First, just as a test if I succeed

The new shape is finished ..... and works much better .



Here you can already see that it fits better and more exactly to each other .







The small vent holes I made with a drill. With a very high rotating works quite well and I have exactly the right places .



And so I'll have the same cast and a new chain link.





After the resin was cured sufficiently the big moment came .





It still has bubbles , but this time it's useful with a little reworking.



On the next cast I'll try it with an injection, but one learns ....

Currently here is more of a learning effect for Resincasting in multipart forms of complex parts.

Although the surface is now reasonably well when I take the members out of shape, but sometimes only thinly over the bubbles collapse immediately when I edit the parts.
So continue in the trial.
Meanwhile I injeziere the resin heated to 40 ° C with a syringe in which to vent it before just fine. Simply compress the opening and pull the piston and already all the air collects at the top and the resin is almost clear.
I also heat the mold in my little annealing prior to about 40 ° C . so that the resin can be almost water thin pressed into the mold and leave bubbles almost like water. Nevertheless, I have always more or less air to different , changing places. Oh yes breather is already there.





Now I just try out with what I can best repair defects. Apoxie is currently best suited , mainly because it after curing has a similar hardness.



So I 'll probably have to build a third form with the experiences from the first two, but this completely interpret for the resin injection from below takes place in the form of a standing up so that the air is inherently displaced upward .

  ola' edwin , i cingoli cosi stampati sono molto belli e darannao al tuo modello un tocco di classe , buon week da robby62 e riky94 ..... 

Thamk you Robby.... 

Resinform the Third ...

After I so do not get the bubble theme with the second form in the handle , I build from the experiences of the first two of a new form again . This I will only provided with a single vent and a filling .
But first, back to embed the link in plasticine. To get this even particularly smooth the putty beflamme I still very carefully with a small gas burner.



For mixing of silicone and Reesin I use a fine balance.



After the silicone is networked I cut the surface tension raised by the edges with scissors so that the mold can lie flat .
so it looks from form to form better.





I share the top again with modeling clay and paint the silicone release agent before casting with a . For this I use a simple oil for cooking . But there is not any oil used . But you can easily find out by the silicone smeared with a thin film of oil. If it pulls evenly and thinly over the surface , you can use the oil , if it looks like water on a fresh car polish it will not work .



So I 'll do it then with the third molding.



In my annealing , curing works much faster and better.



And so the new shape still looks as a block and then separated .





Now in the forms I make no vent in the casting sprue and more . These later I drill with a drill to the areas where they are needed.

Since I was approached because of the reuse of syringes.
I'll harden the resin is pull the plunger out and press the resin with a wire from the syringe. It is almost as often reusable.







Even the thought of minimum weight of the tank I'll probably have to move by 5 to 10kg for top . I have today once weighed a chain link zamak and finished at about 55g the pair of chains will probably come to about 10kg . For this, the chain through their high weight but should run well .

Finally it works so that I can accept it .......

But first, how to proceed.
This time I have no sprue and vents built into the form , I would like to fill the mold in an injection .
Therefore, I now still need a filling and venting in the mold. This I am simply by i install in the appropriate places with the narrowest rivers jewels form a hole with a 3mm drill bit. With a sharp drill rotates very high it works wonderfully .



Add the powdered form I put back the 3mm brass rods, which I do I need as a placeholder in the form of the bearing tubes of the chain pins .
Here you can also recognizable that my forms from time to time also be better and more accurate.



And I can now press the preheated in the syringe and slowly vented resin into the mold. Here I swing the on-edge shape slightly so that there are no air bubbles can collect in corners.



I press the resin into the mold without stopping until no air bases with the resin from the mold exit .. The syringe daf while in no case be drawn from the injection port , otherwise you again inflated a bubble of air into the system.



After the resin was hard now see the link like this.
I still have a few bubbles , but only on the bearing surface of the chain link and I certainly still get away .



And so the raw plastered link then looks . The few bubbles I can now easily repaired with a spatula and then the link is now usable.

Complimenti per l'ottimo lavoro, ma non ho capito una cosa, sarà un modello statico con i cingoli in resina o un dinamico con i cingoli in lega di alluminio?

Congratulations for the excellent work, but I did not understand a thing, it will be a static model with a dynamic tracks resin or with the tracks of aluminum alloy?

conosci http://www.panzerwerk.com//index.php?option=com_frontpage&Itemid=1
fornisce accessori in resina per carri in 1:6

you know http://www.panzerwerk.com//index.php?option=com_frontpage&Itemid=1
provides resin accessories for Tank 1:6

ciao ciao

Hi Marco,

I first milled me a general Master of aluminum, since this is virtually indestructible and very accurate.

This a general master I'm now 9 more master of resin, as I need for my spin cast and this must be heat resistant because of the silicone used by me, which is why they nich can also easily print. This only works with resin.

By the way I bring with me as well as I can make very complex parts in resin.

The chain itself I will then create the centrifugal casting Zamak, a zinc alloy.

Greeting Edwin

Conosco la Zamak, è la lega di alluminio più diffusa.
grazie del chiarimento.

I know the Zamak, aluminum alloy is the most widespread.
thanks for the clarification.
ciao ciao

Moving ahead .......... 

Although the Master of resin which I am doing now are not perfect and still need a little rework, but they are used and there will be more.
For the spin cast I need 9 pieces and when I have them together I can start with this form.

Again, it goes a little further.

The Resinmaster are now cleaned and the flaws I have been milled, which takes incredibly long.
So now I could touch up with 2K filler this.



Tomorrow they will then sanded