Model Engine Maker
Engines => From Plans => Topic started by: fumopuc on December 07, 2013, 02:16:03 PM
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Hi everybody,
here a quick summary of my current project.
I have bought a plan for a small steam engine which is valve controlled.
First idea was to make a compound from it and I have started my working drawings in CAD.
Than I decided to build a twin, and a two and more years project was born.
Here some pictures of the beginning of the hole mess.
Regards
Achim
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Looks another interesting engine. I look forward to seeing the progress.
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Achim, that looks like a great start to a wonderful project! I shall be following along.
I like your machining steps in the CAD drawings. Are you using CNC?
Simon
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Achim, that looks like a great start to a wonderful project! I shall be following along.
I like your machining steps in the CAD drawings. Are you using CNC?
Simon
Hi Simon,
I have started my CNC project last summer time. So in the meantime I am playing around with this, but at that time the pictures are made, CNC was not a part of my workshop.
Regards
Achim
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Hi everybody and Good morning,
here I would like to show some further progress of my 16 valve engine.
At the German ebay site there is a currently a model for sale, which looks like exactly build by the plan I have bought.
http://www.ebay.de/itm/380793945982?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649 (http://www.ebay.de/itm/380793945982?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649)
There is also a link to a youtube file showing the running engine.
Last year at Christmas my engine was nearly finished with the crank drive and cylinders so I could do the coating already and the final assembly of the cylinder assy with all sealing.
Regrads
Achim
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Very nice, Achim. Can you say what the blackening process is, and are those brass parts that you're blackening?
Simon
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Hi Simon,
yes it is brass, which will be black burnished.
Surface must be clean, no oil or grease and no other oxides on the surface.
Best results with my fluid are with 80 to 90 ° C.
I can offer you the link to a German company only, but the Google translater will help you.
http://www.saemann-aetztechnik.de/selbstaetzen/chemikalien/verschiedene/index.html (http://www.saemann-aetztechnik.de/selbstaetzen/chemikalien/verschiedene/index.html)
I am sure you will find similar stuff in the states.
Regards Achim
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second try to sent the post, the first one disappeared totally in the net, may be it is still in hands of the NSA........
Hi everybody, the next steps on my 16 valve engine. The cylinders are nearly complete now.
The ex-centers are made by SS. I lost 2 pieces and two 2mm taps from bad Chinese quality. After getting new ones from a good German tool supplier everything was fine again. I have made four 2mm threads in each part to adjust later at every possible position.
Then followed by all the tiny bits and pieces for the valve train.
Kind Regards Achim
(test with one picture only.....)
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That is looking very sexy :embarassed:, I have been promising myself a drop valve engine to add to my build list :naughty:
Jo
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I have been promising myself a drop valve engine
Jo
Me too.
I might have some exiting news to share in the not too distant future.
I dont want to give the game away just yet, but it has been well worth the wait.
Phil
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That is coming along quite nicely Achim. Should be a beautiful model in the end !!
Bill
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Hi Jo, the M34 piston drop valve mill engine plans are on my desk since 6 month. I have also all the old ME magazines from 1978 were the first documentation for this engine was printed. But after seen the MEM Corliss plans, I have done the decision to try this first.
Hi Bill thanks for your positive comments.
I have tried again now to download the remaining pictures but it does not work anymore.
Kind Regards Achim
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Keep trying Achim. I know the admins are working on these issues and they should be resolved soon.
Bill
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That's a stunning engine Achim and has a very nice appeal to it. I ilke.......... :ThumbsUp:
Simon the blackening can be done with Selenium Dioxide (selenium acid) for brass and copper.
Don
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Thanks Achim, I found the articale in ME. If any one else wants it it starts in volume 144 (1978) and these are the page numbers:
144/513, 635, 779, 878, 1038, 1162, 1284, 1472
145/54, 148, 262, 386, 518, 651, 768
:happyreader: Jo
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Hi Don, thanks for your positive comments. I have tried again to post the next pictures, but still not working. Regards Achim
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Achim
Can I be of assistance with the photo post issue?
How large are the files?
Dave
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trying again..
Dave you made me reflective. Thanks for that.
I think it was my fault, there was one picture between with 950 KB, this may be was the reason for not getting through. And this was the one I have tried to post alone also ?
Normaly all my pictures in this folder are less 130KB.
Kind regards Achim
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Dave you made me reflective. Thanks for that.
:Lol:
You know Achim....I am so glad I"M not the ONLY one who does that!
Glad it got sorted out! BEAUTIFUL!! :praise2: :praise2:
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Hi Achim
I am lurking in the background watching with great interest, this is going to be an impressive engine by any standards.
Do you have any thoughts on what finish you will apply to the engine room floor ?
Phil
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Yes Phil, I have. In your Agnes post is already a link to a company where to get the tiles I have used. 24x12x2 mm. On the site of "bloxxs" you can switch the language to English. Kind Regards Achim
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Amazing work, Achim. It looks fantatstic! :ThumbsUp: :ThumbsUp: :ThumbsUp:
Simon
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Hi everybody, here the next up date at this project.
Next to do was the machining of the rockers.
Than followed by my first way to do the eccentric rings. First batch of 8 pieces has been started.
Doing this work, I by my self reorganized more and more the sense of CNC in the model workshop.
To machine all on the rotary table was really a kind of pain.
This work was followed by the decision to disassemble everything again and start all the work which is needed for the final assembly.
So I have given the aluminum cylinder and fly wheel bearing brackets for an anodizing company and started the cosmetic work with the floor.
And a forgotten hole has to be made....
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This looks impressive Achim, very nice work. Will be keeping an eye on this one.
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Wow, that's a lot of eccentrics! What's happening in the first photo? Are you tumbling the parts for surface finish?
Simon
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Hi Simon, in the first picture is my tumbler working. It is a very useful process for deburring and also to get a clean surface. Process time min 4 hours. After this I wash the parts in a small ultrasonic cleaner and afterwards the will be immediately black burnished. This tumbler is coming from the US. You should find it in any gun shop. Normally it will be used for the cleaning of bullet casings.
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Hi Achim
I'm also enjoying your build here; I have a bowl type tumble similar to yours but have had mixed results with it. Do you run it dry; also can you tell us what type of media you are using?
I'm also interested in the tile floor you are working on; can you elaborate some on what is involved? Like what is the tile material, how do you cut it, glue it down, grout and finish?
Thanks
Dave
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Hi Dave, I will try to answer your questions with some information available in the net.
http://www.rosler.us/fileadmin/user_upload/Blaetterkataloge/US_130_Verfahrensmittel/blaetterkatalog/blaetterkatalog/pdf/complete.pdf (http://www.rosler.us/fileadmin/user_upload/Blaetterkataloge/US_130_Verfahrensmittel/blaetterkatalog/blaetterkatalog/pdf/complete.pdf)
My medium in the tumbler are stones in triangle format 3 x 3 mm.
Tumbling of aluminium, brass or steel dry is nearly impossible, because you will get a kind of gray coating. The parts are deburred, but with an ugly surface. I use a fluid compound which is a bit acid. Sorry here I have only a link to a German site, where I bought my stuff. It will be mixed with water, 2 to 4 % of the compound only.
http://51350547.swh.strato-hosting.eu/de/dept_51.html (http://51350547.swh.strato-hosting.eu/de/dept_51.html)
I know some people which are using a mix from a bit of vinegar, soap and water.
My be you will have a look at the companies which are dealing with polishing of semiprecious stones, they sometimes offer the whole pallet of polishing consumables. May be this link will bring you closer to that stuff in the US.
http://rocktumbler.com/tips/rock-tumbler-instructions/ (http://rocktumbler.com/tips/rock-tumbler-instructions/) Or a company which is dealing jewelers.
I leave the mixture of stones an compound always in my tumbler. It will be closed with the cover an can wait than for the next job.
My tiles are made from clay. The easiest way to cut them are using a disc in an rotary tool.
http://www.dremel.com/en-us/Tools/Pages/CategoryProducts.aspx?catid=2013&WT.ac=NHPC_2013_ProductCarousel (http://www.dremel.com/en-us/Tools/Pages/CategoryProducts.aspx?catid=2013&WT.ac=NHPC_2013_ProductCarousel)
I was a bit tricky to find the right glue, but at the end it was available in a mosaic shop. This people sell a special glue to fix the small stones also an metal. May be you will find something usable here http://www.mosaicartsupply.com/index.aspx (http://www.mosaicartsupply.com/index.aspx)
This company should also offer everything what will be needed for the grouting.
As a very last final process I paint everything with a 1K polyurethan resin, this will give the surface a kind of sealing. So the open pores of the clay and the grout are protected against oil. This stuff should be available in an boot shop.
Hopefully I could give all necessary information you have expected.
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Hi everybody,
the new year has started now and I have had a look in my archive. The first picture below, was made on 2011/12/18.
This was the hard ware start of this project. The 2D CAD was complete.
Now we are 2 years later and the tiles are out of the bag on the floor.
The very last two pictures showing the engine today, 2014/01/01.
For my an important mile stone is true now.
It is bit to early for happy dancing, like the pink elephant, but hopefully I am very close now.
Cylinder #1 and #2 are under compressed air now running well with 0,5 bar.
The twin is alive but not the compound.
The next big step will be the installation of the the last two inlet units.
At the moment the next batch ( 8 pieces) of eccentric rings is still missing.
My plan is to make them this time with my CNC toy.
Have a good and successful Model Engine Maker Year 2014.
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and here finally the link, to what the engine is doing the whole morning, running.......
https://www.youtube.com/watch?v=XxV1a5KRw1Q
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Nearly there Achim. When it's finished it is going to be a wonderful model. Really love what you did to the base with the tiles. I might do something similar to my build.
Vince
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Fantastic and only running on 2cyl !
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Beautiful work Achim!
Thanks for answering my question; that was helpful.
Dave
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Hi everybody, the last weekend was a good one. In Bavaria we have had an extra bank holiday today. I have made this weekend the first real parts with my CNC toy for a current project. It was the last batch of 8 eccentric rings for the 16 valve engine. My CAM is the VCarvePro and I like it. I have made 6 different tool paths for this job.
#1 machining lower side of the part in two steps 3,1mm deep each, with an oversize of 0,2mm to the final outline.
#2 synchronous milling of the last 0,2mm in one go over all
#3 milling the 0,5 mm section ( circle)
#4 machining the upper side, outline in two steps like above, with 0,2mm oversize
#5 synchronous milling of the last 0,2mm in one go over all
#1 to #5 was running in one go
#6 Finally I had to turn the parts around and milling the 0,5 mm section (circle) on the other side.
tbc
I try to sent this post with pictures, all under 130 kb each, but no chance.
I get these message
Forbidden
You don't have permission to access /index.php on this server.
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two picture only...
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only one...
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I leave it now, it is really frustrating............
Can not upload the pictures.
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Achim, the pictures on your last two posts came through fine!
Another option is to upload the photos to some other service (Flickr, Photobucket etc) and insert links to them in your posts.
Simon
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Achim,
I was getting exactly the same 'Forbidden' error when posting, and arnoldb was able to help me out. Neither Arnold or I can explain it, but when I changed my profile to default to the WYSIWYG editor, the problem was solved! It's worth a try.
--Tim
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Hi Tim, thanks for your help and proposal, so lets try......
Finally where we are with the build today.
And again, the bits and bites are still pure miracles...
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Wow you're making great progress on this engine, Achim! The floor looks great!
Simon
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Dear Lady and Gents,
first of all thanks for visiting my thread.
I have been able to finalize the main valve for the engine. Basic is a block valve from stock for 6 mm tubes.
I have made a disc from brass and fixed this disc by soft soldering to the cap nut of the valve spindle.
A spacer under the floor has given the right distance to clamp the block valve at the floor.
Then an extension was made for the spindle.
Now the hand wheel is in a comfortable position.
So I can start with the real plumbing now.
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You'll be running soon, Achim! Did you make that handwheel, or buy it?
Simon
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Hi Simon, the hand wheel was part of the block valve I have bought.
May be somebody in Europe has interest about the source.
http://www.modellbau-niggel.de/ (http://www.modellbau-niggel.de/)
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Hi Achim: Your machining is A 1 Terrific. That is a very nice engine you are building. I joined this site just a short time ago and I put some time aside from my project to see what my new friends are doing. I wish you the best of luck and I will keep watching. Jack B
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Hi Jack, thanks for your friendly comments and watching my thread. I will keep you all informend about the progress. Last week end I have started the final plumbing work with copper pipes. Some pictures will follow soon.
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Hi everybody, some progress is visible. One pipe at this engine was a kind of challenge for me, because the bend radius is only 10 mm.
I would like to go under the floor with this pipe, so I have to hit the window in the floor.
After some trial and using some "nice blue dinner table deko sand" I got it.
Thanks for visiting my build thread.
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Some very nice craftsmanship going on here. Achim you have out done yourself, that is gorgeous engine. Looks like you will have it running soon and I will be waiting to see it. Still following you and I like....... :praise2:
Don
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That is really a tight bend but glad you managed to do it. Did you need to anneal the copper pipe before bending?
Vince
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Hi Vince, the copper tube I have used was already soft when I bought it. It will be delivered as cut goods from a coil.
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Hi Don, thanks for your compliment and friendly comments. Next step will be the piping from high pressure to low pressure unit. If you look at picture 10026, there is a flywheel visible whitout spokes and also the conrod is out of focus. During taking the picture, the engine was doing another test run with the new piping.
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Hi everybody, today was a good day and I have had some shop time again. I could do the piping between HP and LP cylinder.
After a correction of some wrong manufactured rods (for the LP cylinder, they have been to short) I could restart an other test run with 3 cylinders. So we are coming closer to the final stage now.
https://www.youtube.com/watch?v=zwbSgxHLY3M
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Very nice, Achim. What a smooth runner! :NotWorthy:
Simon
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Absolutely beautiful. Love the detail, handrails, and floor. Very very nice.
First time I saw this thread...not sure how I missed it.
I see you're in Munich. I'll have to drop by next time I'm there. ;D
I spent some great summers there with my grandparents (CimbernStrasse).
I've been back a few times since.
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WOW Achim. That really looks nice. :NotWorthy: :NotWorthy:
Just out of curiosity, what are the dimensions of the base so that I can have an idea of the size of the model?
Regards
Vince
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Impressive!! :ThumbsUp:
Lot of parts!
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hi achim, every time I see good engines it makes me want to do more lovely piece of engineering ian c :ThumbsUp:
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:ShakeHead: I am going to have to make myself a drop valve engine that is just so :Love:
Jo
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Achim! That is so cool! :praise2: Its amazing to see your engine running. Thanks for sharing the video!
I really like all the valve motion, and it runs so smoothly!!
Thanks for sharing your work with us!
Kim
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Simon, Carl, Vince, camm-1, Ian, Jo and Kim, thank you very much for your very friendly comments to my thread. I am proud to be a member of this forum and community.
Ian, looking at some V8 aero engines, I recognize very quick there a lot of things to learn.
Vince, the diameter of the fly wheel is 205 mm, the dimension of the base is 340 x 500 mm.
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Hi everybody, this morning I have had the visit of a brick layer (I have changed my jeans against the typical white trousers). The structural engineer has criticized, that in the middle between the HP and LP cylinder the load could be to high for the floor. So another pillar had to be done on both sides of the engine, which has happened this morning. So the basement will be close to the state that the tiling could start. My last idea is to make a kind of fake condenser, where both exhaust pipes will end in a kind of barrel with one exit and a possibility to collect the oil and perhaps a drain cock to get it of.
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Thanks Achim. More ideas to try on my Corliss. But first I need to finish it :Lol:
Vince
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Very nice brick work Achim! :ThumbsUp:
These details really add so much to your engine model.
Kim
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He's an excellent bricklayer! Is that regular mortar being used there?
Hugh.
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Hi Hugh, regular mortar would by to heavy and to thick. But the normal tile adhesive, used for getting tiles at the wall in your bathroom, is perfect.
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Hi everybody, some small progress again. The basement is finished. Tiles, grouting and sealing. So next weekend hopefully the engine and the basement will be fitted together.
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Beautiful brick work for a beautiful built engine Achim, you have outdone yourself. I like.......... :praise2:
Don
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This machine is a dream, beautiful work, thank you very much for further inspiration. Pavel
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Hi Pavel, thanks for your friendly comments.
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Beautiful brick work for a beautiful built engine Achim, you have outdone yourself. I like.......... :praise2:
Don
Hi Don, thanks for your compliment. To be honest, now is time to do some swarf again. My fingers need some time to regenerate. Next week end I will fix the basement under the engine plate and will make the exhaust pipes and the dummy condenser.
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Achim, that is really beautiful workmanship in every respect, from the detailing of the brick pillars and decks, to the precision and coloring of the numerous mechanical parts. I love the way it runs so smoothly and sweetly, it is relaxing just to sit and watch it ticking over. Very well done.
Les
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Hi Les, thank you very much for your friendly comments and compliments. I am still busy with the final details, like a kind of oil separator, which will be mounted at the basement. Some parts are already made I will post it over the weekend. If I calculate the hours, siting in front and watching the movement, it will be some hours now.
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Achim, just read through this thread, don`t know how I missed it. I would like to congratulate you on a beautiful model, it runs so smooth and LOTS going on to sit and admire. Very well made and presented and thank you for sharing it with us.
MartinH
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Good Morning MartinH, thank you very much for your friendly comments to my engine build. It is still not finished, because my time is very much under the control of my job life and shop time is rare. But here is some small progress again. The installation in the basement is started. I am preparing a kind of oil separator which looks like a barrel. Here some pictures of the making of the "barrel", hopefully I can do the final piping soon. Thanks for watching my thread.
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Hi everybody, during all the guys in the States are hanging around in bars at Cabin Fever I have to go ahead with my engine build. May be I am a bit jealous. I have made some sealing today, glued the big flanges in and made some powder coating. 10 Minutes with 180°to 190° Celsius and job done. Only some down cooling and it can be hold in the hands.
Now the barrel or "oil separator" is nearly finisher for installation.
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Interesting to see the powder-coating process, Achim. Thanks for showing it to us. This engine is looking better each time :ThumbsUp: :ThumbsUp:
Simon
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Didn't know that you could do powder coating at home - I'd never thought of it. Looks great.
Hugh.
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Hi Hugh, two options, two different systems,
http://www.ebay.com/itm/NEW-Complete-Electric-Powder-Coat-Gun-system-with-WAI-powder-coat-sample-/301146779459 (http://www.ebay.com/itm/NEW-Complete-Electric-Powder-Coat-Gun-system-with-WAI-powder-coat-sample-/301146779459)
or
http://www.electrostaticmagic.co.uk/products/powder-coating-system-1 (http://www.electrostaticmagic.co.uk/products/powder-coating-system-1)
I use the WAI system. It is working like a hair dryer.
The Easy Coat should be more professional, I have heard, but never tried by myself and it is more expensive.
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Thanks for that Achim, something else to delve into, I guess!
Cheers, Hugh.
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Hi Achim
Like Hugh, it never crossed my mind that it is possible to do powder coating at home. More things for the wish list.
Vince
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Interesting that Achim, out system at work requires 'gelling' then 'curing' do you have to do both or just heat once?
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Hi Nick, also here, after putting the coated part into the oven, it takes some time, maybe 5 minutes until the powder starts to flow. It starts to shine and from this point is has to stay by 180° Celsius for 10 minutes in the heat. Take it of and finished.
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Hi everybody,some more piping is done and the oil-separator is fixed in the basement. Here some pictures from the progress. Pipe bending, by a simple master, drawn on a wooden plate, some black burnishing and final installation. Happy eastern.
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Achim
What is that blue solution? Copper Sulphate?
Vince
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Achim, nice process for doing your plumbing!
Does the same blackening solution work for both brass and copper? I thought it took different solutions to blacken the two metals.
What ever you did, clearly works though! Your work is beautiful, as always!
Kim
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Achim this is nothing but pure art my friend. Your craftsmanship it is superb. I like............ :praise2:
Don
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That's a stunning engine Achim and has a very nice appeal to it. I ilke.......... :ThumbsUp:
Simon the blackening can be done with Selenium Dioxide (selenium acid) for brass and copper.
Don
Hi Vince, Hi Kim, Don has already given the right explanation for the process. Only the tin-solder will stay untouched. I use a black Edding marker to correct this. Thanks for your friendly comments.
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Hi Don, thanks for your friendly words and the compliment.
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Hi Achim,
I am inspired by your 16 valve engine, the presentation is perfect.
I have finished a Stuart Twin Victoria and hope to make a base like yours if I can obtain the right materials.
Andy
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Hi Andy, if you need any help for getting the right stones or tiles, let me know. Thanks for your compliment.
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Hi everybody, now the exhaust pipes are finished. Also the (dummy-) lubrication system for the the conrod pin is done at the crankshaft side. Some stands with lubrication cups will follow. These have been some really tiny parts. I have made a fixture to glue them together. The bolt in the last picture is not the final solution it is only temporary.
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I'm still watching, Achim :ThumbsUp: Those lubricators are always fun to watch, trying to figure out how they stay over the crankshaft axis :Lol:
Simon
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That's really coming well. I like the authentic setting :ThumbsUp: :ThumbsUp: :ThumbsUp:
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Hi everybody, today is a bank holiday in Germany, so it is time to show some progress. The crank pin lubrication is nearly finished. The drilling of more than 200 holes was a good job for the CNC machine. Also the pocket milling for the flat oil pans. Finally the whole story in motion.
https://www.youtube.com/watch?v=D2Jt0M5r0ao
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Very smooth. Hugh.
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Thats just to cool Achim. We will be waiting for the completed engine video soon I hope. :pinkelephant:
:popcorn:
Don
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Super video, Achim that unit sounds great. Jack
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Hugh, Don and Jack thanks for your friendly words. We will come to an end of this story soon. A handrail around the flywheel area and the drain cock for the oil separator in the basement are the last two points on this list. Followed finally by a wooden box for transportation. A new list is already started, named "The Snow Engine" and the very first working drawings in the CAD are already in progress.
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Looks good and runs well :ThumbsUp: :ThumbsUp: You have put an incredible amount of detail into this build :praise2: :praise2:
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Beautiful detail Achim.
Very much looking forward to seeing more of it.
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Very nice :ThumbsUp:
Dave
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Hi Roger, Carl and Dave, thanks for your friendly comments. Today I have started to make the 16 handrail supports. All from 3 mm bar stock and threaded with M 1,6. Some pictures will follow later this weekend.
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Very nice Achim. Beautiful work.
Gail in NM
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Hi Gail, thanks for you compliment.
Today I can make a hook behind the point "handrail" on the list. Some 3 and 4 mm bar stock, some 1.6 mm threaded eye bolts and some patience given this:
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That's some pretty fine work there Achim! :ThumbsUp:
I love the hole drilling jig, that's very clever.
Kim
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Achim that's some very fine work, but I can't seem to understand how you secured the rails to the base. Are they screwed to the base from the bottom? The eyelets are a nice touch. I like........... :praise2:
Don
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Love it! Looking absolutely great. :ThumbsUp: :ThumbsUp:
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Achim that's some very fine work, but I can't seem to understand how you secured the rails to the base. Are they screwed to the base from the bottom? The eyelets are a nice touch. I like........... :praise2:
Don
Hi Don, the holes in the black rectangle bar has been prepared in advance. I have put a 2 mm pin in and the handrail support will be glued with some normal silicon sealing mass. That will give enough hold, but in a case of emergency it can be removed without any damaging.
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Hi everybody, I have cleaned my shop a bit and collected all remaining rubbish from this build in a family shot.
Here we have:
wrong made parts
set up parts
trials
remaining good parts (no big trouble during machining of the batch)
self made tools
jigs and other tooling
.......
I was a bit surprised about the amount of items.
I have build a box during the last two weekends, so I will be able to transport the engine to a possible show.
The final video is under construction, I have been not happy anymore with the quality of my discounter 50 Dollar/EUR/GBP camera and bought something better. Just learning to work with it.
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Yes, it's amazing how many things remain unused or discarded after a build. Still, I never throw things away. Just in case.
Vince
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Hi everybody, this is my final posting for this build.
The useless remaining parts are in the bin now and I have space for a new project in my shop.
Thank you very much for watching and of course for all your comments and friendly words.
It is good to know, that there are people around the world understanding what you are doing.
The final video is part of this posting www.modelenginemaker.com/index.php?topic=3776.0
Have a nice Sunday.