I'm pretty bored with isolation so I'm always looking for a project. We recently brought a drill press and as we have got a limited budget so that one was found from a scrapyard and later repainted. I'd attach some pictures if I could, but I don't see a spot to do so. Being able to remote the vfd control panel is a nice feature. 435 RPM -> 109 RPM
I usually buy NOS motors and used drives. The idea of being able to drop these speeds in a cost-effective way was very tempting. I would not have needed to make the mounting bracket if I bought this motor. Thanks RogueFab! I bought the RogueFab kit and, separately, bought a 6 foot 1 13/16 inch (about 46mm) steel tube and one other 2" pulley. Hmmmm, i was unaware of this possibility. The plate is a little bit of a pain to get in place while holding the motor, but other than that, i didn't have any issues. One suggestion that you might find useful is to parallel wire a pair of foot switches with your forward and reverse switch. JavaScript is disabled. Next we drilled a 40mm hole exactly in the cente of the the rotor, removing the ball bearing along with its assembly. Always wondered how you tap with a drillpress ? Next the rotor holes were enlarged to 5mm and we tapped the threads inside the shaft adapter. Live and learn.
Each installation will be different. Now to drive the drill chuck we need to mount the rotor on top of the main shaft. I like the setup you have for the jackshaft that makes everything nice and smooth. The end result is I have a standing drill press (with ceiling attachments so it won't fall over) that runs in the 300 rpm neighborhood (don't quote me on that, may be lower) that's got great torque. The arbor and everything is in decent shape it just majorly lacks in power and using a power strip for a power switch lately is getting old.
Drilling holes from 5/8" to 1" in metal used to be a chore, with bits grabbing and getting chipped. To drive the chuck directly we need to mount the stator arround the main shaft. Also, I guess there are cheaper options for the ESC than the one you used? Originally the motor is made for 10 cells which is nearly 42v and provided a decent speed so with the car ESC operating the motor at 6 cells (25.2v) the drilling speed will not be sufficient. All in all, none of the issues listed above are rogue fabrications fault, they supplied a kit that does exactly as it says, and does it with a very easy and adaptable installation. Not clear how the coils are connected. Now, bits cut like they are supposed to and holes are very clean. Drill Press Reduction Kit, lower RPM, more torque! on Step 6. You will also need a three phase motor and 220VAC. JavaScript is disabled. We made every possible effort to get this thing solved but for the time being the only solution that can help us get through is to grind the rotor!!! You are using an out of date browser.
Next to good bits and a good chuck, the DPRK is about one of the best things you can do for a little drill press like this. The drill press reduction kit is working fantastic. I have had the DPRK installed for a few years now and it has been a great addition! For instance, on a piece I was paying $50.00 for, we are doing the drilling in 1 hour with a jig internally, saving jobs and of course money! So we cut down the top half of the pully and later we flush cut the top of the adapter so help the rotor sit as close to the centre as possible. Without, you just burn through drill bits unnecessarily. It may not display this or other websites correctly. As you will notice, the kit doesnt really take up too much extra space and tucks-in pretty nicely. Excellent design. I was recently told to do the same with drill press, but I have very little experience in this area and your post helped me a lot with this.
i am kinda surprised that you purchased the parts off ebay when they are so readily availible to you locally. It requires a fair amount of consideration and time spent figuring out how to apply the parts to your specific drill press. I will get another one soon. Speaking of which.. the kit really WORKS! Next we coupled the rotor to the shafte adapter using six allen screws. Though I have heard that there are now versions that run on 115VAC. The outer casing is the hub containing all the magnets and its the rotor.
L185F, Modern Ag Competitor 4 shredder, Rhino tiller, rear dirt scoop, A very clean well thought out mod, I have to as though, what do you have tied up in it, VFD and 1hp 3phase motor, we cant figure in yoru time and odds and ends. I can easily count the revolutions as they spin by, and theres a chance that it might even be a bit TOO slow at its slowest setting. Nice. I've had my DPRK for about 3 years now. The drill press can go forward or reverse. So we switched the ESC with a more powerful RC Car ESC ratted at 150A and 6 cells lipo.
That's the advantage of a DC motor. Very impressive. To test the drill press we charged the batteries and started testing. I mean. you are using the tool in your shop and not in church.so. honestly, the noise is inconsequential. I placed my order Friday for next day delivery, after the mailing cutoff via Internet. The final shot (right):
Works with nearly all drill presses.
Nice job. Thanks guys, I think I'll use the drill press alot more now. This bolt on kit will double (2:1) or quadruple (4:1) the torque of your drill press at the spindle and cut the RPM by 50-75% (2:1 4:1)! And yes, they're all slightly different, so you'll have to do the homework you don't want to do. On to the reduction kit. So instead of messing up with gears and pullies we have decided to drive the chuck directly with the hub attached to the main shaft and the stator enclosed within. Its a very nice product! For a better experience, please enable JavaScript in your browser before proceeding. I just didnt care about it at all. I needed to lower the RPM of my drill press to allow for using a 3/4 inch annular cutter for making holes in half inch steel. I would really like to make this project and have the speed adjust ability on my drill press. This is a 27 pole stator with three phase running across the motor. Also had to buy new belts to get everything to work. Late 60's Craftsman if memory serves right. Was able to take an under $200 drill press from Lowes and make it into a decent metal cutting machine. I used some 1/2" X 7" hot rolled plate left over from another project. The previous setup was unable to drill hole above 10mm in metal sheets but with the new powerhouse we first drilled hole upto 20mm using a step bit without any problem. 2 years ago It's a tight fit and there's no room to really route the wires as neatly as I would like, but it works. Thank you for sharing how you did it. Excellent! I couldn't figure out how to re-belt it for the other way. So I bought a TECO L510 single phase 115 VAC input VFD and a 1.0 hp 56 frame 3 phase motor to make the conversion. Now as we undo the six allen screws provided on the motor casing and seperated the rotor and stator time to take the hall sensors apart as we will later use a sensorless speed controller. Loop has it right. Since I don't have any keyway broaches I did some careful measuring and found that the keyway in the pulley would still be deep enough to accept the key after removing .085" from the bore so I bored it on the lathe. It will be nice when we can get out and patronize local businesses again. Comes in handy when removing broken bolts or screws. The nut on top of the pulley is left hand thread but is only made of plastic. I haven't thought of using an old treadmill motor and variable speed. This kit is well thought out and came with every thing, including great instructions. Otherwise, most energy is spent on heating by friction, instead of cutting through the metal. for example: a 12v starter is a DC permenant magnent motor. If want your drill press to go slower and have more torque, this is the kit you should order.The 4:1 is our most popular kit, and the one we almost always recommend. Next we mounted the batteries inside the drill press housing thats now empty. I've cut over 100 holes without having to sharpen anything! Put the pulley I bought separately on the motor axle (I believe it was 13mm so I had to bore out my 1/2 inch pulley) which went over to the 8 inch RF pulley which turned the small supplied pulley. The next problem is with the speed controller. (In the next photo, the pulley stack is not installed yet)
You must log in or register to reply here. First drilling i did with the slower speed really highlighted the torque increase. But so far so good. Well like all the crazy project ideas we got, there is always a problem waiting right in the middle of the project, so there are two of them. they heat up too fast. I forgot about dual voltage warts, I may replace my battery with one. I did the same thing on one of my drill presses and I can assure you will not regret it. I tried it both ways, and ended up with the pillowblocks facing forward as shown. Its been a rough few weeks and I havent been making any efforts to get out into the garage to work on the truck project. Very nice work! Compared to the previous setup which is corded induction motor so we are bound to stay close to the socket but with the current setup we can operate cordlessly and with aconsiderableweight loss we can now move the drill press arround our workspace as per our convinience of working. This is not unexpected youll see the fix later on.
This allows you to vary the power while in use in response to the load as needed , like a variable speed portable drill. The only other type I found were cast iron and I didn't want to try to alter those. https://youtu.be/buIkQn4W9VI. 1 year ago I added a 10 ampere mini circuit breaker to protect the dimmer but rarely trip it. Great project! You must log in or register to reply here. Nice.. Thanks very much for the quality kit! I wish I could have had you make duplicates of all your parts while you were at it.I have the exact same drill press. Needs a wakeup call everytime we turn on the switch and might fell a sleep drilling holes larger than 10mm. I got everything mounted in the case, twice. https://electricscooterparts.com/motors48volt.html, https://electricscooterparts.com/speers48volt.html, https://www.alliedelec.com/product/m0-48/70230351/, https://sfbay.craigslist.org/scz/spo935428322.html, https://sfbay.craigslist.org/pen/zip935314644.html, https://sfbay.craigslist.org/eby/for934989502.html, https://sfbay.craigslist.org/sby/spo928302480.html, https://sfbay.craigslist.org/eby/spo934834173.html, https://sfbay.craigslist.org/nby/spo934758782.html, https://sfbay.craigslist.org/eby/spo934063194.html, http://www.r3vlimited.com/board/showthread.php?t=170390, If this is your first visit, be sure to
First I would like to thank rogue fab for their amazing customer service. It's up to the buyer to decide where to put each pulley, and at what height. The frustration I was having at my old setting of 215 RPM was not only the excessive speed, but the fact that the cutter would drag and eventually stall-out halfway through the cut. So we are going to use a 6mm thick metal plate with a dia of 125mm to act as the holder for the stator. 1 year ago It may not display this or other websites correctly. I used the kit materials and the instructions as a guideline and created what, for my purposes, is a great machine.
I dont know how you would drill into stainless steel in production without it. I got a 1hr Baldor NOS for $75 shipped about a year ago.
I build lightsabers, and I have always hated being at the mercy of shapeways and other suppliers for the little parts that I need. I should be able to use some 18V batteries to get make a battery powered drill press. The motor came off pretty easily and I put the plate on so that the added pulleys were to the left of the machine as you look at it. The other benefit that I havent tested yet is the increase in useable torque. I bought a 10" X 10" X 6" case with a hinged cover to mount everything in. Besided we will also make a dedicated battery pack which can provide us further extended operating time and also added with a BMS unit so that we wont drain the battery packs. Ratted at 10 cells and 350 watts of power initially sounds like good enough but this crap ESC just wasnt able to get the juice out of the hub motor and made us doubt the power of this huge motor. This kit uses cold rolled steel shafting, high quality cast-iron block mounted greasable ball bearings, and ships raw (the main plate is not painted). JavaScript is disabled. 5 stars for the Drill Press Reduction kit! You may have to flip some pulleys over, or mount them at different locations. I purchased a 4:1 speed reduction kit for my old Delta 17-900 drill press. Also, it is very important that the shaft size of the kit you order matches your drill press motor. There are better ones but that will work and be reliable. Fortunately, Joe over at RogueFab saw my previous thread posts and contacted me about my drillpress issues, and we talked for a while about his reduction kits and how they would be a low-cost way to give me better cutting capabilities, and finish up all of those 2 speedholes in the monolith crossmember. I've had the DPRK for a couple of years now and I consider it one of the best add on purchases to any tool I have in my shop. I like how you worked out the problems as you Progressed. The quality of the whole thing is very nice for such an affordable product. Didnt seem real. Want to slow down your drill press? I have a project of drilling around 300 1 1/16" holes into 1.5" schedule 80 316ss pipe. So we rewired the hub motor. Now it takes more amount of time for current to travel all three sets as they are connected in series and thus the speed of rotation is very low. I got the motor for $40 and the rest of the stuff including the cable was about $250. This page was generated at 10:36 AM. I had to switch the VFD to the opposite side as the door latch hit it and the cover wouldn't close.
The quality is great. Teco drives are pretty reliable. Besides that there are some improvments that we have planned to make such as the top enclosure, as the spinning rotor is close to the head during the drilling process, so we are waiting for our 3D printer for that to get done. Even though I am modifying it (Drill Press Reduction Kit), what you sold me is exactly what I wanted, and is perfect. I installed the tach pickup in the lower belt housing and glued the magnet to the spindle pulley. Question Absolutely amazing customer service!!! If the power supply from the treadmill is missing or unusable, one solution is to use a 1000 watt rotary dimmer and a full wave bridge rectifier. The only real tricky part is figuring out which way to install the large motor plate (pillowblocks facing forward vs. facing rearward) as this will affect the belt lengths and tension that you can apply to the forward belt that turns the drill spindle. I've even been able to use the DPRK to set up the speed good enough to mill some aluminum. Not cheap but I only paid $300 for the drill press so I think it was worth it. Next we hooked up hole saw with 36mm dia and later moved to a 40mm dia holesaw and the drill press seems to handle both of them without any problem. would be a massive upgrade that takes under an hour MAX to install. Heres the holes I am trying to drill, and the kit that I received: (Diet Coke not included)
This is a woodworking drill press, so the spindle speeds are substantially higher than what you really want for metalworking. To make sure that this hole is exact in the centre we did made final cuts on the lathe machine as there is very limited clearance between the rotor and the stator. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); This works great on my Harbor Freight 20" drill press. To sum it all up, this is a great kit! We have worked with the drill press for our upcoming project to drill a bunch of holes in metal tubing and sheets and this thing can hold upto an hour of drilling time which is more than enough for us. One word of advice i would suggest, i bought a harbor freight 12'' drill press brand new to use this reduction kit on, because it uses metric belts that are slightly smaller than 3/8 i would highly recommend starting off with a drill press with 1/2'' belts as they said on the "tech" portion of the website.
That might be a fun project. A nice problem to have.. I will more than likely be hooking it up into a 240 volt line anyway I'm just curious. They do not audibly whine like VFDs and they are really easy to set up. The reason being the face that this thing has got plenty of torque and these days you can easily find one for cheap as well. I received a phone call a few minutes later telling me I had missed the cutoff. After all the aggravations Ive dealt with through the years with the high speed low torque slowest setting of the machine I was blown away. Just for kicks, here's a brief summary of the drill press story. The rotor along with the shafty adapter is then slided onto the shaft and we tightened the mounting nut in place. Buy it and have fun with your project. I did something similar (but a lot less elegant) with my drill press about 10 years ago using a Teco FM50 VFD. It would be cut up like crazy and have trouble staying on, I would imagine. like https://www.aliexpress.com/item/33041320042.html although those don't list any voltage rating so I don't know if they'd actually be compatible with your set up. The one we initially decided to go with is a cheap Chinese one thats avliable to drive hoverboard motor. Established in 2009, we are the largest online community of Kubota tractor and equipment owners. The spindle pulley fits onto a taper on the spindle. Building handrails for my boss. I'm now down to a cool 112rpm, and ready to start doing a bit of custom fabrication of my own. http://www.factorymation.com/FM50-2531skZ-Hch-IvD94pTyL3TNOKs7AbrioaAiz6EALw_wcB, https://sherline.com/product/33050-dc-motor-speed-control-units/, http://dealerselectric.com/FM50-101-C.asp, http://dealerselectric.com/L510-201-H1-N.asp. I'd get a 1 HP 3 phase motor and this VFD. youve been warned! The annular cutter is the way to go for making holes but the drill press needs to run at a much lower rate (240-3400 rpm on my Rigid drill press). Question I am off to hunt for an old drill press now.. All times are GMT-8. I haven't checked into it. Delivery time was quick and kit was easy to install. As to the point everything seems to go flawless so we made sure they look flawless too, time for the paint job and matt black it is. This will not only reduce the amount of work and the probablity of getting this drill ruined but if we can implement the whole idea sucessfully, the efficiency of this whole powerhouse is going to be preety good, so let hopr for the best. Thankfully this time we got the rotor spining perfectly arroun the stator without touching it. I did also have to use a link belt as the one supplied was too long. You may have to purchase a separate belt if the one we provide does not fit.
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