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by Robert Howle
Fri Sep 14, 2018 9:43 pm
Forum: General
Topic: Formlabs Castable Wax Resin Settings on B9 Core
Replies: 20
Views: 2205

Re: Formlabs Castable Wax Resin Settings on B9 Core

Has to be your caster. Myself and many others cast the green and yellow almost daily with great results. I am now using Ultravest Max and love the low dust and smooth surface I get. Since I cast using a 35 yr old broken arm casting "machine" (prob cost $250.00 at the time) and a small 8 x ...
by Robert Howle
Fri Sep 14, 2018 2:43 am
Forum: Official News and Updates
Topic: The Storm
Replies: 0
Views: 1205

The Storm

Hope all our friends are safe. Our NC neighbors are getting some rough weather for the last few hrs. Over 275k without power, over 200 water rescues and almost 200 waiting in Newborne, NC alone. We should be getting the rain and wind by tomorrow and is expected to rain until Sunday or later. I'm in ...
by Robert Howle
Wed Sep 12, 2018 5:02 pm
Forum: General
Topic: Formlabs Castable Wax Resin Settings on B9 Core
Replies: 20
Views: 2205

Re: Formlabs Castable Wax Resin Settings on B9 Core

Yes, thanks for sharing. Just wanted to give as much info as possible to our forum members.

Robert
by Robert Howle
Wed Sep 12, 2018 1:53 pm
Forum: General
Topic: Formlabs Castable Wax Resin Settings on B9 Core
Replies: 20
Views: 2205

Re: Formlabs Castable Wax Resin Settings on B9 Core

Had u cast B9 Emerald or yellow before this. Are u using the same burnout as before or a different reg wax burnout? Post your burnout schedule please for the new purple stuff. All castable resins contain wax, just a question of how much. More wax equals longer print times and usually some loss of fi...
by Robert Howle
Wed Sep 12, 2018 1:23 am
Forum: General
Topic: Formlabs Castable Wax Resin Settings on B9 Core
Replies: 20
Views: 2205

Re: Formlabs Castable Wax Resin Settings on B9 Core

Can u post pics of some prints with small design elements?

Robert Howle
by Robert Howle
Tue Sep 11, 2018 2:43 am
Forum: General Discussion
Topic: VAT, PDMS and other annoyances
Replies: 8
Views: 1226

Re: VAT, PDMS and other annoyances

I would mix 60ml and try that. On my vats the PDMS only goes about 1/2 inch to 3/4 past the overflow point.

Robert Howle
by Robert Howle
Mon Sep 10, 2018 2:38 pm
Forum: General Discussion
Topic: VAT, PDMS and other annoyances
Replies: 8
Views: 1226

Re: VAT, PDMS and other annoyances

How much material are u mixing and pouring? Sounds like not bonding to surface.

Robert Howle
by Robert Howle
Mon Sep 10, 2018 12:30 am
Forum: General Discussion
Topic: VAT, PDMS and other annoyances
Replies: 8
Views: 1226

Re: VAT, PDMS and other annoyances

Do not use dynamic vat positioning. If your PDMS is lifting then I would like to see a screen capture of your layout with supports on a typical model u are trying to print. There should be no vertical force on the PDMS as the vat sliding motion and subsequent layer release should make that a mute po...
by Robert Howle
Sun Sep 09, 2018 3:35 am
Forum: General Discussion
Topic: Winner printed with B9 Core 530
Replies: 7
Views: 1135

Re: Winner printed with B9 Core 530

Congrats!

Robert
by Robert Howle
Sun Sep 09, 2018 3:34 am
Forum: General Discussion
Topic: VAT, PDMS and other annoyances
Replies: 8
Views: 1226

Re: VAT, PDMS and other annoyances

First, what resin are u using for printing. U should only use soap and water for initial cleaning and only ISO alcohol and micro fiber cloth for final cleaning of the vat widow. I have had some vats for over three yrs with no scratches. PDMS has to be level and fully cured. It takes 48 hrs if curing...
by Robert Howle
Fri Sep 07, 2018 4:52 am
Forum: General Discussion
Topic: Anyone in San Antonio ?
Replies: 2
Views: 460

Re: Anyone in San Antonio ?

Jacob, I can print for u and send same day. South Carolina. no charge for prints just postage.

AK will do a fine job also.

Robert
by Robert Howle
Sun Sep 02, 2018 8:49 pm
Forum: General Discussion
Topic: Resin film or residue with the prints
Replies: 5
Views: 1115

Re: Resin film or residue with the prints

Only need to filter if u have particles in the vat. When u say resin 'films' what do you mean by that?

Robert Howle
by Robert Howle
Sat Sep 01, 2018 5:33 pm
Forum: B9R-3-Emerald
Topic: Cleaning the window
Replies: 1
Views: 449

Re: Cleaning the window

What machine are u using?

Robert Howle
by Robert Howle
Mon Aug 27, 2018 11:40 pm
Forum: Hardware
Topic: Need to purchase a replacement {ASAP}
Replies: 3
Views: 778

Re: Need to purchase a replacement {ASAP}

Click on the "got any questions" balloons, bottom right. Ask them.
help screen.JPG


Robert
by Robert Howle
Thu Aug 23, 2018 3:40 pm
Forum: General Discussion
Topic: Resin film or residue with the prints
Replies: 5
Views: 1115

Re: Resin film or residue with the prints

You could save a ton of resin by reducing the number of supports. Most of those u don't need.

Robert Howle
by Robert Howle
Sun Aug 05, 2018 3:23 am
Forum: General Discussion
Topic: Object compressed in the Y-AXIS???
Replies: 8
Views: 796

Re: Object compressed in the Y-AXIS???

Always a great help to others when u solve a problem and post the resolution to that problem.

Thanks,

Robert Howle
by Robert Howle
Tue Jul 10, 2018 5:22 pm
Forum: B9R-3-Emerald
Topic: Emerald Resin Casting Issues
Replies: 19
Views: 3397

Re: Emerald Resin Casting Issues

It's not a minus number. It want's you to ramp at 2degrees C per minute.

Robert
by Robert Howle
Sat Jul 07, 2018 12:14 am
Forum: Hardware
Topic: Calibration Measurement Issue
Replies: 1
Views: 499

Re: Calibration Measurement Issue

Have u watched the videos on calibration of Fade, Balance, and slope?

Robert Howle
by Robert Howle
Mon Jul 02, 2018 6:32 am
Forum: B9R-3-Emerald
Topic: Emerald Resin Casting Issues
Replies: 19
Views: 3397

Re: Emerald Resin Casting Issues

If u don't have proper cure, air flow and good burnout practices, printing with yellow is not going to solve your issues.

Robert Howle
by Robert Howle
Fri Jun 29, 2018 3:38 am
Forum: B9R-3-Emerald
Topic: Emerald Resin Casting Issues
Replies: 19
Views: 3397

Re: Emerald Resin Casting Issues

Does your oven have a hole in the top to draw air in through the bottom of the oven? I don't know that u are getting cure with that lamp.

Robert Howle

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