Page 28 of 74
Posted: Tue Apr 10, 2012 8:01 pm
by ramses
Get a clamp type knurler rather than a bump type. I've heard small lathes don't have the rigidity or power to use the bump type.
Posted: Tue Apr 10, 2012 11:55 pm
by jackssmirkingrevenge
This is
the Sherline offering:
Haven't seen much good said about it though, and even their own instructions make it sound more like some kind of black art to set it up.
I did find this
home brewed version, hmmm...
Posted: Wed Apr 11, 2012 1:07 am
by Crna Legija
I just did knurling yesterday at trade school. The first bit of the crosshatch one be was really shit even the teacher didn't know what was with it.
Posted: Wed Apr 11, 2012 6:29 am
by jrrdw
Crna Legija wrote:I just did knurling yesterday at trade school. The first bit of the crosshatch one be was really crap even the teacher didn't know what was with it.
Are you making something or is this just a practice piece?
There can be a few reasons this happens. Bad knurling wheel axle, dirty knurling wheel, changed pressure or speed, tool became misaligned etc...
Did you use the same tool for all the knurling on this piece? Did you hear/feel any chattering?
Posted: Wed Apr 11, 2012 7:10 am
by Crna Legija
jrrdw wrote:Are you making something or is this just a practice piece?
just practice it started off as a 50mm round bar.
There can be a few reasons this happens. Bad knurling wheel axle, dirty knurling wheel, changed pressure or speed, tool became misaligned etc...
it was a brand new, knurling tool i un-boxed it, speed and pressure never changed. Maybe with the pressure it could have moved but wouldn't it have made the hole peace bad?
Did you use the same tool for all the knurling on this piece? Did you hear/feel any chattering?
yep keep on pushing in till i got the right depth then turned on a very slow feed rate.
Posted: Wed Apr 11, 2012 10:32 am
by jrrdw
Maybe with the pressure it could have moved but wouldn't it have made the hole peace bad?
Depends, if the wheel rubs the side of it's housing or has enough side pressure at first then centers it's self with rotation it could start off bad then get good.
You should examine the tool next chance you get for scoring due to side load, slop in the wheel at any and all directions etc...
Posted: Tue Apr 17, 2012 8:17 am
by Labtecpower
Posted: Tue Apr 17, 2012 11:32 am
by jackssmirkingrevenge
Shineh! good work
Posted: Tue Apr 17, 2012 11:52 am
by Labtecpower
now I just need my own lathe
are you planning on making your own knurling attachment anytime soon?
You'll like the finish you can put on your workpieces
Polished the front piece, looks better now
I'm happy I was able to finish this thing, my hand hurts like f*cking hell
probably broke it last saturday night
Posted: Tue Apr 17, 2012 2:21 pm
by jakethebeast
NICE, shineh! Cant wait to get my hybrid finished
Still needing few parts, main thing is the receiver pipe, but i should get it soon!
The chamber electrode is curing atm, some test tomorrow with 10mm barrel
Posted: Tue Apr 17, 2012 2:29 pm
by jackssmirkingrevenge
Labtecpower wrote:are you planning on making your own knurling attachment anytime soon?
You'll like the finish you can put on your workpieces
I'll probably get the sherline one for the time being, it's a long time since I bought any attachments anyway
Polished the front piece, looks better now
I'm happy I was able to finish this thing, my hand hurts like f*cking hell
probably broke it last saturday night
You should see the other guy, right
Posted: Tue Apr 17, 2012 3:19 pm
by Labtecpower
I'll probably get the sherline one for the time being, it's a long time since I bought any attachments anyway
If it doesn't work well you can take it apart and make the design showed
You should see the other guy, right
Happy I didn't do that, if I hit him my hand would probably have looked better
a wooden barn is slightly harder, but the brick wall after that was a tad bit too much...
I probably won't have to tell some alcohol was involved...
Posted: Tue Apr 17, 2012 8:22 pm
by Fnord
Might as well post this where it belongs...
Fnord needs a part.
Specifically a pulley insert for a drill press. Those of you who have the facilities to fabricate one will already know roughly what I'm after, since it's on top of the spindle in your drill press
I'll get precise dimensions if anyone is interested, but this picture is approximately what I'm looking for. Mine is a little over 1" wide, I believe.
The only part that I'm not sure about is the internal teeth that drive the spindle. Harbor freight presumably gets around the tricky milling by casting the teeth, but it doesn't appear to be working very well.
Posted: Tue Apr 17, 2012 8:32 pm
by ramses
Internal splines are a pain in the arse and generally require special tooling (broach).
Posted: Tue Apr 17, 2012 10:24 pm
by cannon monkey
i was bout to say i can make that! but then i noticed it needs internal work and i cant do that just yet
