You didn't mention what OS you are using, so I hope this is helpful. The suggestions below are for Linux. QCAD will give you something that resembles...
Hi: Using config/hotkeys you can set any key, but the pageup and down are the defaults and the most common.. Thanks, Art www.artofcnc.ca ... From: "Steve...
Just a couple of comments - I have a waterjet in my shop and while it is an incredible technology for many purposes it also has some drawbacks - The main one...
Hi, I thinking of buying this kit in the link below. Could one of you electronics people look at the link and tell me if I need resistors in series with the...
OK, I'll take you up on the offer of answers to questions: What sources do you recommend for pumps and nozzles? How long do nozzles last? Anything special...
This list is for the discussion of CNC and related topics including CAD, CAM, EDM, & DRO. The list focuses on the construction of home shop CNC machines along...
CAD_CAM_EDM_DRO@yahoo...
Oct 1, 2005 4:00 pm
83544
Hi Terry, This is a unipolar drive, so you must either use only the rated voltage of the motors, or add the L/R resistors. They will depend on the voltage and...
Tom, Try this for a wide variety of answers by experts Visit the Waterjet Web Reference: http://www.waterjets.org Roland ... nozzles ... it is an ... drawbacks...
... Hi Terry, That is a Kits-R-us kit #179 and from the people I know who use it, they are satisifed with it. Resistors are based on the motor amps so if the...
... it is an ... disposed of - ... do the ... slower ... there ... doing ... ahead ... get to ... being an ... pressure) ... Hi Roland, I want to cut out...
... it is an ... disposed of - This has always got my cogs turning. how-come-is-it that one cannot use, er re-use the abrasive ? It would seem that the swarf...
... This drive will operate the resistance-limited motors found in floppy drives, etc. It is of no use on any motor above size 17, as it will self destruct...
You All Has anybody done a DIY Plasma Cutter? I have lots of welding transformers. It seems that the cost of a plasma cutter is in the torch. I have no...
bobmcknight@...
Oct 1, 2005 6:09 pm
83551
Hi, I was going to use this driver with 50oz motors of 1 amp using a power supply of about 20 volts. The machine would be quite small for drilling/routing...
... I have seen references to a home brew plasma cutter The group http://groups.yahoo.com/group/plasmacutting has a homebrew file that has a couple videos and...
no, it will not self destruct. the international rectifier hexfets have a built in reverse diode that will handle FULL LOAD CURRENT. they are sweet chips. ...
I chose to use the LMD18245 based driver module from www.embeddedtronics.com. Not only is it a microstep driver but I managed to asemble them for less than...
... it to ... These are proper drivers and would serve you well. 20 volts at 1 am is 20 watts. look for some 25 watt resistors. Or, use multiples of lower...
Hi, The one I have in my hand is 5.1 volts but it would depend what other motors I have in my box of bits. I'm sure I have three that are virtually the same. ...
... strip-board. I ... The Kits-r-us curcuit is the same thing, (except for the optos) and is available for many sources. I do like the robotstore circuit...
Hi Dave, With every new suggestion the price is going up and I wanted to do this particular machine for next to nothing, it being just a first machine and ...
yah...the guy has the clever idea that it's the way to finance his business by not paying suppliers til he sells the stock he bought. And dragging it out as...
... Well, you would need to add resistors. A 1 Amp/winding motor would not have a 20 Ohm winding resistance, or it would go up in flames. So, you would need...
irf needs more than logic high to turn fully on. and you DO want the fet fully on- otherwise it's a resistor and will dissipate heat (W = i^2R, where R is the...
I want to get emc2 and halcope to try custom mcodes I followed all the recent notices about BDI3.25,6,7,8,9,30 that fixed (god knows what it fixed after all...
... The diodes will never be called on to conduct. The problem is that at 20 V power supply, when the drive steps, the transistor that is turning off will be...
... Oh oh! I made a mistake there. It would only be 19 W per resistor. Maybe a 20 Ohm 25 W resistor would be fine. The power supply would still need to ...
Hi Tom ... There was no need to download and reinstall from the CD every time. You could have used apt-get to upgrade just the packages that had changed.. ...
