On 16/04/15 14:48, Joe Gwinn wrote:
In article ,
Ignoramus29328 wrote:
On 2015-04-15, Gunner Asch wrote:
On Wed, 15 Apr 2015 14:03:31 -0500, Ignoramus29328
wrote:
On 2015-04-15, wrote:
On Wed, 15 Apr 2015 10:25:01 -0500, Ignoramus29328
wrote:
On 2015-04-15, Gunner Asch wrote:
On Wed, 15 Apr 2015 07:35:08 -0500, root wrote:
I have a c. 1980's Bridgeport clone and it came with powerfeeds that
are now dead (Harbor Freight, no longer offered). One only works in one
direction and the other is fried completely. I found the parts manual
for them online but no idea who made them originally. And as with most
HF items, parts are not available.
I want to restore the table feeds to manual but need the parts to do
so, and for that I need the diagram and part numbers to order...
Anyone have (1) and repair guide, (2) the parts manual, and/or (3) know
where is the "best" economical place to purchase used Bridgeport parts?
I'd appreciate any help!
Thanks,
Scott
Sarasota, FL
Scott.,...why not simply replace the power feeds? One can get
inexpensive units for $250 or less
http://www.ebay.com/itm/END-MILL-POW...-/331518583505
I should mention that Ebay may not be the least expensive place to buy
one.
As for the "fried" power feeds, know any electronic guys? Those power
feeds of yours may just need some TLC. Particularly the one that works
in one direction. Probably a simple switch that needs replacement
I wonder if Iggy could come up with some used ones?
All "Bridgeport power feeds", including Chinese, Taiwanese, American,
and other units, are **** and junk and very unreliable.
Unless you "really need" one, I would recommend against buying or
installing one.
Your right hand is more reliable than a "power feed".
i
I would have to disagree about the Bridgeport power feed. Mine still
works great and I have through the years used plenty of Bridgeport
mills with the factory power feed and never had problems with them
either. On the other hand, I have used many Servo brand power feeds
and they all sucked.
Eric
I sold a lot of bridgeports -- maybe 15-20 or so -- and almost none of
the power feeds ever worked. Including factory bridgeport feeds.
i
How old were they? And in what environment did they come out of?
Broken down factory where the machinery was beaten to death..right?
Right, but most other equipment survived those factories and none of
the power feeds did.
I had a bunch of electronic trouble with Chinese Servo clone from HHIP
that came with my Millrite MVI vertical mill. The problem was that the
speed-control pot kept burning out. I replaced it with a very robust
wirewound pot, and that soon burned out as well. HHIP supported me in
my various attempts to fix the unit, but I never succeeded for long,
and ultimately gave up. HHIP had had nothing but trouble from this
product, and ultimately changed suppliers. (I do have an electronics
background, but the circuit design was beyond redemption.)
So, I replaced the X-axis drive with Servo's low-cost line (built in
Taiwan), and have had no problems since. Cost was about what a new
HHPI unit would cost. (Some lathe work was needed to adapt the
Bridgeport kit to fit the MVI.)
Joe Gwinn
I've had an Align brand power feed on my manual BP for about 15 years
and no problems. I got fed up with manual winding and wanted a power
feed and the Align turned up and would retrofit a manual feed BP as is,
IIRC the standard BP had a different leadscrew for the power feed
models. I only have power feed on the long axis but am happy with that
as that is where most of the movement is. I don't use this 8 hours a day
but it does get frequent use.