Extend Y-axis handle on 833TV?

[mmcmdl]

I've put these on BPs before for the same reason . Pick up another 2" .

 

[borges1]

I mounted my X scale on the back...then moved it to the front. If for no other reason than the rear is under assault by chips and cutting oil it's a big nasty mess back there. Relatively clean up front. On my mill this also freed up more Y travel to the rear, it's not an 833 though.

I actually built a lexan box to contain a lot of the chips similar to a design i saw on here - it really helped with the mess. I am hoping long term to have the scales and switches all on the back of the table with a drag chain corralling everything. I think i can engineer an elegant solution based on some other attempts ive seen once i have the scales to actually ponder it. I'll be sure to put whatever i come up with on here.

 

[verbotenwhisky]

I was out in shop today starting to install a front way cover on my 833TV. Pretty easy to attach the material to the front of the sliding table. So I did that first which let me play around with the other end to see how to best attach it.

My key problem is that there's almost no room left for the way cover to fold into. Crank Y all the way out (towards me) and the handle has precious little clearance.

And....as I messed with this, it occurred to me that the "closeness" of the handle to the table already costs me something. Y travel is the most limited dimension on the 833 and I've lost some (perhaps an inch) with the safety switch for the x-axis power feed. The travel is lost because the ball end of the handle starts to intersect with said switch....preventing further movement of the table outward. There may be possibilities for moving that safety switch (although the back end of my table has a DRO track in place) or finding an alternate switch that would have a lower profile.

But, it occurs to me that I could move the handle further out from the table. Placing it 1.5" to 2"further out would allow me to regain some Y-axis travel and provide space for the landing of the way cover.

I use a DRO, so I don't absolutely need to move over the scale markings. But it might be that the easiest extension would be an adapter that slipped over the existing shaft and then was turned down to match the shaft so that the existing handle could move over. If I thru drilled the new piece, I could attach everything with a longer version of the existing M8 bolt that is used now. It would stick out more, but I don't think it's likely to be a problem for me.

Thoughts?

My solution was to machine a 3" long Y Axis extension:

 

[rronald]

That's pretty much my plan.

Have you been happy with it? Any concerns or issues?

 

[coolidge]

I actually built a lexan box to contain a lot of the chips similar to a design i saw on here - it really helped with the mess. I am hoping long term to have the scales and switches all on the back of the table with a drag chain corralling everything. I think i can engineer an elegant solution based on some other attempts ive seen once i have the scales to actually ponder it. I'll be sure to put whatever i come up with on here.

I have been in chip management mode for a couple weeks now with upgrades.

 

[verbotenwhisky]

That's pretty much my plan.

Have you been happy with it? Any concerns or issues?

If you are asking me in concern to my post the answer is no, it works perfectly, I had to build a couple extinctions to hold the end of the accordion cover out past the end of the mill and give it a place to rest when retracted but a couple pieces of 10Ga worked for that.

 

[rronald]

I didn't make my extension as long as verbotenwhiskey's. Mine is just over 30 mm longer than stock. But that's enough that I can now cut up to (and a little beyond) the fixed jaw of a 5" vise since I've gained almost an inch of travel. And I believe I have enough space to terminate the bellows for a way cover. I decided that function was key, so I didn't wait to purchase stock that would have matched the OD of the dial.

 

[verbotenwhisky]

I didn't make my extension as long as verbotenwhiskey's. Mine is just over 30 mm longer than stock. But that's enough that I can now cut up to (and a little beyond) the fixed jaw of a 5" vise since I've gained almost an inch of travel. And I believe I have enough space to terminate the bellows for a way cover. I decided that function was key, so I didn't wait to purchase stock that would have matched the OD of the dial.

View attachment 509471

Nice work.

 

[rronald]

After some fitting, I decided to add more length and re-made the extension. I now get just over 50mm of extension. I then whipped up some 3d printed mounting blocks and added the way covers. I gain about an inch of extra travel and the way cover looks better than I'd hoped.

 

[rronald]

Still need to "blue" it for rust prevention. And add a slight relief on the outer extension end (since the handle has about a 1/2 mm of protrusion near its ID that makes a bit of daylight visible in the first pic.

My 8mm bolt selection ended at 80mm for length. Need something close to 100, so I used a nylock nut and some threaded rod. It's good enough that I'll leave it this way until I have something else that justifies a Bolt Depot order (good pricing but shipping makes a single item order too expensive.)