Gallery, Projects and General > How do I??

Gib Strip for a Capco Surface Grinder

<< < (2/2)

philf:

--- Quote from: Pete. on May 26, 2017, 01:40:36 PM ---If it's not a tapered gib then it must be screw and locknut. There's no reason at all why you couldn't make it in two halves.

--- End quote ---

Hi Pete,

A good idea  :thumbup: - or so I thought until I just checked the machine.

The travel is so long that one half of the gib would fall out as you were quite a way from the limit.  :(

Cheers.

Phil.

Pete.:
Well, to be honest the top and bottom angled faces don't need to be bob-on accurate since they do no work. If you made it in one piece you could cut the bevels in multiple set-ups.

PekkaNF:
IMHO three sufaces has to be pretty good on traditional non tapered gib strip, when it wears and the screw holes oval you don't want it all over the slot.

There are several choices, I still haven't made up my mind...even after readin old brittish poets like Geo H. Thomas et.al.
http://lh5.ggpht.com/_ozT1G3WqXg4/TUqsPuzQqeI/AAAAAAAALKM/HweM0rgDKQU/s800/gib.jpg

Pekka

philf:
I finally got round to picking up a nice flat piece of cold rolled 1" x 3/8" MS yesterday.

I decided the best way of machining the gib without ending up with a banana was to make a fixture to clamp the gib to and to machine equal amounts off both sides a bit at a time.



The clamping screws are a good fit in the fixture to minimise movement. I decided to do the machining in 4 160mm sections as the vice only has 4" jaws and didn't want too much overhanging.

Here's the gib with all its tapped holes and the fixture clamped in the first position. I think this is the first time I've used the angled vice.



Here's the end view after taking off approx 6mm on both sides (3 passes of 2mm each side).



With a bit of deburring with a file the gib looks good and has stayed quite flat.

Even though I think it will work as-is I'll probably try to scrape it before drilling and reaming a couple of location dowels. The adjusting screws push on rods angled to match the gib.

Phil.

Navigation

[0] Message Index

[*] Previous page