-
Posts
106 -
Joined
-
Last visited
Content Type
Profiles
Forums
Gallery
Events
Posts posted by Aleksei Domanov
-
-
several ways, for example, put it through using needle.
-
Serving machine arrived at home.
I plan to see the "attached" cd/dvd before I place my 1st question: what's the most simple thing to serve just for initial experience.....?
any thick by any thin :-)
-
may be you need to degrease it again?
-
sorry, misunderstood you :-)
what the chemical do you use for copper?
-
Well chemical blackening material works fine on copper stropped deadeyes. I don't know why, but i can't treat re-inserting to the chemical a couple of them after the soldering procedure. Perhaps that procedure somehow decreases the blackening purposes of the material?
solder is different material so needs different chemicals for blackening
-
I used it on San Juan - outstanding results.... top marks
-
- mort stoll, Beef Wellington, drtrap and 6 others
- 9
-
I've made prototype like pre-release and now looking how to make it cheaper. Too many acrylic - costs money. Hope to solve it within few weeks.
- gjdale and CaptainSteve
- 2
-
now I can make little announce - I'm on the way to make set of marking tools: main tool is laser vertical lines marker and as bonuses - WL marker and centre finder. :-)
-
Opps... Sorry, I missed this post
The problem was with our site (you couldn't use some symbols in both address and name fields), now we fixed it. Thank you for your help to solve this.
Your parcel is shipped out from our country on 3.09 and maybe still on the way as I can't obtain any data from Australian post. Sometimes it takes 7-10days, sometimes 30... Post is unpredictable...
Have you received PSU?
BR,
Alexey
-
All thanks go to Dr. Michael (Michael Bezverkhny) - I've just filmed :-)
-
this is another principle - like in ropewalk "Prosak" but "horizontal" method. Most used by model makers.
-
-
I'm talking not about gears but about spools with source threads. How do they spin in spool holders?
If you're going to make 4 stranded rope or cable you have to think about central core.
-
Dear Michael,
I share my experience as well :-) And I proud if I can help such great Master as You.
I mean to take care about even wound of thread on spool. If it's "soft" on one spool and "hard" on another - you definitely get "jammed" final rope.
Another "cure" - lower the speed of head and takeup block.
Alexey
-
And I see you have problem with quality of "twist".
item 4 - It depends on how even strands leave spools.
My experience on this matter says - you do not need to brake spools. I made a lot of experiments and lot of versions of spool holders...
even in such way :-))
and you need to give attention how thread is lay on spool.
any questions - you're welcome! you see, I sell version 2.5 and spent several years to make it...
-
Dear Michael,
looks fantastic! But you forgot why you have to use idle gears...
http://modelshipworld.com/index.php?/topic/5396-domanoff-workshop-planetary-ropewalk/#entry156085
Item 1
Because thread is not wire, it's non-deformable. You have to "unwind" each thread while they wind one around another.Alexey
PS Using pinion to drive solar disk could increase noise dramatically...
-
BTW,
item1 - this is the main idea we use in ropewalk Prosak.
1 step - you make big "unwind" tension in strands
2 step - leave strands and let then rotate freely to wind in rope
how much you make "unwind" tension - so tight you'll get rope
-
First of all: THANK YOU VERY MUCH, BOB, FOR THIS REVIEW !!!
And let me explain some ideas I used in this ropewalk (sorry for my english...).
1. Ratio of "sun" and "moon" gears have a value, "Planet" gears are used only to reverse rotation of "moon" gears and their size may be any. sun:moon = 2:1. Why? Take a look at pic:
Because thread is not wire, it's non-deformable. You have to "unwind" each thread while they wind one around another. Otherwise there will be tension in final rope which will try to unwind. How many turns? Two for one turn of all threads (look at the picture).
Now if you put mark on spool holder and make one turn of all system you'll see mark makes two turns. One around "moon" shaft + one around main shaft. That we required.
2. Central core. Thank you, Bob, for good idea! Can I use it in my future machines?
When do we need central core? Let's take a look at pics:
This is 3-strand rope. You may see - everything is ok, all strands lay in their places. You may need central core (made from very thin wire) if you'd like to "form" rope as you like. Diameter of this core shouldn't be more than 0.155 * R.
This is 4-strand rope. You HAVE TO add central core, otherwise strands will try to be in "center" of the final rope.
3. Quality of the resulting rope.
Quality depends on angle in which strand goes into resulting rope in "wind point".
Big angle (red) - tight rope, small (blue) - loose. Should be around 45 degrees (green).
"Wind point" position depends on takeup block speed.
BUT. There is one trick...
Using cross bar (guide bar) you may make this "wind point" at any distance from ropewalk! Look at pic. You may see, 45 degrees angle depends not on position of guide bar but on... hole in guide bar! Even not on hole as it is but on the front point where strand "breaks"...
You may see on photo - I use different types of guide bar:-)
4. Quality twist, without whorls. It depends on how even strands leave spools... If one goes jerky - wind point jumps and final rope has whorls.
-
-
Dear Tom,
hope you've got lot of pleasure while playing with it :-)
seriously - any questions and help from my side - you're welcome!
cheers,
Alexey
-
In 2005 I made a lot of experiments and wrote article about this, but in russian.
Most of that results I put at the end of this manual
Prosak - User's Guide, v. 2.1.pdf
Full version of article with graphs (at the end) you may find here
http://www.shipmodeling.ru/content/tooling/detail.php?ID=302
(try to use google to translate from russian to english...)
-
-
Dear Brian,
many thanks for such words!
Dear Larry,
answered in PM
HMS Snake by drtrap - Caldercraft
in - Kit build logs for subjects built from 1751 - 1800
Posted
no , I do not use glue.
1. make a knot
2. start to serve over this end
let me know if you need pic, photo or vid of this.