Marui Samurai 4WD - Another SilverTriple's journey...

The place for all things Marui.

Moderators: scr8p, klavy69

Dadio
Approved Member
Posts: 3774
Joined: Sun Apr 24, 2016 6:21 pm
Location: Guildford UK
Has thanked: 2110 times
Been thanked: 1896 times

Re: Marui Samurai 4WD - Another SilverTriple's journey...

Post by Dadio »

Looks great , really interested in how they grip and wear , do they feel like rubber or more like soft plastic ?
If a jobs not worth doing then its certainly not worth doing well.
A problem shared is a problem halved but an advantage shared is no advantage at all.

User avatar
silvertriple
Approved Member
Posts: 1509
Joined: Sun May 02, 2021 2:31 pm
Location: France, Isere
Has thanked: 554 times
Been thanked: 746 times

Re: Marui Samurai 4WD - Another SilverTriple's journey...

Post by silvertriple »

Dadio wrote: Mon Apr 03, 2023 7:15 pm Looks great , really interested in how they grip and wear , do they feel like rubber or more like soft plastic ?
They really feel like rubber... I was not expecting a result that good, actually... The 30 seconds run on a asphalt were definitely not enough to do a single trace of wear... And it grips nicely in the living room, just like proper tires, and that actually surprised me... They are soft, you can squeeze them like hotshot tires... The wear remains the question, but material cost is about 8 euros/tire, supports included (I'll get another run of that resin, to get an additional set of Samurai and Ninja tires)... And I may not have found yet the optimal way to orient the tire for the print... I'll find a time to do a proper test (and I also modify the tires so I can make sure they seat properly in the rim - as matter of fact, I checked the original set of tires I have and they have internal diameter slightly superior to the outside diameter of the rim : with 3D printed rims and tires, this is very easy to fix, actually...)...

I can see you are quite tempted by the experience already :-D
I buy kits to build and ru(i)n them :-)

Dadio
Approved Member
Posts: 3774
Joined: Sun Apr 24, 2016 6:21 pm
Location: Guildford UK
Has thanked: 2110 times
Been thanked: 1896 times

Re: Marui Samurai 4WD - Another SilverTriple's journey...

Post by Dadio »

silvertriple wrote: Mon Apr 03, 2023 7:44 pm
Dadio wrote: Mon Apr 03, 2023 7:15 pm Looks great , really interested in how they grip and wear , do they feel like rubber or more like soft plastic ?
They really feel like rubber... I was not expecting a result that good, actually... The 30 seconds run on a asphalt were definitely not enough to do a single trace of wear... And it grips nicely in the living room, just like proper tires, and that actually surprised me... They are soft, you can squeeze them like hotshot tires... The wear remains the question, but material cost is about 8 euros/tire, supports included (I'll get another run of that resin, to get an additional set of Samurai and Ninja tires)... And I may not have found yet the optimal way to orient the tire for the print... I'll find a time to do a proper test (and I also modify the tires so I can make sure they seat properly in the rim - as matter of fact, I checked the original set of tires I have and they have internal diameter slightly superior to the outside diameter of the rim : with 3D printed rims and tires, this is very easy to fix, actually...)...

I can see you are quite tempted by the experience already :-D
At 8 Euros per tire it's pretty cheap too , my printer may not have a big enough bed , the angle would need to be quite steep , I may have to create a rudimentary tire dimension model to see if I could fit one tire at a time .
If a jobs not worth doing then its certainly not worth doing well.
A problem shared is a problem halved but an advantage shared is no advantage at all.

User avatar
silvertriple
Approved Member
Posts: 1509
Joined: Sun May 02, 2021 2:31 pm
Location: France, Isere
Has thanked: 554 times
Been thanked: 746 times

Re: Marui Samurai 4WD - Another SilverTriple's journey...

Post by silvertriple »

I succeed to put 2 tires on the 7.6 inches of the printer screen in my case... You have to use heavy supports, and the get the tire tilted in any case. And you have to include at least a hole to avoid the suction cup effect...

if you want to know more abut the possibility you may head to thingiverse and download the tires of the Nichimo Spirit FF or the Hirobo Bearcat, and see if it enters in the bed, they are more or less the same size Samurai rear tires are OD 840x400 and fronts are OD 800x320 (it's written on it :-) ). A 2.2" standard size rear tire is about OD 880x360, I think... That may also give you some indications about the possibility to put it in the bed of your printer...
I buy kits to build and ru(i)n them :-)

Dadio
Approved Member
Posts: 3774
Joined: Sun Apr 24, 2016 6:21 pm
Location: Guildford UK
Has thanked: 2110 times
Been thanked: 1896 times

Re: Marui Samurai 4WD - Another SilverTriple's journey...

Post by Dadio »

silvertriple wrote: Tue Apr 04, 2023 6:41 am I succeed to put 2 tires on the 7.6 inches of the printer screen in my case... You have to use heavy supports, and the get the tire tilted in any case. And you have to include at least a hole to avoid the suction cup effect...

if you want to know more abut the possibility you may head to thingiverse and download the tires of the Nichimo Spirit FF or the Hirobo Bearcat, and see if it enters in the bed, they are more or less the same size Samurai rear tires are OD 840x400 and fronts are OD 800x320 (it's written on it :-) ). A 2.2" standard size rear tire is about OD 880x360, I think... That may also give you some indications about the possibility to put it in the bed of your printer...
Thinking about it I can just hold a tire up to the bed , looks like your printing at a 25° to 30° angle , pretty sure I'd be at 60° to 70° , at that angle it would need a lot of internal support and plenty on the treaded surface , still might be worth a try .
If a jobs not worth doing then its certainly not worth doing well.
A problem shared is a problem halved but an advantage shared is no advantage at all.

User avatar
silvertriple
Approved Member
Posts: 1509
Joined: Sun May 02, 2021 2:31 pm
Location: France, Isere
Has thanked: 554 times
Been thanked: 746 times

Re: Marui Samurai 4WD - Another SilverTriple's journey...

Post by silvertriple »

I had to put about 45° angles to put 2 tires on my bed... there is traces left on the threaded surface, but I don't really care much...
At this stage, I've not tried yet to find ways to remove the support more nicely... I need something for this and I'll explore this next...
I buy kits to build and ru(i)n them :-)

User avatar
Frankentruck
Super Member
Posts: 2311
Joined: Fri Feb 19, 2021 2:59 pm
Location: Texas, USA
Has thanked: 1373 times
Been thanked: 1519 times

Re: Marui Samurai 4WD - Another SilverTriple's journey...

Post by Frankentruck »

How good or bad is the tire balance?
Frankensteined RC10T3 / Franky Jr RC10GT-e (x2) / A+ stamp / Toy Story RC / Graphite replica / B1.5 BFG 5LTi / Clonewald / Hyper Hornet

"I love the effort, but it sure looks like you took the long way around to a tub again"

User avatar
silvertriple
Approved Member
Posts: 1509
Joined: Sun May 02, 2021 2:31 pm
Location: France, Isere
Has thanked: 554 times
Been thanked: 746 times

Re: Marui Samurai 4WD - Another SilverTriple's journey...

Post by silvertriple »

Frankentruck wrote: Tue Apr 04, 2023 12:11 pm How good or bad is the tire balance?
I don't have anything to be able to assess this... and it would require to get a perfect print, cleaned properly before curing (a two step bath of IPA is advised - I had only one during those first experimentations), plus removal of support being done properly (I clearly rushed this as I was not having proper tooling - I took them and removed them without any tools, just by traction)... The result is promising, but let's be clear, there is lot of post processing involved beside the printing... At least for my usage, balance won't impact (vintage fun runs more than race runs, actually :-) )
I buy kits to build and ru(i)n them :-)

User avatar
Frankentruck
Super Member
Posts: 2311
Joined: Fri Feb 19, 2021 2:59 pm
Location: Texas, USA
Has thanked: 1373 times
Been thanked: 1519 times

Re: Marui Samurai 4WD - Another SilverTriple's journey...

Post by Frankentruck »

I'm mostly curious if the wheels shake a lot if you hold it at full throttle. I can appreciate all the post processing needed and how difficult it probably is to end up with a good final result.
Frankensteined RC10T3 / Franky Jr RC10GT-e (x2) / A+ stamp / Toy Story RC / Graphite replica / B1.5 BFG 5LTi / Clonewald / Hyper Hornet

"I love the effort, but it sure looks like you took the long way around to a tub again"

User avatar
silvertriple
Approved Member
Posts: 1509
Joined: Sun May 02, 2021 2:31 pm
Location: France, Isere
Has thanked: 554 times
Been thanked: 746 times

Re: Marui Samurai 4WD - Another SilverTriple's journey...

Post by silvertriple »

Frankentruck wrote: Tue Apr 04, 2023 1:37 pm I'm mostly curious if the wheels shake a lot if you hold it at full throttle. I can appreciate all the post processing needed and how difficult it probably is to end up with a good final result.
I'm not sure it is that important. I just tried with a Lipo 2S at storage tension, full throttle : no visible shake... I'm not saying there is none, but it's not visible... And the rear are from my first prints, so with the visible deformation from the suction cup effect...

Edit : beside the fact it is not visible, I believe there is other things impacting more the behavior of a car than this...
I buy kits to build and ru(i)n them :-)

Dadio
Approved Member
Posts: 3774
Joined: Sun Apr 24, 2016 6:21 pm
Location: Guildford UK
Has thanked: 2110 times
Been thanked: 1896 times

Re: Marui Samurai 4WD - Another SilverTriple's journey...

Post by Dadio »

silvertriple wrote: Tue Apr 04, 2023 4:02 pm
Frankentruck wrote: Tue Apr 04, 2023 1:37 pm I'm mostly curious if the wheels shake a lot if you hold it at full throttle. I can appreciate all the post processing needed and how difficult it probably is to end up with a good final result.
I'm not sure it is that important. I just tried with a Lipo 2S at storage tension, full throttle : no visible shake... I'm not saying there is none, but it's not visible... And the rear are from my first prints, so with the visible deformation from the suction cup effect...

Edit : beside the fact it is not visible, I believe there is other things impacting more the behavior of a car than this...
If your running printed wheels as well there's more potential for balance problems , I got obsessed for a while designing and 3d printing spinning tops with turbines in them , looked like UFO's , idea being that the turbine would draw air in the top and out the bottom to give an air cushion underneath to make them spin very flat and stay flat till they virtually stopped , anyway long story but FDM printing rarely gave good balance because the slicer will align the layer shift point to the least visible position usually causing a heavy spot , it's worst on cylindrical objects as it will inevitably do a circle and change layer at the same point repeatedly , to avoid this is fairly easy as most slicers have a setting to randomise the layer shift point . This effect does not exist in resin printing as the whole layer is printed simultaneously .
If a jobs not worth doing then its certainly not worth doing well.
A problem shared is a problem halved but an advantage shared is no advantage at all.

User avatar
silvertriple
Approved Member
Posts: 1509
Joined: Sun May 02, 2021 2:31 pm
Location: France, Isere
Has thanked: 554 times
Been thanked: 746 times

Re: Marui Samurai 4WD - Another SilverTriple's journey...

Post by silvertriple »

Dadio wrote: Tue Apr 04, 2023 5:29 pm If your running printed wheels as well there's more potential for balance problems , I got obsessed for a while designing and 3d printing spinning tops with turbines in them , looked like UFO's , idea being that the turbine would draw air in the top and out the bottom to give an air cushion underneath to make them spin very flat and stay flat till they virtually stopped , anyway long story but FDM printing rarely gave good balance because the slicer will align the layer shift point to the least visible position usually causing a heavy spot , it's worst on cylindrical objects as it will inevitably do a circle and change layer at the same point repeatedly , to avoid this is fairly easy as most slicers have a setting to randomise the layer shift point . This effect does not exist in resin printing as the whole layer is printed simultaneously .
I always use random for the seam, specifically for the rims...
I buy kits to build and ru(i)n them :-)

Dadio
Approved Member
Posts: 3774
Joined: Sun Apr 24, 2016 6:21 pm
Location: Guildford UK
Has thanked: 2110 times
Been thanked: 1896 times

Re: Marui Samurai 4WD - Another SilverTriple's journey...

Post by Dadio »

silvertriple wrote: Tue Apr 04, 2023 6:24 pm
Dadio wrote: Tue Apr 04, 2023 5:29 pm If your running printed wheels as well there's more potential for balance problems , I got obsessed for a while designing and 3d printing spinning tops with turbines in them , looked like UFO's , idea being that the turbine would draw air in the top and out the bottom to give an air cushion underneath to make them spin very flat and stay flat till they virtually stopped , anyway long story but FDM printing rarely gave good balance because the slicer will align the layer shift point to the least visible position usually causing a heavy spot , it's worst on cylindrical objects as it will inevitably do a circle and change layer at the same point repeatedly , to avoid this is fairly easy as most slicers have a setting to randomise the layer shift point . This effect does not exist in resin printing as the whole layer is printed simultaneously .
I always use random for the seam, specifically for the rims...
I was sure you would but it's worth saying for anybody else reading this as its just useful information .
If a jobs not worth doing then its certainly not worth doing well.
A problem shared is a problem halved but an advantage shared is no advantage at all.

User avatar
silvertriple
Approved Member
Posts: 1509
Joined: Sun May 02, 2021 2:31 pm
Location: France, Isere
Has thanked: 554 times
Been thanked: 746 times

Re: Marui Samurai 4WD - Another SilverTriple's journey...

Post by silvertriple »

Yes I agree...
And there is way to much settings in slicer so the results is that you probably have not used all of them, let alone know all of them and what they are supposed to result in... But clearly, z-seam = random is a must for balanced parts in FDM. I will have to weight my tire+rim sets : I suspect they are lighter than originals...
I buy kits to build and ru(i)n them :-)

User avatar
silvertriple
Approved Member
Posts: 1509
Joined: Sun May 02, 2021 2:31 pm
Location: France, Isere
Has thanked: 554 times
Been thanked: 746 times

Re: Marui Samurai 4WD - Another SilverTriple's journey...

Post by silvertriple »

I ran the Samurai this afternoon for about 10 minutes... The tires grips and the behavior of the car is just normal... Full throttle, braking, turning, everything is as normal tires...


The tires still look good after the 10 minutes run...
Image

Conclusion : 3D Printed tires are viable...
I buy kits to build and ru(i)n them :-)

  • Similar Topics
    Replies
    Views
    Last post
  • MARUI SAMURAI 4WD #10
    by rojna » » in Marui Forum
    19 Replies
    6058 Views
    Last post by optimaforever
  • Marui Samurai...
    by Brandon G » » in Marui Forum
    19 Replies
    3666 Views
    Last post by naushad
  • Marui Samurai Help
    by ireg » » in Marui Forum
    43 Replies
    5073 Views
    Last post by DennisM
  • Marui Samurai
    by dahlelama » » in Marui Forum
    9 Replies
    1145 Views
    Last post by dahlelama
  • Marui Samurai build
    by eugine » » in Marui Forum
    12 Replies
    2155 Views
    Last post by Lonestar
  • Marui Samurai - for the track
    by dinglem » » in Marui Forum
    31 Replies
    4328 Views
    Last post by Dadio
  • a Marui Samurai to restore
    by cyberfox » » in Marui Forum
    12 Replies
    1870 Views
    Last post by cyberfox
  • Marui Samurai Purchase
    by mikedealer » » in Marui Forum
    17 Replies
    2170 Views
    Last post by civilguy

Return to “Marui Forum”

Who is online

Users browsing this forum: No User AvatarCommonCrawl [Bot] and 0 guests