Optoma UHD60 Ultra HD 4K projector mods

[Paul Rehmann]

The UHD60 price is quickly dropping, now about $1700 now on Amazon and is looking more and more interesting every day.

What are the mods being performed on the Optoma UHD60 Ultra HD for the mUVe 3D DLP ULTIPro 4K Printer and Upgrade Kit?  The web page states "Because we're modifying the projector and light filtering system this printer offers excellent light output, fantastic focus across the projection area, as well as higher output UV bulb."

Are you changing out or removing filters, and changing out the actual bulb?  Are there any other mods such as removing lens focus stops,and/or replacing lenses?  Do you plan on publishing anything on how the mods are performed like you did for heat filter removal on the Viewsonic projectors?

Thanks, Paul

[Lyupi Pen]

I am interested too.

[mUVe 3D Admin]

At this time we aren't sharing details of what is being done with the new machines. Any new models that we release will stay as private design for at least 3 months. Since we are releasing a Pro 4K model at the upcoming March Midwest RepRap Festival that also uses the new 4K tech. It will likely be some time this summer before all details of the 4K system are published to our website. But we will release as open-source as we always do, at that time.

mUVe 3D Support

[Aaron Archibald]

do you modify the Viewsonic projectors you ship with your printers?

seems like not but I would be interested to know 

[Thomas Choux]

Can we see prints done by this setup? It seems to be really good on paper ^^.

[mUVe 3D Admin]

Arch,

Yes we do modify the projectors. Details haven't been release but if you have modded a projector before on your own, you should be fine figuring out how we go about it. Eventually we will of course share this knowledge.

Attached to this post are a couple images. The part in the image is 20mm wide by 25mm tall. Printed at 18 micron X/Y and 25 micron Z. More images are forthcoming on the website. Since we have a new 4K model being release this weekend we've been a bit busy with the preparation. Once we're ready to launch we'll be adding new photos to the 4K system pages on a regular basis.

mUVe 3D Support

[Nikolai Kosyrev]

What is the layer time there on what resin?

[mUVe 3D Admin]

Nikolai,

The cure time on that part is 6 seconds for 10 base layers, 1.7 seconds normal layers. 35% homogeneous pixel dimming. FTD Deep Black Resin.

mUVe 3D Support

[Nikolai Kosyrev]

Does it have a dust air filter/protection ?

[mUVe 3D Admin]

Nikolay,

Yes it has a place for a filter, though it does not come installed. It is offered from Optoma.

mUVe 3D Support

[Nikolai Kosyrev]

It is time to share details. Isn't it?

[Nikolai Kosyrev]

Waiting

[mUVe 3D Admin]

The mod is simply removing the hot mirror from the projector, if you wish to keep the projector safer from IR heat, or if you will be utilizing in a warm environment, then you will need to reinstall a UV passing hot mirror in its place. Though this usually means cutting the glass yourself.

mUVe 3D Support

[Nikolai Kosyrev]

1. Is the phocus sharp on entire build area? Or it is on 1/3 area only like it was with 7820.
2. What UVHot mirror do you recommend?
3. Do you modify lens system?
4. Does it collect dust on lenses and mirrors.
Thanks

[Elliot McAllister]

Interested too. Beyond the discussion above for mods, it seems like it's a long throw to get the projector to 15-20um XY. Is anyone using one of the drop in lenses to get this resolution? Or can this be attained with only the standard optics?

Thanks!

Elliot

[Nikolai Kosyrev]

Waiting for Dean reply

[mUVe 3D Admin]

Nikolai,

1. It is better, that is all we can say. There isn't a way for us to measure this aspect versus the older projectors. However it is suffice to say the problem isn't completely gone, it is mostly/95% resolved.

2. What ever hot mirror you need for your material should be your choice. These are generic products and you will need to order a 25mm square unit and cut it to shape to install in the projector if you wish to use one. They are available from many optical products providers worldwide. We typically work with Edmund Optics and ThorLabs.

3. No

4. This is not a contained system, so yes area with heavy dust will always be a concern. You should never operate a high resolution 3D printer in a dirty/hot/cold/or excessively humid atmosphere, as is the case with most 3D printing machines. If you are working in a poor environment then your printers may need to be encased. However with the 4K system this may be difficult due to the projector size and it's need for adequate cooling.

mUVe 3D Support

[Elliot McAllister]

Hi All,

I'm wondering about the 4K projector. I had it working and didn't save my disc image. I rebuilt but I appear to be getting 1080, not complete 4K. RasPi3.

 

1. Plugged into HDMI 2 Optima UHD 60

2. Double checked the image files are correct aspect 3840x2160

3. Here is the config file: from raspberry pi site, if someone could please check me and see if the additions at the bottom are off.

# For more options and information see

# http://rpf.io/configtxt

# Some settings may impact device functionality. See link above for details

# uncomment if you get no picture on HDMI for a default "safe" mode

#hdmi_safe=1

# uncomment this if your display has a black border of unused pixels visible

# and your display can output without overscan

#disable_overscan=1

# uncomment the following to adjust ove

rscan. Use positive numbers if console

# goes off screen, and negative if there is too much border

#overscan_left=16

#overscan_right=16

#overscan_top=16

#overscan_bottom=16

# uncomment to force a console size. By default it will be display's size minus

# overscan.

#framebuffer_width=1280

#framebuffer_height=720

# uncomment if hdmi display is not detected and composite is being output

#hdmi_force_hotplug=1

# uncomment to force a specific HDMI mode (this will force VGA)

#hdmi_group=1

#hdmi_mode=1

# uncomment to force a HDMI mode rather than DVI. This can make audio work in

# DMT (computer monitor) modes

#hdmi_drive=2

# uncomment to increase signal to HDMI, if you have interference, blanking, or

# no display

#config_hdmi_boost=4

# uncomment for composite PAL

#sdtv_mode=2

#uncomment to overclock the arm. 700 MHz is the default.

#arm_freq=800

# Uncomment some or all of these to enable the optional hardware interfaces

#dtparam=i2c_arm=on

#dtparam=i2s=on

#dtparam=spi=on

# Uncomment this to enable the lirc-rpi module

#dtoverlay=lirc-rpi

# Additional overlays and parameters are documented /boot/overlays/README

# Enable audio (loads snd_bcm2835)

dtparam=audio=on

disable_camera_led=1

hdmi_pixel_encoding=2

start_x=1

gpu_mem=128

disable_overscan= 1

hdmi_ignore_edid=0xa5000080

hdmi_group=2

hdmi_mode=87

hdmi_cvt 3840 2160 24

config_hdmi_boost=7

framebuffer_width=3840

framebuffer_height=2160

max_framebuffer_width=3840

max_framebuffer_height=2160

hdmi_pixel_freq_limit=400000000