Messages

211

Show"N"Tell ( Your Machines) / Re: The Laser Project.

« on: October 05, 2009, 12:00:03 PM »

very nice Tweakie.  I'd like to follow in your footsteps with this project;)

Barry

212

Show"N"Tell ( Your Machines) / Re: emco pc5 lathe

« on: October 05, 2009, 11:52:05 AM »

Beautiful work, love the neatness of the electronics, makes me want to redo mine;)

Barry

213

Show"N"Tell ( Your Machines) / Re: spindle connection...

« on: October 01, 2009, 02:29:41 PM »

I believe I've got it.  I'll have to use two plates, each 5mm, instead of one 10mm.  The bottom plate will connect to the platter, and the top will connect to the spindle.  Each plate will have extra large holes cut out to allow the bolt heads from the other plate reside.  The two plates will bolt together on the outside of the platter/spindle area.  In my head this should work fine.  I'll have to fire up my modeling app, and look at M6 bolt heads to make sure they are 5mm or less in height.

Whew, wrapping your head around this stuff can destroy your mind, where's that beer?

214

Show"N"Tell ( Your Machines) / Re: spindle connection...

« on: October 01, 2009, 01:24:10 PM »

The holes provided on the spindle are on the opposite face of what is shown on the picture.  The picture has the wiring harness shown it's opposite that.  I could I suppose turn the spindle onto it's side, so it's holes are now on it's side.  Then bolt a second plate from the side of the spindle plate to the bottom of the spindle (now side since we turned it on it's side).  This would add weight and possibly unbalance the Drive.  It might also provide a lot of stress from the side too.  I could add a third plate on other side as a supporter.  It would bolt to the side of the spindle plate, but only rest on the spindle.  That would balance the drive, but add more weight.  Brain hurts.  Hoping to find a better solution.

215

Show"N"Tell ( Your Machines) / Re: spindle connection...

« on: October 01, 2009, 01:06:52 PM »

That is it, except the difference is that my spindle is wider otherwise it looks nearly identical.  The B/C drive is identical.  The spindle covers up the access holes in the plate that go through to the drive's platter.  You can see the bolts in the top image with the spindle.  They are big, circular, and go through the plate and connect to the C Drive's platter.  The holes in the drives platter in the lower image is what that big bolts go into.  The spindle I have is wide enough to cover up about 1/2 the access hole.

I've thought about counter sinking those bolts so they are below the surface, but that's the rub, the plate gets bolted to the spindle first with countersunk bolts on the opposite side.  I can do one, but not the other, brain hurts.

216

Show"N"Tell ( Your Machines) / spindle connection...

« on: October 01, 2009, 12:38:31 PM »

Hello, I've run into a roadblock, and am wonder if you all can give me some tips or a work around.  I have a B/C drive from Doughty Drive, where a spindle plate is first connected to the spindle via 4 screws on the back of the spindle, then that assembly is bolted on the C drives platter.

Here's a close-up of what I mean...

spindle with plate behind it:


what the C Drive with it's platter looks like:


Now here's my issue, I noticed that HSD had a slightly more powerful spindle at the same weight and cleared it with Doughty Drive to make sure it would work.  Now that I'm at the custom plate building phase, I'm noticing that the spindle is slightly wider than the one in his picture, and this width covers up the access holes to connect the plate to the platter of the C Drive.  Do you guys have any suggestions on how to connect the spindle to the plate otherwise?  I could really use the help here.  This has me really down at the moment.

Barry

217

General Mach Discussion / advice please

« on: September 29, 2009, 01:04:22 PM »

I thank you for that site Tweakie.  I looked at it often in my own construction.  I agree with you too, that to really build your own machine, you gotta do your own research, ask question, design, have setbacks, improve, etc.  I know my machine isn't the greatest, but I'm proud of what I've done so far;)

Barry

218

Show"N"Tell ( Your Machines) / Re: CNC CONVERSION - 6" ATLAS LATHE

« on: September 28, 2009, 01:19:42 PM »

Does this sort of problem affect all things done with Mach 3, or just threading?  It looks like a major problem to me...

219

Show"N"Tell ( Your Machines) / Re: Ballscrews - Ground or Rolled?

« on: September 24, 2009, 01:21:27 PM »

Yeah, you haven't seen the rails, carriages, motors, wiring, electronics and BC drive, spindle, vfd drive, 220 line.  This thing is 6 axis.  I'm sure I bought off more than I can chew, but I like to tread in deep waters.

220

Show"N"Tell ( Your Machines) / Re: Ballscrews - Ground or Rolled?

« on: September 24, 2009, 12:49:16 PM »

yeah, you get the idea, everything is costing $$$$.  I remember when I first started, thought I could get this done in under $7K, laugh;)