CNC
A View on CAD, CAM, CNC Software Upgrades
The Vectric (software) company has just released version 3 of their Aspire CNC software. Nothing too earth shattering as far as major changes that I can see, but some very nice-to-have upgrades in performance and design ease. The update from version 2 is $400.00 USD. Hmmm… a lot?
A new outright full edition Aspire purchase is $1995.00 USD. It is Vectric’s highest priced do-it-all CNC package. So the $400 update cost doesn’t sound too bad. I also got to thinking that a single skilled programmer writing updates and improvements just for me would probably bill out at over $100 per hour and actually earn maybe $40 per hour ($80,000/yr) That is certainly very naïve thinking but don’t kill the message here. So at best $400 buys 10 hours of program changes, or only 4 hours at retail.
So is the upgrade worth it? You bet. I haven’t made the move but it will be coming.
At first look, Aspire and the other CNC packages offered by Vectric seem to be highly centered on CNC overhead routers and to a smaller extent, CNC mills. Many if not most of the projects shown on the web site as examples are executed in wood. That is far from the many real abilities of the software. Aspire is designed to take a block of any sort of machinable material and turn it into a 2D or 3D item of beauty or value. Wrapped 4th axis machining designs can also be executed.
I don’t think Aspire or Cut3D (another Vectric 3D package) can totally replace the function of my Rhinoceros Modeling and design tool which is used to design highly detailed fully multi sided objects such as full size cars, boats, motorcycles and even buildings. Rhino can also be used to design jewelry… Continue reading
CNC Gun Part
A local person here in Frisco asked if I could duplicate this part (the black one). I don’t usually like to take on outside projects as I have enough of my own. This part looked interesting. It is part of a tripod bracket for an expensive, but what the owner called a “toy” gun. Actually is is a very sophisticated collector item.
As can be seen in the photo the bracket had the tab broken off. It is a very nice injection molded aluminum casting but the crystallization left it vulnerable to breaking where it did.
I was going to make a duplicate by manual milling. That’s the rotary table setup in an earlier post. I changed my mind and decided to do it with CNC milling.
I had to first very carefully measure the part in every detail then make a 3D drawing in Rhinoceros (Rhino) You can see the screen capture and a couple of output pictures.
I converted the drawing to two G-Code files with RhinoCAD, one for top and one for bottom.
I did a test run in oak then made the one in aluminum. I used my Taig CNC mill running mist cooling. Overall size of the part is rather small, about 1.5″ x 1.5″ x 3/8″
I’m not setup for doing anodizing and I have never done any. I have studied the process and it can be done in the home shop. The new part really needs to be anodized like the original, but that is not my “thing” right now. That’s all I need is another skill to master. 🙂
The A3 Live Steam
I was taken away from the Pennsy A3 locomotive build for a number of reasons. 9/23/07 is the date of the last update. That’s almost three years ago. Time goes too fast.
No, I wasn’t doing a Rip Van Winkle. I got the HB2 CHC router completely built and operational. I put a DRO on the X3 mill. I made a lot of router projects. A lot of personal and family events occurred in these last three years as exciting as a first grandchild and as serious as a major cancer cure for wife Gloria.
The A3 is not an inexpensive build, either in cash or time. I only have a limited amount of both. I am still fully employed for 60 hours a week (Hooray!), so spare time is the most limited and cost is spread over time. The other projects did take away time resources from the A3. I already have most of the tender materials.
I admit I have spent time mentally exploring alternatives to the A3 build. That’s because a friend of mine, Ed Hume built a smaller size loco after he finished his A3. Mainly because #1 gauge tracks are much more available and ½ inch scale (more or less) is more popular. For my thinking the construction is smaller so there is less material cost and probably a bit faster build. Gauge #1 has a larger customer base if I want to sell what I make.
Ed did acquire a Tormach CNC mill for his shop. <oooh!> It may have shortened build time, but he could be just building more locos.
So I too have been tempted toward the ½ inch scale size. However, I have come to the realization that I will probably never build a high maintenance track layout in my… Continue reading
Taig Spindle
I had an inquiry about how the Taig Spindle could be taken apart and the cartridge used elsewhere. I had to be honest and admit I had never taken one apart to investigate. Taig products are so well built there was never a need to disassemble the spindle.
The new spindles are different than the older versions. The new ones have the cartridge insert from the end. It slides into a machined bore. The old heads have a split case. The pictures here are the old head. Both hold the cartridge in place with a recessed screw into the center portion of the cartridge.
I wasn’t and still not interested in pushing apart one of my ER spindles to view the cartridge. There may be no harm, but if it isn’t broke now, why look for a problem? The old split case is no problem. The side will almost fall off when the bolts are loose. Probably the reason for the change to the new style.
At first look it appears to be four bearings. The center section is not bearings (as far as I can tell). The end bearings are compressed against the center core providing proper bearing pre-load. The pre-load nuts are on the outside against the bearing case. The center section is under compression.
To me it looks like a very elegant design and has been trouble free. First class machining, not like the cheap imports. It HAS to be to run at 10,000 rpm. That doesn’t imply all imports are cheap but few are rated for that kind of speed.
So I suppose you could make your own spindle case if required. I run the spindle at 10,000+ rpm all day with no heat buildup (after… Continue reading
Some Like It Hot.
Zowee! It’s 95 degrees F. in the shop this afternoon. I have been working in and out of the shop most of the day. Mostly drawing things in Vectric Software then running out to run them on the HB2. My biggest concern is proper cooling for the computer but it seems to be doing fine. They are short runs from 10 to 45 minutes. I am stopping now that we’ve hit the 95 temp in the shade. I don’t even want to think about working in the sun. The front porch also in the shade is showing 98. We have had over 3 weeks of near and over 100 degree days.
I grabbed some pictures with the cell phone so quality isn’t too great. The pictures are showing about 93 degrees at 3:15 in the afternoon. I also got the main bench cleared and am doing some surface work on it. Getting ready for new projects! You can see the new (old) computer under the HB2.
I have been doing some engravings in Corian and just basically getting the feel (yes hot) of how long I and the equipment can hold up in this weather.