of the porsches are flexible enough so be slightly bent outside to pass the left paddle!" Thats all, now the new paddle-shifter can be used with jb70s Porsche-MOD! And this is the result - paddle-shifter of Didumos built into the jb70-Porsche (with gear-indicator of DayWalker):