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Drill press & cross-slide vice
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vandersandtc
Hi All
I am new to this list so herewith a small introduction. I have built a few 4 axis polystyrene cutters as well as a 3 axis router table. I mainly use these for hobby use (radio controlled flying). I have also written some cnc programming software for 2 and 4 axis foam cutter use to generate gcode from dxf drawings. I am sure that I will learn a lot from this group. Now my question : I bought a cross-slide vice yesterday and my first thought was 'Hey, if I stick some steppers on this sucker, mount it on my drill press then I might have a cheap mill' - I suppose a lot of people have asked this question before. I would like to hear your comments please. Regards Coert |
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Been there and done that. I used the 5" version from harbor freight for
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around 60.00 I had to take a lot of slop out of the drive mechanism and made some stepper motor mounts. I install Torrington needle thurst bearings on each axis. I used it to cnc drill some stepper motor mounts. The problem is that you cannot use a drill press as a mill because of the slop in the spindle assembly. The enco mill drill tables for $119 is a better deal in the long run but figure out how you plan to do the spindle first. Dan -----Original Message-----
From: vandersandtc [mailto:vandersandtc@...] Sent: Wednesday, October 30, 2002 12:52 AM To: CAD_CAM_EDM_DRO@... Subject: [CAD_CAM_EDM_DRO] Drill press & cross-slide vice Now my question : I bought a cross-slide vice yesterday and my first thought was 'Hey, if I stick some steppers on this sucker, mount it on my drill press then I might have a cheap mill' - I suppose a lot of people have asked this question before. I would like to hear your comments please. Regards Coert Addresses: FAQ: FILES: Post Messages: CAD_CAM_EDM_DRO@... Subscribe: CAD_CAM_EDM_DRO-subscribe@... Unsubscribe: CAD_CAM_EDM_DRO-unsubscribe@... List owner: CAD_CAM_EDM_DRO-owner@..., wanliker@... Moderator: jmelson@... timg@... [Moderator] URL to this group: OFF Topic POSTS: General Machining If you wish to post on unlimited OT subjects goto: aol://5863:126/rec.crafts.metalworking or go thru Google.com to reach it if you have trouble. I consider this to be a sister site to the CCED group, as many of the same members are there, for OT subjects, that are not allowed on the CCED list. NOTICE: ALL POSTINGS TO THIS GROUP BECOME PUBLIC DOMAIN BY POSTING THEM. DON'T POST IF YOU CAN NOT ACCEPT THIS.....NO EXCEPTIONS........ bill List Mom List Owner Your use of Yahoo! Groups is subject to |
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Van Der Sandt Coert
I hear what you're saying about the slop in the drill press. Another idea I
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thought of was to mount a hand router stationary above the cross slide. Aren't routers supposed to be made for lateral pressures? -----Original Message-----
From: Dan Mauch [mailto:dmauch@...] Sent: Wednesday, October 30, 2002 6:21 PM To: CAD_CAM_EDM_DRO@... Subject: RE: [CAD_CAM_EDM_DRO] Drill press & cross-slide vice Been there and done that. I used the 5" version from harbor freight for around 60.00 I had to take a lot of slop out of the drive mechanism and made some stepper motor mounts. I install Torrington needle thurst bearings on each axis. I used it to cnc drill some stepper motor mounts. The problem is that you cannot use a drill press as a mill because of the slop in the spindle assembly. The enco mill drill tables for $119 is a better deal in the long run but figure out how you plan to do the spindle first. Dan Confidentiality Warning ======================= The contents of this e-mail and any accompanying documentation are confidential and any use thereof, in what ever form, by anyone other than the addressee is strictly prohibited. |
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Yes routers are intended for side load. Now the problem is that most
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routers turn at 18000 RPM, which depending on the size of the cutter and the material to be cut, will be too fast and will burn up the cutters quickly. About 4000 rpm would be better. Dan -----Original Message-----
From: Van Der Sandt Coert [mailto:vandersandtc@...] Sent: Wednesday, October 30, 2002 10:19 PM To: 'CAD_CAM_EDM_DRO@...' Subject: RE: [CAD_CAM_EDM_DRO] Drill press & cross-slide vice I hear what you're saying about the slop in the drill press. Another idea I thought of was to mount a hand router stationary above the cross slide. Aren't routers supposed to be made for lateral pressures? -----Original Message----- From: Dan Mauch [mailto:dmauch@...] Sent: Wednesday, October 30, 2002 6:21 PM To: CAD_CAM_EDM_DRO@... Subject: RE: [CAD_CAM_EDM_DRO] Drill press & cross-slide vice Been there and done that. I used the 5" version from harbor freight for around 60.00 I had to take a lot of slop out of the drive mechanism and made some stepper motor mounts. I install Torrington needle thurst bearings on each axis. I used it to cnc drill some stepper motor mounts. The problem is that you cannot use a drill press as a mill because of the slop in the spindle assembly. The enco mill drill tables for $119 is a better deal in the long run but figure out how you plan to do the spindle first. Dan Confidentiality Warning ======================= The contents of this e-mail and any accompanying documentation are confidential and any use thereof, in what ever form, by anyone other than the addressee is strictly prohibited. Addresses: FAQ: FILES: Post Messages: CAD_CAM_EDM_DRO@... Subscribe: CAD_CAM_EDM_DRO-subscribe@... Unsubscribe: CAD_CAM_EDM_DRO-unsubscribe@... List owner: CAD_CAM_EDM_DRO-owner@..., wanliker@... Moderator: jmelson@... timg@... [Moderator] URL to this group: OFF Topic POSTS: General Machining If you wish to post on unlimited OT subjects goto: aol://5863:126/rec.crafts.metalworking or go thru Google.com to reach it if you have trouble. I consider this to be a sister site to the CCED group, as many of the same members are there, for OT subjects, that are not allowed on the CCED list. NOTICE: ALL POSTINGS TO THIS GROUP BECOME PUBLIC DOMAIN BY POSTING THEM. DON'T POST IF YOU CAN NOT ACCEPT THIS.....NO EXCEPTIONS........ bill List Mom List Owner Your use of Yahoo! Groups is subject to |
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Dave Dillabough
Another issue is that most drill press spindles use a taper to mount the chuck. These tapers are not designed for side loads so you would have to come up with a different way to hold your cutters. You do not want a spinning chuck to come off while you are milling.
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At 08:20 AM 10/30/02 -0800, you wrote:
Been there and done that. I used the 5" version from harbor freight for |
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turbulatordude
Of you are intent on this approach you will find that cheap drill
presses not only have crappy bearings, but the spindle is not stiff. The rack and pinion gear that drives the spindle is very very sloppy, and there is no adjustment. that pretty much eleminates that from being a part of the CNC. unless you can figure out how to compensate for a backlash of something over an eight of an inch. for drilling, you have a chance, and if you do very light loads, you can make a cutter stabilizer to take the side loads. not complicated or too hard if you have access to a lathe or mill. and last but not least is the machine ridigity. with only a very slight pressure drilling with a 1/16 drill into aluminum, you can visually see the machine flex. The XY tables for $110 are a great start, a trim router for another $50-100 is getting much better and then buliding a fixed mount for the router on a plunging Z axis is not too hard or expensive. Of the 4 HF el-cheapo drill presses ($39 to 49) I have one that the chuck falls out of regularly, but the bearing and spindle are decent. I have one that the lower bearing is not seated. the bore is too big and the bearing slips. I have one that the spindle is noticbly sloppy in that you can feel the play. the last one is 10 years old and is not a valid unit for review. Dave --- In CAD_CAM_EDM_DRO@y..., Dave Dillabough <dgd@b...> wrote: Another issue is that most drill press spindles use a taper tomount the chuck. These tapers are not designed for side loads so you wouldhave to come up with a different way to hold your cutters. You do not wanta spinning chuck to come off while you are milling.freight for mechanism andaround 60.00 I had to take a lot of slop out of the drive mounts.made some stepper motor mounts. I install Torrington needle thurst ofThe problem is that you cannot use a drill press as a mill because $119 isthe slop in the spindle assembly. The enco mill drill tables for firsta better deal in the long run but figure out how you plan to do the yourthought was 'Hey, if I stick some steppers on this sucker, mount it reach itcomments please. be aif you have trouble. there,sister site to the CCED group, as many of the same members are THEM.for OT subjects, that are not allowed on the CCED list. Google.com toDON'T POST IF YOU CAN NOT ACCEPT THIS.....NO EXCEPTIONS........ be areach it if you have trouble. there, forsister site to the CCED group, as many of the same members are EXCEPTIONS........OT subjects, that are not allowed on the CCED list. bill |
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JJ
Of you are intent on this approach you will find that cheap drillI pulled out my quill, drilled and tapped two 10-24 holes pointing toward the quill, one from the front, one from the side. Inserted two brass screws with nuts to lock them down, and reduced the play some. The remaining slop comes from the quill spline fitting into the pulley at the top. Regards, JJ Be Kind, Be Careful, Be Yourself |
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turbulatordude
ditto !
I did that to my old, origional drill press. I used brass screws with wingnuts to let me lock in the spindle. I tried milling with a cross slide vice. I was able to take cuts as deep as 0.005" in aluminum. one problem revealed itself when wheil cranking, I rested my hand on the top belt guard. the cutter took a nose dive into the part. I didn't push, just rested, but the extra weight and the flex in the machine changed the cutting depth. I think i got the idea from this list or the 7x10minilathe list and someone advised me how to remove the spring safely. Dave --- In CAD_CAM_EDM_DRO@y..., "JJ" <jj5412@e...> wrote: stiff.Of you are intent on this approach you will find that cheap drill sloppy, twoand there is no adjustment.I pulled out my quill, drilled and tapped two 10-24 holes pointing brass screws with nuts to lock them down, and reduced the playsome. The remaining slop comes from the quill spline fitting into the pulleyat the top. |
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