Casting resins cherry, emerald

Discuss casting techniques
Dovydas
Novice
Posts: 46
Joined: Wed Mar 02, 2016 12:18 am
Location: London
Contact:

Casting resins cherry, emerald

Postby Dovydas » Tue Apr 25, 2017 3:10 pm

Casting resins! :(

I tried several different burning cycles and images below shows the best result so far I managed to get from casting resin directly.
This time I used 6 hours burning cycle recommended by Reifi, or Mark (Solus guru).There is some cherry resin prints and some emerald. Cherry looks like cast better then emerald. Some of the print have been done one B9 some on solus I own both.

I kept models under UV light for about 12 hours

Plasticast investment ratio 38/100 (using cimo vacum mixer)

I left investment to settle over night , without rubber base.

I use large Kiln named Argenta, no extra holes or other modifications. only the vents at the top.

6 hour burning cycle has been used.

Any suggestion for improving casting would be highly appreciated? The only thing in my mind I have is to keep curing model for longer. It would be interesting to know what is the average curing time you guy use when curing with simple nail curing unit? I'm thinking of getting now b9 curing unit, to reduce headaches. Does any of you have any feedback?

Thanks,
Attachments
18175947_1117191425053720_1284564540_o.jpg
18175611_1117191588387037_575723357_o.jpg
18175432_1117191675053695_1331948_o.jpg
18160172_1117191621720367_823781831_o.jpg
18159710_1117191708387025_1692366603_o.jpg
dcpattni
Novice
Posts: 97
Joined: Sat May 07, 2016 4:55 pm
Location: Dar-es-salaam,TANZANIA
Contact:

Re: Casting resins cherry, emerald

Postby dcpattni » Tue Apr 25, 2017 4:53 pm

@Dovydas

Do u mean ur oven is http://argenta.pl/APE800,c,95,96.html...

let us know what timing & ramp u keeping.
User avatar
Archerm
Solus Master
Posts: 599
Joined: Mon Oct 26, 2015 1:57 pm
Location: North Carolina

Re: Casting resins cherry, emerald

Postby Archerm » Tue Apr 25, 2017 6:24 pm

I can tell you that trying to cast different resins in the same flasks at the same time will cause issues unless you are using a phosphate base investment. It would be nice to get a little more information on the work flow you are using for casting. When casting resins there are far more variables than with wax base products. normally when I see a rough surface like that it is due to not curing the pieces correcly. Or the investment wasn't mixed correctly.
Dovydas
Novice
Posts: 46
Joined: Wed Mar 02, 2016 12:18 am
Location: London
Contact:

Re: Casting resins cherry, emerald

Postby Dovydas » Wed Apr 26, 2017 9:42 am

yes I use Argenta oven (image attached).

burning cycle 1hour at 149C, 1.5hours at 427C, 3hours at 746C, and the 1hour down to casting temp. I ramp temperature at max speed Argenta oven can go 10C per minute average.

For mixing investment I use wacum mixer from CIMO (image attached) water ratio 38/100, investment plasticast. I leave mould to settle and dry over night in a room temp without a rubber base on.

Flask in a oven when burning, hole facing down.

Some of the models did cast okay, and that gives me impression that some of them just need more curing. Any feedback regards b9 curing unit ? if it works and can cut whole process by 1 day, I'm happy to spend 600euros.
Attachments
18175650_1117682705004592_1120931873_o.jpg
18120131_1117682721671257_1145728400_o.jpg
18119909_1117682715004591_760891878_o.jpg
18119904_1117682748337921_1441864071_o.jpg
User avatar
Jewelermdt
Solus Master
Posts: 804
Joined: Sun Jul 19, 2015 10:38 pm
Location: N.W. Florida
Contact:

Re: Casting resins cherry, emerald

Postby Jewelermdt » Thu Apr 27, 2017 12:45 am

I like my B9 cure box. Most rings take 10 min. I do 5 then flip 5
Dovydas
Novice
Posts: 46
Joined: Wed Mar 02, 2016 12:18 am
Location: London
Contact:

Re: Casting resins cherry, emerald

Postby Dovydas » Thu Apr 27, 2017 2:19 pm

Round 2

This time models has been kept under uv 24 hours. Result looks better, but not great. I'm going to try now to cure models at Evnision otho flash curing unit at work, see if that gives the difference, if that will solve the problem then I could say it is definitely a curing issue.
Attachments
18209570_1118630804909782_1337076217_o.jpg
18195693_1118630688243127_1569428658_o.jpg
18195668_1118630754909787_1013238865_o.jpg
18195433_1118630814909781_1141943430_o.jpg
18176122_1118630781576451_1134195339_o.jpg
User avatar
Archerm
Solus Master
Posts: 599
Joined: Mon Oct 26, 2015 1:57 pm
Location: North Carolina

Re: Casting resins cherry, emerald

Postby Archerm » Thu Apr 27, 2017 4:13 pm

cure them as you are doing then after curing Microwave them in distilled water for 2.5-3 minutes let cool then repeat two more times. Then dry and invest.
User avatar
mongerdesigns
Solus Guru
Posts: 1942
Joined: Sat Apr 25, 2015 5:16 pm
Location: Los Angeles
Contact:

Re: Casting resins cherry, emerald

Postby mongerdesigns » Thu Apr 27, 2017 11:07 pm

Seems like lack of proper curing for sure.
Monger Designs a.k.a. Monger
http://www.mongerdesigns.com

Junction3d - Official US Distributor for the SOLUS 3D PRINTER
http://www.junction3d.com

Follow us on Instagram!
https://www.instagram.com/junction3d/
dcpattni
Novice
Posts: 97
Joined: Sat May 07, 2016 4:55 pm
Location: Dar-es-salaam,TANZANIA
Contact:

Re: Casting resins cherry, emerald

Postby dcpattni » Sat Apr 29, 2017 1:42 pm

Hi,

i follow as Micron3D, then out score casting which comes out perfect....

https://www.youtube.com/watch?v=soAIrSs ... e=youtu.be
Dovydas
Novice
Posts: 46
Joined: Wed Mar 02, 2016 12:18 am
Location: London
Contact:

Re: Casting resins cherry, emerald

Postby Dovydas » Thu May 04, 2017 5:13 pm

Results after curing in microwave as well as under UV lamp. Looks better, but not there yet. Any suggestions ?
Attachments
IMG_7256.JPG
IMG_7255.JPG
IMG_7254.JPG
IMG_7253.JPG
IMG_7252.JPG

Who is online

Users browsing this forum: No registered users and 3 guests