Bench Drill Press speed adjustment
|Steve Wan||01/01/2010 14:19:24|
|131 forum posts|
Wonder have anyone of you tried to modify the press drill speed from 500rpm
factory setting to around 100rpm or lower for big drills or counterbore drilling?
Lets share your design or solution, very grateful
|Nigel McBurney 1||01/01/2010 19:53:13|
945 forum posts
Hi I have a Fobcobench drill for 40 years and had the same problem,and thought a lot about finding a way to get a low bottom speed,but never found an ideal solution as the speed changing must be quick and easy to operate,and there is not much room within the existing belt guards to mount a speed change system.about 15 years ago I solved it easily,I went out and bought a surperb Meddings one inch capacity 3 mt pillar drill in very good condition ,bargain at £320 solved all the problems as its got a two speed gearbox plus five belt speeds,of course you could used an electronic type speed control of the motor of your drill,but it can cost as much as buying a drilling machine,I got mine in the last recession and now might be another good time to find one.Aother way would be say find another smaller cheaper machine and arrange a system of belts with a counter shaft to get a single speed of 100 rpm and only use it for low speed jobs,it will not take up too much room
|Steve Wan||02/01/2010 14:07:27|
|131 forum posts|
Hi Nigel McBurney
Many thanks for your reply last night I found a website www.Hemingwaykits.com
in it a section covering modifications of bench drill press using 3 pulleys only.
I have started making the modification also not so fortunate to get a replacement as my workshop is very small. Will test it and if it worked I shall post photos here to share around
My bench drill press is China made but I was able to improve some parts like making
a lever crank to move the drilling table up and down at ease. Only bigger models have
the crank lever.
So once I'm able to overcome the speed will be another break through!
Keep in touch!
|138 forum posts|
Uncertain of the source of this one but I think it was on Google's Popular Mechanics/Popular Science magazines archives
I have uploaded it to
I don't know MEW's policy on embedded live links. To be safe, I have changed the url to render it inactive. Please change "hxxp" to "http" to render the link valid.
You will require an Acrobat reader app.
|138 forum posts|
Risking being a nuisance but after looking at the Hemingway kits this reference seems very similar (another pulley combo is added using the drill column as support). Again, my comment on avoiding a live link.
Hope of some use.
Image can be viewed in Irfanview (freeware) - among others
Edited By Dunc on 04/01/2010 01:20:04
|Peter Ellis 5||31/01/2021 16:21:09|
|51 forum posts|
The link no longer seems to work.
Has anyone else managed to install a speed reduction on one of these cheap Chinese drill stands ?
|Martin Kyte||31/01/2021 17:33:08|
2608 forum posts
As they have provided a tool in the toolbar to embed links I would say it's allowed. Next to embed youtube
|800 forum posts|
Before trying a large drill check what diameter on the spindle is driven. Trying to drive too big a drill can result in a twisted spindle when it snatches.
|not done it yet||31/01/2021 17:55:25|
|6438 forum posts|
Yup , nothing like increasing the torque on the machine, by a factor of 5, to overstress a cheap chinese drill built to the minimum specs.🙂
|Dave Halford||31/01/2021 19:36:43|
|1818 forum posts|
To be honest you need to buy a drill with one of these in it.
This is just a random photo off the web and not intended to be a advert.
|Gary Wooding||01/02/2021 10:14:24|
|909 forum posts|
I replaced the 1ph motor on my Naerok drill-press with a 3ph of the same power, and added a VFD. Works a treat.
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