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Recent programs are now being displayed in the library as they normally would. It seems that setting the punch code parameter to the correct setting corrected the library problem as well. The machine...

Okay, made some progress today. The machine is now uploading and downloading programs just like it should. Changing the punch code did the job. Only issue now is the programs aren't appearing in the...

we received an email file with the new parameters. Downloaded those into the machine. An expert came out and got the machine going. We didn't notice that we still had some issues until after he had...

I get a list of programs but just the one's that were in the machine before the parameters all got erased. the new one's go into the machine and appear if I call them up but do not appear in the...

Lost the parameters on our machine last week. Its running again now but when I load a program it doesn't appear in the library even though its in the machine. Downloads from machine to computer are...

Try changing bits. That will be cheaper than changing spindles. If that doesn't do it then your spindle may need replacing.

I'm pretty clueless about how an automatic drawbar works and don't know of a source for frameless motors either but kind of wanted to say that if your having a big problem locating a component like...

Wondering if anyone can help guide me in what type bearings to use on a leadscrew. On the Z axis. I've heard that I need to use thrust bearings. Can I just go into an auto parts store and ask for...

I don't know a lot about this but it seems to me that if your costs go up 15% then the price of the product should do the same instead of you just eating the additional expense. I know this isn't...

I think feedback on servo's come from the encoders. It is my understanding that the encoders attach as part of the servo drive shaft, usually at the back end.
Have a good one,
Jawno

Thanks for the link. I'll check it out. Yes I agree its very complicated. I would leave all this to the engineers but they want more money than I can afford. Maybe there's a good reason for that...

I got the 18k pounds because there is a 4.5 foot moment arm between the load and the point of reaction at the end of the beam. 4.5 times 4k = 18k. That being said you are right that it would be 2k on...

I found this discussion to be extremely interesting but after googling "column buckling" my head was left spinning. I can figure the forces on a simple beam. Say 4,000 pounds on a 9' beam gives you...

You might read through the following guide (links below) It seems to have a lot of basic information. A lot on resin casting but a lot of useful cnc info interspersed. Sorry I don't remember who...

I experience essentially the same thing on our Mori-seiki. I'll start it up in the morning and free spin it while I go make coffee then come back and run parts. If the tolerance is tight i need to...

I'm certainly no expert so don't take this as gospel but if it were me I would go with the bigger motors. 166 sounds a little small and I'd rather be overpowered than underpowered. Forty five bucks...

Crane,
I followed your previous build and am looking forward to following this one too. I am on both lists so I've seen this other persons comments as well. It seems to me like your starting to...

I think if you are talking about using a 7/8" round shaft 80" long to support your gantry then that is gonna be way too light for a 150 pound gantry. Droop in the center will be a problem. I would...

You might consider a tapmatic too.
If your going into a blind whole you'll probably want to give yourself a couple tenths of hole beyond the end of the threads so the machine has time to slow down...

Iwas wondering where you got the ROLLON trucks you mentioned? I tried googling it but just got a bunch of transportation companies.

The local metal expert here says don't even consider the 6065. Way to soft and ductile for something like this. The 7076 has strength similar to steel so it might work. He recommended you sleeve it...

Nobody seems to have chimed in on this so let me see if I can answer your question. I am a bit of a newbie myself so don't take this as gospel but I believe I'm right. The short answer is no this...

Use a tapered cutter and cut a circle. The amount of taper in the cutter will determine the angle of the cone.

Thanks Neil. I'll try getting some more real world measurements.
I know exactly what you mean about friction in the bearings too. I had a problem with the chain wanting to jump teeth on the...

Your right of course about my sprockets being backwards. I should have realized that earlier. I set it up like a bicycle where the drive sprocket is the big one, but thats for speed not power. I'll...

Okay I'll try uploading some pics. I'm new here so bear with me if it doesn't work right off.

First pic is of the back side showing sprocket drive. The plates scabbed on the bottom are just to get...

The rollers are on an inch and a quarter shaft with a keyway and key.

The shafts are supported by flange bearings in pillow blocks There is

a plate on both sides of the rollers that hold the...

I am trying to calculate the force necessary to turn three rollers. What I am trying to accomplish is to bend a radius in a piece of steel tubing. The tubing is 2 inch outside diameter and 1.8 inch...