Doug72

[GBC] Akiyuki Train System: mods and improvements. (New Modules)

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Through Rotary Dumper Train GBC (Update)

See earlier posting on this thread on page 11 for previous self contained version.

I have now modified this module to have seperate input and output thus allowing it to connect to other GBC modules.

Previous return return conveyor removed and a new dischage conveyor installed which is driven by the train reverser at the rotary dumper end.

High capacity ball lift driven by the other reverser, input probably needs re-building to meet GBC regs.
The module is quite long at 106 Cms.
Support structure for the conveyor to be improved.

PS still hunting from lost balls during testing !

Video:
A short video showing the revised module. 

 

 

Edited by Doug72

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On 11/23/2019 at 9:56 PM, Doug72 said:

Through Rotary Dumper Train GBC (Update)

See earlier posting on this thread on page 11 for previous self contained version.

I have now modified this module to have seperate input and output thus allowing it to connect to other GBC modules.

Previous return return conveyor removed and a new dischage conveyor installed which is driven by the train reverser at the rotary dumper end.

High capacity ball lift driven by the other reverser, input probably needs re-building to meet GBC regs.
The module is quite long at 106 Cms.
Support structure for the conveyor to be improved.

PS still hunting from lost balls during testing !

Video:
A short video showing the revised module. 

 

 

Nice work ~ That's improved modifications.

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I made a change to the train carts. I managed to put in larger gears.

This results in more torque. The trains are a little bit slower, but run more stable because of the lower speed, especially when docking into modules (in my setup).
I did a test run, just with 2 trains, the loader / unloader / switching modules for over 1,5 hours without any problems at all.

49332917477_4fee851542_c.jpg

49332917737_d98b6826b2_c.jpg

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Posted (edited)

A useful modification reducing speed by a factor of 0.6

Now modified the train unit (grey)  for my through Rotary Dumper to the slower speed and module now runs a lot smoother. Just had to remove a couple of flat tiles from the track as the 20T gears were catching on them.

49333277781_517e3edf2f_z.jpg

 

Edited by Doug72

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Remark of less importance : in the train's drivetrain, I'm surprised about the use of a single-bevelled Z20 gear on the motor's output for the meshing with the black Z12 double-bevel gear (by the means of the bevels) : isn't it less efficient (and a cause of teeth wear) than using a double-bevelled Z20 for a perfect spur meshing ? Or is it intended to force the Z12 gear closer against the single-bevelled Z20 on the wheels' axle (i.e. angular meshing made tighter) ?

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15 hours ago, Thierry-GearsManiac said:

Remark of less importance : in the train's drivetrain, I'm surprised about the use of a single-bevelled Z20 gear on the motor's output for the meshing with the black Z12 double-bevel gear (by the means of the bevels) : isn't it less efficient (and a cause of teeth wear) than using a double-bevelled Z20 for a perfect spur meshing ? Or is it intended to force the Z12 gear closer against the single-bevelled Z20 on the wheels' axle (i.e. angular meshing made tighter) ?

Thanks for those comments.
I followed @t0mster photo and modyfied one of my train units - slightly noisy but run OK on my Through Rotary Dumper module.

Originally I didn't think a Z20 double bevel gear would fit and that it would foul the thin Z20T gear on the wheel axle.
Now fitted a Z20T double bevel gear and now runs much smoother & quieter.

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i have come up with the idea of a sweeper loader like the one in akiyukis first video.

it can run of the reverser unit so no need for rcx control

 

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2 hours ago, 9v system said:

i have come up with the idea of a sweeper loader like the one in akiyukis first video.

it can run of the reverser unit so no need for rcx control

Nice idea , look forward to seeing it running.

 

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GBC Train: New Loading Module (MOC)  (Help)

I have built a new method of loading balls using a ball chute that swings up and down - see photos.

Works fine with the drive taken from the train unit reverser.
Timing is not required as chute movement stops as soon as train departs.
The ball chute is swung up & down by 4L crank arms driven via worm drive & a 40T gear.

There also is no need for a reverser for raising & lowering the ball chute.

However I have hit a big snag.
How to construct a suitable loading input hopper.

Due to the large swinging radius at the loading end, to use a standard 10 x 10 x 10 GBC hopper doesn’t line up as the bottom of chute swings away at its lowest point, leaving a gap of 4L for balls to jump across !!!

Have tried a sliding gate arrangement with partial success, but had problems with parts fouling each other.
Possible a semi rotating drum would work to control the ball loading.

Does anyone have some suggestions & ideas on this.
See photos which show the problem
.

49529910276_819dc6c67c_z.jpgIMG_7432

49529405008_42ec443be3_z.jpgIMG_7431

49529911471_e6ebc39e9f_z.jpgIMG_7435

49529406283_edcec9a938_z.jpgIMG_7425

Possible Sliding gate or rotary drum idea

49529939166_b07144d894_z.jpgIMG_7436

Edited by Doug72

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On 2/13/2020 at 2:02 PM, Doug72 said:

However I have hit a big snag.
How to construct a suitable loading input hopper.

Due to the large swinging radius at the loading end, to use a standard 10 x 10 x 10 GBC hopper doesn’t line up as the bottom of chute swings away at its lowest point, leaving a gap of 4L for balls to jump across !!!

Have tried a sliding gate arrangement with partial success, but had problems with parts fouling each other.
Possible a semi rotating drum would work to control the ball loading.

 

GBC Train: New Loading Module (MOC) (Success) (Video)

Success after a heck of lot of trial and error, with lots of adjustements !!

Gave upon trying to arrange a loading input hopper in line with the lifting chute.

Instead I mounted it at right angle for side loading onto the lifting chute.

At present only loads 3 balls per trip but train trip set for 3 cycles before releasing the train = 9 balls per train trip.

I hope to devise a input hopper cabable of 6 balls per cycle = 18 balls per train trip.

Input hopper meets GBC requirments with enentry 10 L high X 10L wide.

If made wider would be easy to increase ball rate. Needs further work before I will be satisfied.

i.e. it needs a faster running speed, its gear down 12/20 at the moment.

Video below: Hopefully it has downloaded OK, You Tube changes make it harder to download now.
If you can't see it please let me know.

 

 

Edited by Doug72

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On 2/15/2020 at 4:26 PM, Doug72 said:

If made wider would be easy to increase ball rate. Needs further work before I will be satisfied.

i.e. it needs a faster running speed, its gear down 12/20 at the moment.

Speed now increased by changing the 12/20 drive gears to 16/16.

Improved input hopper with control gate devised with throughput now tripled to an average of 9 balls per lift cycle = 27 per train trip.

Images how the various postions of the control gate during the transfer cycle which takes approx 15 secs per lift.

Ball ramp to the lift improved with measures to stop erant balls from escaping !!

This module could be used in a GBC loop without the train reverser by using a M or L motor to drive it.

An output collection hopper would be required.

49546883171_581ef40f12.jpgIMG_7447

 

49546883201_867ee36d3f.jpgIMG_7448

 

49546883181_5de4e5850b.jpgIMG_7449 

 

49546380463_e75e02a44d.jpgIMG_7450

 

 

Edited by Doug72

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