jamscal's 5x10 Gantry Build

jamscal

Still no dthc. Under config. It says no power supply detected under Power Supply and last error history was Current over limit. Everything is plugged in and on. Thanks, James

jeepsr4ever

Verify the black box is set to 50-1 division. Also verify the yellow cable is plugged in from black box to controller not PC. Also verify the 9 pin cable from PC to control box.

jamscal

Thanks! I had the 9 pin plugged into the back of the computer but that was loose in the case for some reason ....used the other 9 pin and it came online. Says dthc online. Green light is blinking. Torch Volts reads now. Seems to work but torch amps reads zero???

jeepsr4ever

Verify MIC01 cable plugged into the back of the plasma cutter and two end in the correct place in the PWM box.

jamscal

jeepsr4ever;133070 wrote
Verify MIC01 cable plugged into the back of the plasma cutter and two end in the correct place in the PWM box.

I'll double (triple?) check or take pics Monday.

Today's problem:

Went to the shop to fill up the water table and mess around with it.

went to zero x and y to cut a part.

Hit reference x by mistake and one motor took off and the other didn't! Hit stop but tweaked it based on measurement.

Turned everything off, pushed the gantry even (as possible) and restarted. It jogged fine but sure don't want to hit ref x again.

Also, the side that didn't take off had a set screw loose on the big gear. I tightened it. Didn't remember it being like that but could have overlooked it.

Tried to load a part that worked fine yesterday and there was an error, wouldn't run. Also the up light on the dthc was red (just twice during all this).

Not sure if any of the above is interrelated..

The 25 pin connector into the box was sagging when it happened (I had the adapter in there.) too. Replaced and tightened with replacement cord. Again not sure if related...

I'm going to loosen the bolts of the gantry, line it up and retighten.

-James

jeepsr4ever

Try it with the new cord when it arrives.

jamscal

Everything is back to normal today..don't know how exactly but it is. Cut parts throughout the day.

Still no torch amps. Not too worried.

Here is a pic of the box. We did make it 50-1 inside.

Another thought: the powermax45 didn't come with a machine torch originally. I think I read somewhere that that might make a difference.

Otherwise everything is tight and running right.

-James

jeepsr4ever

It could be that the divided tip volts wire cable was never installed into that unit. Give Hypertherm's tech a quick call.

jamscal

I'll call if necessary. Don't plan on needing to change amps on the fly, but who knows.

I need to know a little more about the dthc settings.

Torch is diving after the pierce...mostly recovering but sometimes not.

Should I set the delay time or tip saver and do I have to set it for every tool.

Cut some 3/8" today and it was nicer than I expected. This is fresh off the table with no grinding:

Getting a lot of splash when I cut near the side. I'm glad I went with the caulk. Now I'm going to make some sort of splash shield to ride on the gantry that prevents 'direct hits' to the trucks .

-James

jeepsr4ever

THC delay needs to be longer than the pierce time plus the time it takes to egt to cut height plus the time it takes to actually move. Never initially go by the Hypertherm book for cut height. Always go at least .020 higher as tip volts will set cut height once THC delay is gone and THC takes over. I cannot stress that enough to folks

jamscal

Scuzzy area around the trucks^^

My solution (Cut on the table of course. Aluminum):

In action:

jamscal

Still going good:

jamscal

Things going fine still. Time to clean the table.

Wet dross in a cardboard box. Not my best idea today:

jeepsr4ever

Your nice to your table. Most folks dont pull slag until it is holding the plate up..lol. A cardboard box works great with some of this spray

http://www.youtube.com/watch?v=2hCdYOXDsy4

jamscal

First problems this week. intermittently one of the x axis motors will stop and everything else keeps going. It happened once Thursday and I resquared everything, turned everything off and on and checked connections. It was fine after that until today, when it happened multiple times... Motor was locked, wouldn't move at all. -once- I swapped a and x axis and it jogged after that, switched them back and it jogged then too. -don't know if that was a fluke or what. Do I need a new motor? Thanks, James

jeepsr4ever

Hard to say it could be a cable. For a motor you should contact CandCNC they will get one out for free.

jamscal

Thanks. Do I need a reference number for the new motor? Is there something on the control box or do I need to say I bought a Bulltear kit on a certain date... Also, what is the best method of contact for them? -James

jeepsr4ever

Before we assume its a motor lets check all cabling like the DB25 form the PC. When these get loose they cause all kind of motion issues.

jamscal

Good idea, when I said I checked the connections I meant only the motor connections....I'll check everything tomorrow, test and report back.

jeepsr4ever

Stuttering usually means bad data stream. Motors not working then working means a lack of signal. If the motors continued to NOT work we would first look at drives then individual motors.

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