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Brady, I agree 100%. My machine is more of a Frankenstein cnc than a Shopbot. Long ago someone built this huge oversized y axis setup that is unlike anything I have ever seen before. This motor just...

Update: Last week I had already ordered two 960 oz in stepper motors. Yesterday I replaced my 600 oz in motors, z and y axis with these new motors. Tested my systems new operating limits, I raised...

Thanks Brady. I felt like I was stumbling around in the dark.

https://www.ebay.com/itm/ORIENTAL-MOTOR-VEXTA-GEARHEAD-4GK5K-D9-RATIO-5-1-NEMA34-FRAME-MOUNT/261709724290?hash=item3cef1d7a82:g:E8IAAOSwiCRUmDmX

Hello again, I know this is a year old post but I had the same issue today of the z axis jumping up while in operation. No knots this time on poplar wood. Brady you mentioned that i need to look...

Thanks, I will check my settings to see what I have now and try to figure out if I need to change anything. I will have to ask for help with that.

I had figured that router speed and machine speeds and depth of cut all need to be fine tuned based on the material I am using. Still learning.

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This motor might be the best way to identify the model.

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Here is a picture of how it stepped up.

Ok, thanks for the help.The machine has had so many modifications. Lord only knows the true original model or year it was made. The man I got it from bought it in SC years ago. He said it was as is...

Shopbot, Alpha, PRT 4G, Mach 3, V Carve Pro 9.5, Porter Cable 7518, 13,000 rpm, 80 inches per minute.

It is a older used machine that has several items that are not original to the machine....

Well, I ran two different programs this afternoon, I changed the vbit. Tightened is as much as possible. Holding the router from turning the bit did not slip as before. No issues with running either...

No the bit stays the same depth. The z axis assemble rebounds. Like if you lower the z axis too low.
I have ordered a new collet. I have a Porter Cable router.
Just wanted to know if there is a...

Ok, I have been cutting some knotty pine. My problem is that the z axis will rebound about .125 when a v bit or a endmill hits a knot. Not every time but often. 12,000rpm, 80 inches per minute. I was...

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Stained and poly

Project # 2. 31461

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Practice attempts # 2 and 3. I did run the programs on a 1×12 also but I gave it away to a friend that is tutoring me on how to use the programs and the machine. Not like he needs it or...

Yes, I think that is a huge hole in my knowledge base. Like how to get the machine back to home, with one button push. Mach3 is my program and I am still learning. I need to watch lots of videos. i...

Yes, when I ran the endmill program I raised it up to exactly +1.000 after I zeroed the bit, then after that program finished it returned to +.800. I was unsure why it had returned to that position...

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First project from v-carve pro trial edition. Me and one of my son's spent a few hours wiring the cnc back up on a warm day the first week of January. Then months of cold weather and my...

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The reassembly process is complete. Next thing is to hook all the wiring up and attempt to test. Maybe by Thursday.

Yea, been thru there many times. My son's all graduated with their bachelors degrees from the University of Tn. there in Martin. Small world.

Jerry, I tried to reply but your in box is full.

Ok, Camden Tn. About 3 hours from Cookeville. I am about as far away from Nashville as you are but on the other side. I bought this out of Nashville last week. I had been doing a bunch of internet...

Thanks for the info. I do not understand what some of it means yet but I am learning. I know it important and I plan to write all these ideas down. My big issue is I do not know what it was like new....