How to Measure Drill Press Runout
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- เผยแพร่เมื่อ 8 ส.ค. 2024
- On this week's show, I demonstrate how to measure the runout on your drill press. I hope you enjoy the show.
Please don't forget to like and subscribe and click the bell so that you don't miss notifications of future episodes of the show. As always, I want to thank you for dropping in to the channel and taking the time to watch this week's program. It is very much appreciated.
I work on drill presses. This came up in my feed. You're absolutely right saying that one needs to start with a standard that's perfectly concentric. Not as easy as it sounds. To give an example, I went through a box of calibrated gage pins to find a handful that were concentric on the same axis as a press. Using a drill as a standard is like flipping a coin. Same goes for anything else that either isn't straight and perfectly concentric. I'm talking tenths, not thou. As an example, my own main machine - I have five presses - sees .0002-.0006 runout with a 1/2 Rohm Spiro chuck throughout its entire range. A NOS Jacobs 34 runs .0007-.0018 throughout its range on the same machine. It's important to indicate the full range of the chuck, not just a single point. Like you, I also polish the tapers. I have a bench buffer and use lightly abrasive compounds aimed at jewelers with a denim wheel. Once in a while, felt. Decent arbors are inexpensive; sometimes it's easier and ultimately better to install a new one.
Same with polishing an internal taper, and that's where a Foredom TX flexshaft comes in. Then there's the play in the quill that needs to be taken care of, yadda-yadda. There's a lot to this, more than folks usually think. Same goes for indicating. As you'd mentioned, it's easy to gather an erroneous value. Imagine how that works with tenth indicators. A magnetic base is not an option; it's a necessity. Personally, I use Noga stands. I'd suggest turning the motor pulley for lower vibration. Really, one would have to write a novel to explain all this in detail and include every step. If you have a question, I'd be happy to post back. It seems like your audience works with wood, so having extreme accuracy and consistency isn't terribly important. A 1/64 is a bit over 15 thou, so a runout that 3-4 thou isn't such a big deal. Good luck.
This is some great information Felix and I appreciate you taking the time to type it all out in your comment. You are 100% right that there are many different factors that affect the runout in a drill press and any one of them can affect the next. You are also correct that the drill presses that are used and intended for this video demonstration are for woodworking and having that absolutely "perfect" runout factor isn't as important as say milling steel parts for a precision machine. Thank you for tuning in to the show and taking the time to leave your comment. It is truly appreciated.
Your thoughtful and well-illustrated videos walked me through the shopping, purchase, setup and initial testing of this same Rikon drill press. I still haven’t found the manual, so thanks for graciously sharing your expertise. Got mine new but already set up. Now I can work my way backwards to test it with a digital indicator as delivered - and if necessary - test it again after removing and cleaning the chuck. Also, 👍👍 for the hidden tutorial on how dial indicators!
I'm glad that I could help George. That is the whole purpose of this channel, to help people and I'm glad that on some levels, it's succeeding. Thank you for tuning in to the show and for taking the time to leave your comment. I truly appreciate it.
Excellent! I am setting up a new drill press and learned so much from your excellent video. Thank you!
I'm glad that you found it helpful Eric. Thank you for tuning in to the show.
Thanks Kenny. I purchased this very model of the Rikon drill press and followed your setup video. This additional info was good to see as well. I’ll have to do the runout test later this week. I’ll need to seek out a dial indicator... perhaps. Not sure I’m overly concerned considering what my drilling needs are. I loved an earlier comment that another mentioned...” he was happy to have his drill press stay on the bench”. Cheers and thanks for your series of videos.
Glad that you enjoyed the show Phin. Good luck with your new drill press. I hope you enjoy it. As for the runout test and equipment, the old saying holds true. If it isn't broken, don't fix it. In other words, if the drill press is working perfectly for your needs, don't fret over 2-3 thousandths of an inch. Thanks for tuning in to the show.
I have never tested my drill press for run out. I have always found that work pieces line up well during assembly. I never new that cleaning in the areas shown could make the difference. Thanks to this video, I will now check during normal cleaning and maintainance. Thanks for a great video Kennny.
Glad to hear that you found the show useful Andy. I appreciate you tuning in this week and taking the time to leave your comments. Thank you.
@@acutabove_woodworkings Very useful Thanks. Amazing how much I don't know even at 60 years old I still learn things almost every day. Thanks for sharing this information.
@@andyfarmer759 If there's a lot that you don't know at 60, can you imagine how much I don't know at 52? LOL. We all can learn something new every day. There's always something to learn.
Very informative video. I never knew that chucks are consumables and that replacing the chuck can resolve runout issues.
I'm glad that you were able to take something positive away from the video. Thanks for tuning in to the show.
The last few minutes of the presentation covered the other areas that could cause problems. Dust and grit on either of the sides of the jaws in the chuck is possible. Metal machinists and their machines are held to quite tight tolerances. But the blue print will always have a measurement plus or minus and X amount. If tighter tolerances are required that is where grinding and polishing come into play or in woodworking, sanding to the line. Shooting for tight tolerances on wood working machines is chasing your tail. The wood is going to move on its own due to moisture anyway so there goes your "perfection". Good video on using a dial indicator.
Thanks for the kind words on the show Dwight. I agree fully with what you say about accuracy and woodworking. Pretty hard to be 100% accurate on a product that moves depending on a variety of conditions. Either way, it's nice to get the drill press set up as accurately as we can expect and I was surprised at the number of people who had questioned about run-out and how to measure it. Glad that you liked the show. Thanks for tuning in and for chiming in with your experience. It's appreciated.
Hi Kenny, my drill press is so old that I am happy if it stays in the same place when I am using it.
LOL. This gave me a great morning chuckle John. Thank you for that and for tuning in.
This got me to thinking about my old Delta 12" benchtop that I bought in '97, so I did the test. Surprisingly, I had barely .001 at the chuck and a little over .002 at the end of a rod 5" down from the chuck. The rest of the machine is rusty and beat up, but I guess I don't have to worry about runout. Don't remember if getting the table 90° has been in one of your videos, but would like to see how you handle that part. I need to get a new table and want to make sure that it's setup properly. Love your builds and Alt Tue as well - Chris
Sounds like your old Delta is running just fine Chris. Glad to hear that you are enjoying the channel. Thanks for tuning in and for taking the time to leave your kind words and your show suggestion. It's very much appreciated.
Thanks, that was useful.
Glad to hear that you found it useful. Thanks for tuning in to the show.
Kenny, hmmm, now I know why my drill press drills oval holes..lol. Seriously, good information now I will have to check mine out, never have. Thanks
Glad that you liked the show Paul. Truth be told, it's not something that I was thinking about doing as a show topic until it was requested be several viewers. I figured, if there are several people asking for the show, chances are, others will find it useful too. Glad to hear that you will be checking yours now. Thanks for tuning in to the show sir.
You should look at the Nova Voyager variable speed drill press. Its a direct drive, so the motor does not hang out at the back making it more compact. Speed control from 50 to 5000 RPM at the turn of a knob. I love it. I considered the Rikon, but on further investigation read comments that it can make a lot of noise when cold, and since my shop is an unheated garage, this was a factor. The Nova is virtually silent.
That's a nice looking drill press David. Pricey, but nice. I'm glad that you like it and are enjoying it. I would be interested to see if you still like it after a year of use. I'm sure you will. Thanks for tuning in to the show and for bringing the Nova Voyager to my attention. It's very much appreciated.
@@acutabove_woodworkings In Canada, the Rikon variable speed 17 inch drill press costs $1450, the Nova Voyager 18 inch $2000 CAD. Not a huge price difference, and well worth it for the features. If you cant justify the higher cost, there is the Nova Viking 16 Inch for $1400 CAD, a little less swing, but cheaper than the Rikon and the DVR motor on either Nova drill press is fantastic. You can tap holes, run in reverse yada yada. No I dont work for Nova/Teknatool, just happy with my purchase.
@@woodysranch2690 The model that I am testing on this show is the bench top 30-212 variable speed press. It's $599.00 CAD. I do like the sleek look of the Nova though.
Good detail, and that’s how it’s done. We always want perfection but to have that you need to calibrate and check dial indicators and the loop never ends.
It is definitely an endless loop of checking and calibrating. That goes for any tool that we want accuracy from. At some point in time, we have to decided how inaccurate our accuracies can be and still be acceptable. Thanks for tuning in and for chiming in with your comment.
Hi Kenny! Still liking your Alt-Tuesday shows. I have the floor standing Nova. When I received it, it was so bad on run out that I just filmed it and sent it to them and they sent me a whole new quill assembly. Just what you want to do, buy a new machine and then rebuild it. Now, when I am near the farthest the quill will extend I think the runout is still significant. You have given me the impetus to check it. And now is a good time since I am in the middle of doing the table with the gears and am just about to remove the old table from the drill press table so I will have the metal table showing. Finally, I am kind of wondering if the chuck itself while turning the key doesn't cause the 3 teeth holding the bit to perhaps throw the bit out of alignment. Only one of the teeth being say the first one to move could pressure it over a little creating your remaining runout. In any event, I am not anal retentive so I think your not worrying about this is the correct path to take. Regards, Bill
Glad to hear that you are still tuning in to the Tuesday episodes of the show Bill. You just never know what you are going to see on a Tuesday. Could be anything from tool maintenance to me ranting about the lack of quality in appliances that are sold today. You just never know. Glad to hear that you've been inspired to check your press. Good luck with that. I hope the measurements are favourable. Thanks for tuning in sir and for chiming in with your thoughts. It's appreciated.
The runout on my Bosch PBD 40 is absolutely insane.
At first I thought it might be a "monday version" as we call it here in Denmark, but it turns out that, even though it is quite an expensive chuck, it is of quite low quality, and guess what, it is intended for hammer drills...
That just doesn't sound right Henrik. I guess it just shows that expensive doesn't necessarily mean quality. Thanks for tuning in to the show and for chiming in with our experiences with runout.
made me laugh so i thought i would share. My uncle looks at a part and said " Precision is not my name" . I will never be perfect but will always try.
That's a great saying. Thanks for sharing it and for tuning in to the show.
You could have knocked that quill out of the chuck and clean both the inside of the chuck and the quill where it fits into the chuck. That could easily knock off a couple of thousands.
You're 100% right on this. The joint between the quill and chuck as well as where it connects into the drill press can easily be fine tuned just with a cleaning. Thanks for tuning in and taking the time to leave your suggestion. It's appreciated.
Why didnt you mention the spindle? I measured my chuck and it was 18 thou. I removed the chuck and measured the spindle: 10 thou. Ive got two problems.
This show is about the method used to measure the runout. The same procedures apply whether you are measuring the chuck or the spindle. Thanks for tuning in to the show.