Welcome to my CNC Conversion of a Wholesale Tool 3n1
I picked this up for $1050 in the crate as a refurb. from my local WT store. Wasn't really looking for a 3n1...went to buy a lathe,but couldn't pass up the price (although I should have). Quality (as expected) was low to say the least.
Lot of cons and a few pros.
Anyway I ran across this site and was hooked on the possibility of a CNC machine a home. After alot of reading I thought "I can do this". After more reading I realized I really don't need a CNC machine. But it's stuck in my head. Hardware part doesn't scare me to much...but the software does.
So be prepare for lots of questions.
I love to take pics so be prepared for a ton.
Here is my Plan:
1. Stiffen up stand and setup for coolant.
2. Add a bottom and doors for storage.
3. Make a motor and electronics cabinet.
4. Add PC case.
5. Fabricate control panel for switches and VFD panels.
6. Install tool cabinet on right side for more storage.
7. Replace both motors with 1hp 3ph units with VFD’s
8. Of course install 3 stepper motors and necessary electronics.
9. Add 2 ballscrew units. (3/4” and 1/2”)
10. Fabricate enclosure.
11. Most important do it on a TIGHT budget.
Table of Contents
1. Stand started
2. Stand (2)
3. PC Case mounted
4. Front PC cover plate.
5. Control panel
6. Drain hole drilled
7. New mill head location
8. Enclosure updated
9. CNC PC test parts
10. Doors done.
Day 1 right after I bought it.
A shot of the awesome drive system. The pulley on the spindle probably has around 3/8" runout. Gear drives good for .100 backlash,combine that with the couplers and half nut you can add another .200. On that note crossslide had .035 backlash.(more on that later)
Here you can really see just how flimsy the stand is.
Sheet metal brackets held the whole unit.
All cut up ready for stiffening. I will use the 2 pieces of 5" channel for the new bed mount.
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