Westlake Publishing Forums
October 26, 2020, 02:53:22 PM *
Welcome, Guest. Please login or register.

Login with username, password and session length
News:     REGARDING MEMBERSHIP ON THIS FORUM: Due to spam, our server has disabled the forum software to gain membership. The only way to become a new member is for you to send me a private e-mail with your preferred screen name (we prefer you use your real name, or some variant there-of), and email adress you would like to have associated with the account.  -- Send the information to:  Russ at finescalerr@msn.com
 
   Home   Help Search Login  
Pages: 1 ... 18 19 20 [21] 22
  Print  
Author Topic: 1:35 Bucket chain excavator Ertmer KB 1  (Read 28965 times)
Bernhard
Sr. Member
****
Offline Offline

Posts: 443



« Reply #300 on: July 26, 2020, 08:27:17 AM »

Now the chain support rollers must be mounted on the upper part of the bucket ladder, ...


* KB1 224.JPG (203.87 KB, 723x517 - viewed 62 times.)

* KB1 225.JPG (192.86 KB, 709x526 - viewed 54 times.)
Logged
Bernhard
Sr. Member
****
Offline Offline

Posts: 443



« Reply #301 on: July 26, 2020, 08:27:45 AM »

... then it can be installed in the frame.


* KB1 226.JPG (228.23 KB, 760x722 - viewed 61 times.)
Logged
Bernhard
Sr. Member
****
Offline Offline

Posts: 443



« Reply #302 on: July 26, 2020, 08:28:17 AM »

Then the chain support rollers are attached to the middle part of the bucket ladder.


* KB1 227.JPG (229.48 KB, 1106x326 - viewed 61 times.)
Logged
Bernhard
Sr. Member
****
Offline Offline

Posts: 443



« Reply #303 on: July 26, 2020, 08:28:44 AM »

On a piece of track the bucket chain excavator can be provisionally installed.


* KB1 228.JPG (215.63 KB, 850x541 - viewed 58 times.)
Logged
Bernhard
Sr. Member
****
Offline Offline

Posts: 443



« Reply #304 on: July 26, 2020, 08:29:29 AM »

The middle part of the bucket ladder is installed.


* KB1 229.JPG (206.03 KB, 680x1098 - viewed 62 times.)

* KB1 230.JPG (192.48 KB, 850x683 - viewed 58 times.)
Logged
Bernhard
Sr. Member
****
Offline Offline

Posts: 443



« Reply #305 on: July 26, 2020, 08:30:09 AM »

Now the chain can finally be pulled in for the first time. But I had to find out that the 4 pulleys at the joints of the bucket ladder are 0.9 mm too big. After I had made a suitable replacement, the chain could be pulled in completely.


* KB1 231.JPG (198.08 KB, 865x627 - viewed 58 times.)

* KB1 232.JPG (197.51 KB, 865x662 - viewed 67 times.)
Logged
Bernhard
Sr. Member
****
Offline Offline

Posts: 443



« Reply #306 on: July 26, 2020, 08:31:05 AM »

Now also the levelling piece can be finished. The carrier for the deflection rollers must be positioned so that the closed chain has the correct pre-tension.


* KB1 233.JPG (196.59 KB, 694x597 - viewed 54 times.)

* KB1 234.JPG (198.59 KB, 694x509 - viewed 57 times.)
Logged
Bernhard
Sr. Member
****
Offline Offline

Posts: 443



« Reply #307 on: July 26, 2020, 08:31:30 AM »

It fits!


* KB1 235.JPG (228.35 KB, 964x725 - viewed 60 times.)
Logged
Bernhard
Sr. Member
****
Offline Offline

Posts: 443



« Reply #308 on: July 26, 2020, 08:31:56 AM »

This allows the levelling piece to be painted and completed, ...


* KB1 236.JPG (229.06 KB, 794x835 - viewed 58 times.)
Logged
Bernhard
Sr. Member
****
Offline Offline

Posts: 443



« Reply #309 on: July 26, 2020, 08:32:24 AM »

... and then installed.


* KB1 237.JPG (224.07 KB, 935x734 - viewed 63 times.)
Logged
Bernhard
Sr. Member
****
Offline Offline

Posts: 443



« Reply #310 on: July 26, 2020, 08:33:04 AM »

Finally, the adjusting ropes for the bucket ladder and the levelling piece are mounted. These are also made of 0.27 mm stainless steel.

And with that the bucket ladder excavator is finally finished!


* KB1 238.JPG (227.16 KB, 791x733 - viewed 68 times.)
Logged
Bernhard
Sr. Member
****
Offline Offline

Posts: 443



« Reply #311 on: July 26, 2020, 08:33:34 AM »

On closer inspection of the photos, I saw that the ropes are partly not lying correctly on the pulleys and the rope drums. This will of course be corrected. Furthermore I will patinate the ropes.


* KB1 239.JPG (228.47 KB, 918x690 - viewed 65 times.)
Logged
Bernhard
Sr. Member
****
Offline Offline

Posts: 443



« Reply #312 on: July 26, 2020, 08:34:01 AM »

The only downer: I decided with a heavy heart to remove the chain drive. In fact, the chain is very difficult to pull through the guides due to the low clearance. The risk is too great that it will tear through the operation.


* KB1 240.JPG (227.86 KB, 777x583 - viewed 71 times.)
Logged
Bernhard
Sr. Member
****
Offline Offline

Posts: 443



« Reply #313 on: July 26, 2020, 08:34:25 AM »

If the model is now unfortunately not functional, it is at least absolutely scale. On this scale it is difficult to meet both requirements at the same time.


* KB1 241.JPG (205.03 KB, 850x638 - viewed 65 times.)
Logged
Bernhard
Sr. Member
****
Offline Offline

Posts: 443



« Reply #314 on: July 26, 2020, 08:34:56 AM »

The project has kept me busy since April 2017, with some more or less long interruptions.


* KB1 242.JPG (221.86 KB, 879x660 - viewed 65 times.)
Logged
Pages: 1 ... 18 19 20 [21] 22
  Print  
 
Jump to:  

Powered by MySQL Powered by PHP Powered by SMF 1.1.13 | SMF © 2006-2011, Simple Machines LLC Valid XHTML 1.0! Valid CSS!