Re: Puma Sd.Kfz. 234/2 Metal Origin 1:16 WIP
Posted: Sat Nov 21, 2020 9:44 pm
I haven't updated this WIP in a long time, I apologize
90 minutes to turn in one direction, another 90 in the opposite direction. Slow as a sloth. Now it runs smooth and silky like a baby's butt:
Presentation of the sides:
We install the new half-shafts, all 8, the springs are mounted ....... feed a few volts and ....... gears that clench, threaded grains that jump, shafts that turn in vacuo. Very beautifull. Want to set it on fire: 100.
But calm is the virtue of the strong and after the initial dismay it is necessary to understand what happened. Let's investigate:
let's see what happens by removing the spring:
without the spring the problem is reduced. The word passes to the experts: two quick glances and the sentence arrives: the drive shafts are too long, they point.
how do they point? How can I shorten them? Let's start with an idea that is as crazy as it is unhealthy which, however, has the result:
Among other things, the paint we applied peels off, plastically horrible. It must be removed. The power of Chante Claire:
Let's throw Vallejo and go back to mom Tamiya:
The subgroups are assembled:
Two problems emerged during testing:
- the bevel gears cannot stay in position with only the threaded dowel. This is fine for twisting, but under stress the gear tends to retreat on the shaft. It must be shimmed with washers and shims.
- the M2 x 2.5 threaded dowels are small and when they are screwed into the groove in the shaft it is more the part of the grain that is in the shaft than that which engages in the bevel gear. Too short. They must be longer.
If there are no big problems for washers and washers, M2 threaded dowels are, in Rome, impossible to find. In 10 days the precious material arrives from Germany
Determining the thickness value is a painstaking pharmacist's job but the day looks promising:
let's be brave and give power:
We move on to the second axle, the most difficult one, the one under the transmission:
at the end of the day we get to install the third axle. Everything works. Tomorrow we should conclude with the fourth and last axle.
Meanwhile the artist who paints the sketches for me has completed the work on the last two that I had brought to do:
Max Wunsche
90 minutes to turn in one direction, another 90 in the opposite direction. Slow as a sloth. Now it runs smooth and silky like a baby's butt:
Presentation of the sides:
We install the new half-shafts, all 8, the springs are mounted ....... feed a few volts and ....... gears that clench, threaded grains that jump, shafts that turn in vacuo. Very beautifull. Want to set it on fire: 100.
But calm is the virtue of the strong and after the initial dismay it is necessary to understand what happened. Let's investigate:
let's see what happens by removing the spring:
without the spring the problem is reduced. The word passes to the experts: two quick glances and the sentence arrives: the drive shafts are too long, they point.
how do they point? How can I shorten them? Let's start with an idea that is as crazy as it is unhealthy which, however, has the result:
Among other things, the paint we applied peels off, plastically horrible. It must be removed. The power of Chante Claire:
Let's throw Vallejo and go back to mom Tamiya:
The subgroups are assembled:
Two problems emerged during testing:
- the bevel gears cannot stay in position with only the threaded dowel. This is fine for twisting, but under stress the gear tends to retreat on the shaft. It must be shimmed with washers and shims.
- the M2 x 2.5 threaded dowels are small and when they are screwed into the groove in the shaft it is more the part of the grain that is in the shaft than that which engages in the bevel gear. Too short. They must be longer.
If there are no big problems for washers and washers, M2 threaded dowels are, in Rome, impossible to find. In 10 days the precious material arrives from Germany
Determining the thickness value is a painstaking pharmacist's job but the day looks promising:
let's be brave and give power:
We move on to the second axle, the most difficult one, the one under the transmission:
at the end of the day we get to install the third axle. Everything works. Tomorrow we should conclude with the fourth and last axle.
Meanwhile the artist who paints the sketches for me has completed the work on the last two that I had brought to do:
Max Wunsche