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by Techgraphix
Mon Oct 02, 2017 2:45 pm
Forum: D40/K40 small chinese CO2 laser machine
Topic: z table bed spikes
Replies: 1
Views: 91

Re: z table bed spikes

I raise material about 4mm from the bed with a few T-shirt-shaped pieces of acryl (3mm thick)
These t-shapes where lasered from a few pieces of rest material. They cost nothing and when they are worn i just replace them..
Kees
by Techgraphix
Mon Oct 02, 2017 12:44 am
Forum: Tips and new on the DSP & Software
Topic: rectangle corners
Replies: 2
Views: 106

Re: rectangle corners

Not that i know of.. Better to make your drawings, with a certain kind of complexity, in one of the many other CAD-programs, export that as DXF and just import the DXF in LaserCad. Assign the right color (Speed, Power etc) to the vectors and GO...
Kees
by Techgraphix
Sat Sep 30, 2017 12:58 am
Forum: DSP X7
Topic: Auto Focus info????
Replies: 1
Views: 77

Re: Auto Focus info????

There are a few ways of autofocus possible: 1: when you lay your -flat- material on the bed, the autofocus will raise the bed (or lower the head if you constructed it that way) till the sensor is triggered. This is one time at the beginning of the job. After that the distance will be stationairy. Th...
by Techgraphix
Mon Sep 18, 2017 1:31 am
Forum: CO2 Laser Discussion
Topic: 60W Power supply keeps failing
Replies: 9
Views: 195

Re: 60W Power supply keeps failing

When the surface of the contact got oxidized you would get in trouble like arcing. That's why the better quality HV-connectors are silver or silverplated . Ag 2 O or silveroxide, conducts even better than silver But, still, the plug needs to be mounted on an isolating (preferably PTFE) bracket, a f...
by Techgraphix
Sun Sep 17, 2017 1:40 pm
Forum: CO2 Laser Discussion
Topic: 60W Power supply keeps failing
Replies: 9
Views: 195

Re: 60W Power supply keeps failing

I think you are just unlucky.. If the environment ain't hostile (moist, dust, very high or very low temperature etc), i can't think of anything that can cause it. If all HV-wires are kept at quite a distance of the metal frame and the connection to the tube is solid, it should be fine. If you read t...
by Techgraphix
Fri Sep 15, 2017 2:09 pm
Forum: DSP T9
Topic: t9 Upgrade - Laser Won't Fire
Replies: 7
Views: 203

Re: t9 Upgrade - Laser Won't Fire

To make sure it is not the HV-supply and lasertube, You can connect the HV-supply without controller: a switch and a potentiometer is all you need to fire the laser.... if it works.. like this picture i ripped from the internet: http://laserpointerforums.com/attachments/f43/40803d1360135734-power-su...
by Techgraphix
Fri Sep 15, 2017 4:08 am
Forum: DSP T9
Topic: t9 Upgrade - Laser Won't Fire
Replies: 7
Views: 203

Re: t9 Upgrade - Laser Won't Fire

What ever you did, IF the Waterflow-switch is connected to the HV-powersupply, you have to connect all WP's on the controller to GND (if this controller has two laser-outputs, you have to connect them both to GND) IMHO it is better to connect the waterflowswitch to the controller instead of the HV-p...
by Techgraphix
Tue Sep 12, 2017 3:12 am
Forum: DSP T9
Topic: Lightobject new DSP laser controller card
Replies: 60
Views: 2712

Re: Lightobject new DSP laser controller card

Seen from the datasheet, it's Open Collector.. And according Marco's post, it also acts like one..
Nothing special about that.. smile

Kees
by Techgraphix
Mon Sep 11, 2017 12:04 pm
Forum: DSP R5
Topic: Air assist Relay wiring
Replies: 4
Views: 124

Re: Air assist Relay wiring

I don't have an R5, so you should check the manual.
I think you have to connect the +(3-30V) of the SSR to the +Vcc of the controller and the -(3-30V) to the output of the controller.
Which output? You should find it in the manual..

Kees
by Techgraphix
Mon Sep 11, 2017 5:05 am
Forum: DSP R5
Topic: Air assist Relay wiring
Replies: 4
Views: 124

Re: Air assist Relay wiring

These outputs can drive only a few mA's. It is not wise to drive any relay (except for SolidState-relays) direct from the controller. Relais Always should be combined with a diode to suppress the inductionvoltages of a relay. This can blow your controller, seriously. Relais with Diodes are DC-types ...
by Techgraphix
Sun Sep 10, 2017 8:11 am
Forum: D40/K40 small chinese CO2 laser machine
Topic: LaserCad not communicating
Replies: 9
Views: 351

Re: LaserCad not communicating

Did you check the hardware version? And was it "LO xxx.." ? If not, you have another problem.. To which USB-connector did you connect the computer? the one on top, or de one at the underside of the display-unit? Wouldn't you try to connect it with the Ethernet of your computer? This connec...
by Techgraphix
Sat Sep 09, 2017 4:21 am
Forum: DSP X7
Topic: Laser cad and the newest windows updates.
Replies: 10
Views: 279

Re: Laser cad and the newest windows updates.

The problem are the arrows.. Don't know what kind of imported files those where. But i replaced them with a vector, and that works flawless. Gas Valves.pwj5 You only have to give them the appropriate colors. BTW, why do you give all parts a separate color, as all setting are the same??? (except for ...
by Techgraphix
Wed Aug 30, 2017 7:41 am
Forum: D40/K40 small chinese CO2 laser machine
Topic: Uneven Cutting
Replies: 4
Views: 204

Re: Uneven Cutting

That grinding sound you hear can have a few causes: or you table gets stuck. This can be that de screw-spindles (if you have) are not exactly parallel and perpendicular. or there is something that obstructs the movement of the bed. As long as you don't have closedloop motors, the controller won't no...
by Techgraphix
Fri Aug 04, 2017 2:10 am
Forum: D40/K40 small chinese CO2 laser machine
Topic: LaserCad not communicating
Replies: 9
Views: 351

Re: LaserCad not communicating

Is your controller new? can it be that you need to use RayCam instead?
How is your controller connected to your computer? Ethernet or USB..
Kees
by Techgraphix
Thu Jul 20, 2017 2:22 am
Forum: DSP X7
Topic: AWC 608 and Rotary adapter
Replies: 1
Views: 158

Re: AWC 608 and Rotary adapter

I see that it's an frictionroller-type Rotary. That makes it easy as the circumference of the frictionrollers is the only thing that counts. It doesn't matter if your object has a diameter of 20 or 100mm, the ratio is always the same. Then you have to modify your machine first: Probably you have set...

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