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05-20-2009, 11:30 AM | #21 (permalink) |
HF Support
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No worries
I actually went through the parts list for all the Joker models. Only the Joker 3 and Maxi Joker 3 shaft and belt drive (not the 3DD) use that gear set. None of the earlier models use those gears.
I would not hold up your purchase at this point. They are already producing the new (smaller) gears. Any new kit purchased now will have the correct gears. Revolution Models does not inventory these models (so they told me). If you get one from them, it comes from Minicopter after you place the order and, I'm confident it would have the correct gears and frames. I don't know if Joker-USA holds inventory. You would have to ask them. If they do, make them get you the corrected gears and check the frames before they ship it. It is a great design and I'm sure I will love it. They just had a few little manufacturing issues to work out. I should have the new gears in the post when I get home from work today. I plan to use the MJ3 in the advanced heli training I am doing this Friday to Sunday. It should be fun to learn autos on that thing. |
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05-20-2009, 04:19 PM | #22 (permalink) |
Registered Users
Join Date: Jan 2008
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joker-usa will not be carrying minicopters soon. They certainly don't have the later model (3 version). I believe they are just getting rid of their stuff. Minicopter-usa is the new US dealer. Rael is the owner and is also a freak here doing the AP stuff as well. I'm interested on a Joker 3 and it appears I will be ready to pull the trigger as soon as it's ready here in the US. According to Rael (minicopter-usa) and Gerd, it should be available here in about 2 weeks. Gerd has also recommended to buy from minicopter-usa since Rael will be very meticulous with the kit. The Maxi-Joker 3 is avilable at minicopter-usa but not the Joker3, sadly.
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JR X9303 TREX 500, TREX450, Joker 3 (almost ready),Typhoon3D, EZ* FPV, Stryker (Acromaster and EZG still in box) |
05-20-2009, 05:01 PM | #23 (permalink) |
Join Date: May 2008
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Well, considering Rael had no idea about the new gears when I called him, I think I am going to hold out until this issue is fully addressed by minicopter.
Rael did know about the melting gear issue and suggested that if I have this issue with my kit I should file down the main gear. You would think the only US Dealer would know about these new gears. AJ |
05-20-2009, 05:25 PM | #24 (permalink) |
Registered Users
Join Date: Dec 2006
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I need clarify the main gear. With any helicopter the gear mesh needs to be correct. With the Joker 3 the tolerance is very small for adjusting. If the mesh is too tight, you can file the bolt hole slightly to adjust the mesh, NOT the gear. I hope this clarifies this matter.
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05-20-2009, 06:33 PM | #25 (permalink) |
HF Support
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Official word
You can file the holes in the frames for the first-stage drive shaft bearing blocks and tail drive bearing blocks by 0.2 mm or, get the new smaller main and tail drive gears.
I would NOT file the pinion. I am waiting for the new gears as I did not want to adulterate the frames. |
05-20-2009, 09:48 PM | #26 (permalink) |
Registered Users
Join Date: Apr 2009
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The new gears will be included with all the new kits shipping. Any existing kits will have the gear replaced at no cost.
Thanks Rael |
05-21-2009, 09:16 AM | #27 (permalink) |
Registered Users
Join Date: Jan 2008
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Rael,
Please save me a X-era motor with my kit. I understand the motor will arrive a week before the kit so save me one, thanks.
__________________
JR X9303 TREX 500, TREX450, Joker 3 (almost ready),Typhoon3D, EZ* FPV, Stryker (Acromaster and EZG still in box) |
06-25-2009, 05:17 AM | #28 (permalink) |
Join Date: Aug 2008
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Maxi J3 as a Scale Heli machanic.
This Maxi Jocker seems to be the easiest dolution for my Scale Heli. I can fly it and tune it while I built & paint the Scale fuselage. I don’t have to assemble everything before I fly the heli.
I understand that the “tail & boom” version, with a good 12s 5000 mA pack, COMPLETE flying weight, WITH Radio, is around 5 Kg. is it Right ? Curent consumption seems quite low. I was told that average flying cunsumption is 300 mAh/minute at 5 Kg: This mean, with a 5000mA Pack, the trainer version at 5 Kg can fly 13 – 14 minutes flight + 20% reserve ( 4000 mA / 300 mA). is it Right ? Has someone mesured curent cunsomption or flying time under 8 Kg ? Is there a more “scale looking” flybar less head than the one I can see on the pictures ? (this V shape is not really scale ) I could not see from the picture if the Main transmission is only Belt driven or Belt + secondary pinion ? Are several rations available to fine-tune the heli ? Is 800 mm blades & 12 s the best config for maximum flying time under approximately 8 kg ? Can someone recommand a Scale fuselage that fit the Maxi Jocker 3 , and that is VERY light (the scale fuselage don’t need to be very strong since the Maxi-jocker is a complete helicoptere and not only a mechanic that goes inside a fuselage). Thanks for your answers Bertrand |
06-25-2009, 06:15 AM | #29 (permalink) |
HF Support
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Some answers
I have been flying a MJ3 with the shaft driven tail for about a month. I run 11s 4200 packs and fly sport type; Figure 8s, flip, roll, and loop. I get 8 minutes @ 90% MAH used.
I have not measured the weight but other than balast in the nose (it is very tail heavy), it is stock. I will pull a graph from the Eagletree eLogger tonight if I have time and post it in this tread. That V head is NOT the one I got. You can see the hub I got here: conversion set ``V-Stabi`` Joker/Maxi-Joker Scroll down to assemble number 852. The drive system runs a belt from the motor to the first-stage drive shaft. On the first-stage drive shaft there is a steel pinion which drives the nylon main gear. The only adjustment to the drive ratio is the motor pinion (actually a pulley) size. They run from 12 to 17 teeth giving you ratios as follows: 13.6:1 (12), 12.5:1 (13), 11.6:1 (14), 10.8:1 (15), 10.2:1 (16), 9.6:1 (17). I run the Kontronic Pyro motor. I cannot run 12s since the head speed would be too high for 800mm mains. With a lower Kv motor you can run 12s and that would probably be a good choice for a heavy model. |
06-25-2009, 06:47 AM | #30 (permalink) |
Join Date: Aug 2008
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thanks a lot for those usefull answers. I am happy to see that the " V " shaped Head is not the only flybarless solution.
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06-25-2009, 06:53 AM | #31 (permalink) |
Registered Users
Join Date: Jan 2009
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I would be interested to fly a Maxi joker powered by A123 / LiFE battery packs. Anyone of you have that kind ot setup? What would you recommand to adapt MJ3 with A123 batteries?
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06-25-2009, 07:55 AM | #32 (permalink) |
HF Support
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They sell a big battery kit for A123
Minicopter has what they call the Option: big battery tray instead the normal one (f.e. for A123 cells), option 2664.
While I don't know anyone currently flying that setup, as you can see, Minicopter does support it. |
06-28-2009, 03:25 PM | #33 (permalink) | |
Join Date: Aug 2008
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Quote:
I don't understand how with so many ratios available you cannot adapt the ratio to accept 12s Lipos without increasing the Headspeed ? What ratio are you using right now ? What motor are you using ? thanks |
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06-28-2009, 05:31 PM | #34 (permalink) |
HF Support
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According to Gerd
I spoke with Gerd about this issue.
I run a Kontronic Pyro. The Pyro is spec'd at 510Kv. However, testing has shown the Pyro actually is as high as 545Kv. Next problem is the Pyro has so much power the 12 tooth pulley does not have enough teeth bitting on the belt. I can't go less than 13 teeth which is what I have installed. The 800mm mains are not supposed to go over 1550 RPM. Even with my trottle curve at 70% my head speed is 1600 with the 11s packs. |
06-29-2009, 06:09 PM | #35 (permalink) |
Registered Users
Join Date: Jun 2009
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Using 12s for Maxi-Joker 3 the soon coming Pyro 30-14 will the better solution, the Pyro 30-12 is more for a 90 size Joker 3. I am curious if they will come out now with an 8mm shaft instead the 6mm.
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06-29-2009, 07:02 PM | #36 (permalink) |
Join Date: Aug 2008
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A new Pyro !
This is interesting! Buy I can't find technical infos about it. Do you know at least the WEIGHT and the KV of this new Pyro 30-14 ? |
07-02-2009, 07:18 PM | #37 (permalink) |
Join Date: Aug 2008
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BIG capacity lipo pack needed
Hello,
I need a BIG capacity Lipo Pack for a Large 8 kg Scale heli based on a Maxi Joker machanic. I am planing 20 minutes smooth flying, so it is a very low "C" rating need. I am hesitating between 10s-10.000mA pack and 12s-8.000 mA packs. But, searching the Lipos manufacturer web site, it seems that 12sHigh capacity are very hard to find without assembling 4 packs together while 10s packs can be done with assembling 2 packs only. - So, technically, is it better to use 2 packs 10s-5000 in parallel (to get 10s-10.000 mA) or to use 2 packs 6s-8000 in serial (to get 12s-8000 mA). Which solution is better / safer ? - And, for best efficiency of the motor, is it better to have 10s-10000 mA or 12s-8.000 mA ? - What LiPos manufacturer is recommended for those "Low "C" rating application) ? I can’t find any more sub 25C lipos. It looks like all manufacturer are now in the race for Highest “C” rating, which is not the correct solution for our application). So, which “light high capacity’ pack will you suggest ? Now, regarding MOTOR Choice: with 10s or 12s BIG packs, I wonder if a NEU 1915 2Y will not be better than the recommended Actro 32.4 Heli or 32.5 Heli. It's KV is right in between the ACTRO 32.4 and 32.5 --> Does someone has any experience with NEU 1915 in a big Heli ? Can they supply the motor with a 8mm shaft ? Also, does someone know the Difference between the Actro Heli and the Actro Heli MAX ? Thanks in advance thanks in advance Bertrand |
07-07-2009, 03:39 PM | #38 (permalink) |
Join Date: Aug 2008
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MaxiJoker V/S Aerotech comeback
does someone know how the Maxi joker compare with the Aerotech comeback (electric version) ?. They are booth 180 cm heli for aerial photography !
Most important for me (is it for scale application, NOT photo), which one has the best sound : the belt driven MaxiJoker or the "metal pinion in sealed enclosure" Aerotech ? Is the transmission in a sealed enclusure a real plus for mantenance (no dusts, no loose belt ) ? thanks in advance |
07-18-2009, 11:05 AM | #39 (permalink) |
Join Date: Aug 2008
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diameter on the Maxi Joker3 rotor's mainshaft ?
quick question: what is the diameter on the Maxi Joker3 rotor's mainshaft ?
thanks |
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