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I've used 3M 410B double sided tape to hold parts down. It is a machinists paper tape that is about .005" thick. Works great, although a bit pricey.

I can get the DXF into Solidworks without a problem. The crux of my question is regarding the ability of Camworks to function in 2D. For example...

Attached is a screenshot of a profile I'd like...

Howdy. I've been using Camworks to do our University's 3 axis work for about 9 months now. We recently acquired a 3 axis router.

Is there an easy (fast) way to import a 2D dxf of a profile,...

I'm looking for ground shafting for a customer's product. It needs to be 0.247 +0/-.001, 316 stainless. Any idea if there is a source for such material without going with a custom grinding order? ...

Does Mach support a Phase output rather than step/direction? I have read about people getting this to work somehow, but it isn't a feature I've seen published. I have a Taig that I'd rather run on...

Is it possible to have an stereolith part made with a resin appropriate to do investment casting? This probably isn't a new idea, I've just never heard of it.

I'd like to mock up a falling block...

Glad to hear about the challenges associated with a split reciever. Looks like by hand will be the way to go. Safer and more consistent. Thanks for all the help. It is most appreciated.

How about something like this? An interlocking design? I can do the boring and threading...

I'd like to go with a low pressure but large rifle cartridge like a 416 Rigby. The action drawn has...

I was thinking 4130 or 4140 also. Splitting the action would make things easier, but I don't really trust it.

Thanks for the thoughts.

Sounds like shaper is the right tool. Any idea what that will cost to farm out? I'm trying to get a ballpark figure just to get a clue of whether I can pursue this. Thanks.

I'm working on a falling block rifle action, and need a 1" square hole bored through a block of steel (likely 316 stainless) that is 2.5 inches deep. The hole goes all the way through the block, so...

Yup, have a router, and a router table. That would be straightforward.

The larger question is whether this is a viable method for rails. It sounds like it would be, if the angle iron method...

How accurate is a table saw at making perpendicular cuts over distance?

I want to build my router out of MDF, and was thinking of some easy and inexpensive ways to build supported rails for a...

The bearing shown is very similar to the Drylin line of bearings from Igus... They offer Drylin R bearings, and Drylin liners (the linears are cheap too, at 3.51$ each for 1").

I'm thinking of...

I've been trying to find a simpler method for making linear slides than the roller skate bearing contraptions for a DIY router.

McMaster has nylon linear plain bearings (Part number 2570K13 for...

Where would you spend less than 1000$ and get a functional CAM package for 3D and 4th axis indexing?

I was looking at 8 an axis, but 4 would probably work on Y and Z. Still spendy compared to the rail.

I'm looking at about 62 inches of X rail for a 48" travel on a moving gantry, so the Bishop looks right for that. I then need about 32 inches for a 24 inch Y. I looked at the THK stuff last night...

I was considering using Bishop Wisecarver's DualVee system for a gantry router.

I'm looking at using the T2 or TS2 rail on all axes, and a sufficient amount of rail will cost about 200$

Are...

I had seen both the axus and the InventIt machines. With repeatability I was referring to returning to a position, not being within .005 over a distance of six inches as you suggested. I want it to...

So would one of the 1/2-10 5 start acme screws hold 5 thousandths with a given nut? Would the limitation be the screw or the rest of the machine at that point? Thanks.

So the pitch divided by the number of starts gives the normalized pitch? So a 10TPI screw with 5 starts would really be like a 2TPI screw? Is that correct?

I'm leaning rack and pinion but the...

Building the physical structure of most of the CNC routers I have seen doesn't look like too daunting a task. But how to move each of the axes becomes complicated quickly. I'd like to quantify the...

I've got a taig. I don't think .0005 is quite accurate. Mine works well to about .001. Twice as much. I could tighten the nut down more, but you get to the point where the included steppers...

Why do we spin the screws with the stepper motors? Why don't we spin the nuts. In some cases it looks easier to mount the motor in a position to spin the nuts rather than the screws. The screw...

Your pillow block model is exactly what I was thinking. The rollerblade bearings take lots of them to make a single axis work. If the bearings are 1$ each you get close to the price of 12 nylon...

I've never seen a machine with them? Most people seem to go the rollerblade bearing route for cheap machines. Doesn't seem much cheaper, and it is quite a bit more complicated to build all the...

Has anybody tried using Nylon Linear Plain Bearings for a router table or anything like it? McMaster has 3/4" ID bearings for 5.69$. Not bad compared to linear ball bearings.

The shafting isn't...

With supervision, and with limits. Relationships will mean more than anything else. Having an instructor that trusts you is invaluable. We have shop technicians that are trained on equipment that...

Sure, you could get right into hands on work with IME 157. I know of at least 4 or 5 Haas CNC mills, a CNC lathe, probably 15 DRO Bridgeports, another 15 or so lathes, etc.

Keep in mind that you...