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I don't know what Grizzly mill my friend has, but he went through a horrible wait for a new motor. When he fired off an angry letter to Grizzly that he paid for his motor to be rewound at a local...

The threaded point will not pull the bit into the end grain of the stump. They are made to pull in long grain or side grain. They won't easily bore into the end of a dry 2x4, let alone a wet stump....

You may want to try Delrin. Here is a link showing laser etching delrin for a paper stamp. Delrin Laser Marking & Engraving with a Trotec Laser Machine
I've also read about folks that laser delrin...

The bit you want is called a center cutting straight bit, if you want straight carbides. If you want cheap; MLCS Plunge Cutting Straight Router Bits

Lee Valley has a high speed steel spiral upcut,...

Probably acrylic foam tape. Used to mount a lot of auto accessories. It's really good stuff.
3M Automotive Trim & Accessories : 3M

Cast urethane will meet some of the parameters except for cost. A 6"x4'x8' sheet of 15 pound per cubic foot will cost around $1200. And that will dent. More density, more money. Unless you can run...

Do you shop at Walmart? Same deal, take over the market, get rid of most of the competion, then do what you want. Monsanto has done it with soybeans. I suspect that method has been used since the...

How about contacting someone with the same last name for a job or career consultation.
mmckenna.com
Mark did a job for us at Caterpillar Industrial Design.
I say get your degree if you want to...

Most motors do not have adequate bearings for all but the lightest cutting loads. Side loads will wear out the motor quickly if it would work at all.

"It runs off of 220vac, 50hz power input."

If it's actually 50hz, you're in trouble. USA is 60 hz, Europe is 50hz.

There are several good videos on Youtube. One discusses pushing the heat towards the area to be brazed instead of directly heating the braze area. It has to do with heat transfer in the aluminum.

I can't help with the DXF, but a couple ideas about the burning.
Are you cutting in one pass? Try two passes. You are probably not getting rid of the sawdust because flutes in that size of bit are...

I think you are going to be disappointed with standard insert tooling, machining pen acrylic. I'm a wood turner, and also turn some cast materials for pens. It can be really chippie cutting that...

Do you know what a guide bushing is? I agree with the template idea, but would rough out the part, then make a single finish cut. Start off the pattern with a large guide bushing riding against the...

Have you read the carvewright forums? I haven't for a long time, but a year or two ago, nearly everyone had to send their machines back to the manufacturer at least once. Often times more than that....

Sorry for no pricing, but I haven't bought a board in years. I bought a manual bandsaw mill years ago, and filled up every space I had, plus half my Mom's garage. I then sold the mill for $300 more...

If you live in the Indianapolis area, contact Wood-mizer sawmills. They have a contact list of sawmill owners, and some of them have their own kilns. Also you can save a considerable amount if you...

Lots of things to consider Bob. Taking wet lumber off the log into a closed space like a basement will cause the lumber to mold. You need enough dry movement to prevent this. Then consider the...

A quick way to add strength to the lags is to run them into a wood dowel. You can get some closet rod that will be around 1 3/8" diameter. The dowel should be a minimum of 1 1/2" from the end of the...

I thought I would add a comment or 2 about the hard sanding versus soft. I had a homemade belt thickness sander that had a steel platten. The sanding scratch pattern left in the wood was as deep as...

No expert on this, but wouldn't a gear reduction be of benefit here? Fine carving will require a .040 or less step over. Just thinking out loud.

It would seem that getting a local trophy shop to do the laser work would be the way to start. Just mark up the cost of their work and pass that on to the buyer. If this works well, you can then look...

I've looked at these machines as well, but not inspired yet to build one. I had the idea that maybe glass beads would be a preferred material instead of sand. Or maybe a sized grit abrasive. Did you...

I haven't tried this, but did read that if you cut through wet newspaper, or add a film of water/dishwashing liquid to the acrylic, it will stop the residue.

Antifreeze can definitely kill. Ask my wife's sister-in-law. She's doing life in LA county for killing my brother-in-law. Seems she spiked his Gatorade with antifreeze till it did him in. She might...

"but the markup that these companies are adding is simply ridiculous."

If you do a search, you'll probably get a better idea why they mark them up. Getting some of those machines up to speed seems...

You also have to consider the RPM's of the Colt if you plan on cutting aluminum. It's very easy to "weld" the aluminum to the cutter even at the low end of it's rpm range. Want a better idea of how...

I would venture a guess here, but dry abrasive would seem to meet your requirements. I'm sure that a water jet would be more accurate, but that does not fit under the "not very expensive"...

I have been looking for machines and software for cutting and scoring fome-core. We are currently using 4' and 8' straightedges with hand held blade holders to cut our fome-core panels. We use...

MDF isn't known for it's strength. Unless it has some torsion box construction, or enough structure under it, it won't be known for it's flatness. Also if the MDF is tightly bolted to the steel,...