Bolt Circle Layout and Machining with a DRO

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Bolt Circle Layout and Machining with a DRO

Рет қаралды 82,912

13 жыл бұрын

This video shows some of the common ways to layout and machine a bolt circle pattern. Several methods are show to calculate a bolt circle. The use of a Digital Readout (DRO) is demonstrated as well.

Пікірлер: 51

@gordonagent7037 8 жыл бұрын

simple, easy explanation for us newbie viewers, well done, Gordie

@henderson1914 10 жыл бұрын

Nice video. One comment on the content. I believe the DRO is like most other CNC's in that zero starts at 3 o'clock, not midnight, as on a clock face. Your first hole was -0.375 in the X axis, meaning starting at zero X, zero Y, that move would have been to the right or to the position of 3 o'clock. Thanks for taking the time to make the video as I know it takes a lot of effort. I offer this comment as only constructive, not to tear down your effort.

@TheManFromAlaska 11 жыл бұрын

Thanks for appreciating the effort put into this video.

@felixharindra7081 8 жыл бұрын

Thanks for posting and sharing. I'm totally understand about how to operate it. So nice!

@yash1152 6 жыл бұрын

Can we have a video/series/playlist demonstrating all DRO functions ??? Anyways.... u got a new subscription. 👍👍👍

@rlewis1946 13 жыл бұрын

The DRO sure makes hole patterns easy to make. Thanks for posting! In a future video, please give us a "walk around" of your mil and how the DRO is attached to your machine Cheers Roy Lewis Atlanta, Georgia USA

@dharmendrasingh-sr4de 5 жыл бұрын

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@gerarddoyle2891 3 жыл бұрын

Really good clear video, one point which would be good to give more emphasis is the ‘start angle’

@Peeseebeeb 5 жыл бұрын

I found the download page for the second chart completely elusive. However, I did come across an online calculator that provides data for any number of holes in both imperial and metric. I would really like to get to the specific download page. Would you be kind enough to provide the exact url for the download.

@evantoland9822 10 жыл бұрын

Great video! Thanks for sharing.

@jerryblankenship9908 2 жыл бұрын

Where can I find a chart for circle patten that will work with my DRO

@moms762 7 жыл бұрын

I tried that link but instead of going directly to the template page there's a bunch of crap, like lincoln college of technology and Tire Rack etc. Can you update or do you have another link ? Thanks

@sixteenstone007 12 жыл бұрын

Can this be done on a more basic digital readout? My readout has no bolt circle function that's visible like that but I bet it's still capable.

@jamiebuckley1769 8 жыл бұрын

lol got it figured out just add 1 to the number of holes you want to drill ex 6 holes punch in 7 then you can use 0 as a start angle and use 360 as an end angle and you will finish at the first hole you already drilled and your done. worked for me .

@VTSPQR 12 жыл бұрын

Great video! I prefer a rotary table though...it is just faster, and easier + if other machining is necessary, like cutting a groove for a seal ring, or captive slots for bolt heads. btw, I have no DRO, or CNC in my shop.

@Myway953 4 жыл бұрын

good video. starting angle is ok BUT the problem is the end angle that is what beats me. could you explain how to work out END ANGLES THANKS G

@jamiebuckley1769 8 жыл бұрын

i have a sino 3 axis dro. my problem is after i go to drill my second hole after arrowing down the co-ordinates dont change from bolt hole one co-ordiates. the numbers stay the same for bolt hole 2-3-4-5-6 . dont know what i did but theres got to be a button i pressed or somthing. i tried 14 times different ways and i cant solve the puzzel. any help would be appericiated thanks.

@douglasbattjes3991 9 жыл бұрын

Oh,, really like your video, WELL done

@daveprototype6079 9 жыл бұрын

Nice video You can use the dials and indicators as well if no DRO Thanks Dave

@yash1152 6 жыл бұрын

Dave Prototype How, can u please tell me. Thanks !!

@Daniel-vq9zb 5 жыл бұрын

@@yash1152 just use a travel indicator to keep up with your location

@drpipe 5 жыл бұрын

Really good I'm glad I watched until the end...when I saw all the charts my heart sank. Great work , all I need now is a dro ! I want to get a chinese import I'm guessing they have these functions ? Thanks for the info really good.

@tomherd4179 8 жыл бұрын

Your angle setting made sence to me the 0 or 30 degrees and 360 for a complete circle. Now my instructions showing me how to do a bolt hole had me put in 30 degrees for the start angle and 300 for the end with 5 holes. WHERE did the 300 come from? If you know I would appreciate how they came up with it.

@laurencestonard4593 2 жыл бұрын

its your display (brand software ) for 7 holes on a 6 hole and you will come back to zero

@tomherd4179 2 жыл бұрын

@@laurencestonard4593 I will have to give that a try. But I can see where the text instruction to English may have been incorrect. What you suggested really makes sense. Again thanks!

@laurencestonard4593 2 жыл бұрын

@@tomherd4179 Used the Zeus book 40 years ago, that's what he had in the video, you can find a copy on line if you want to look at it before you buy, as for the DRO, they have a common chip set and there is apparently, 2types from 2 China manufacture's, they are then boxed in a different box, so the China DRO are similar, they have reversed engineered, the one's I used many years ago, we had Sony and Hinerman (?) displays which cost $5000 not $ 200! good luck the manual is next to useless....

@tomherd4179 2 жыл бұрын

@@laurencestonard4593 I usually try to get used higher grade equipment, but being 76 years old and just making ideas in my home shop the $5000 would eat up way too much Social Security for me to afford. Thus, I end up with a confusing China Knock Off. Note: some of the US and other good manufactures items, drill bits, end mills, mics, etc. just "FEEL" better made than the China imports., and hold up longer as well.

@che3380 4 жыл бұрын

Very nice video,how can I get the chart?

@douglasbattjes3991 9 жыл бұрын

Man fro Alaska, Went to the springlakecnc site, but it just redirects you to different sites. Any Ideas?????

@trialnterror 11 жыл бұрын

Could you make a video on how to set up a vise and part to drill Multiple holes using a dro , so you'd have to find 0,0 on the part then go to the Coordinates as per drawing!

@melayupig 10 жыл бұрын

very good

@metal0484 13 жыл бұрын

i went to the store the other day and bought myself a set of dividers. im a welder/fabricator and im trying to find the formulas or whatever to layout hole patterrns that way, i watched my old man do it but he doesnt have the time or patience to show me.

@aprilunger7319 6 жыл бұрын

I think you can help me with programming my DRO gcs9003db+ I am having great difficulty finding center for bolt circles

@geoffdilley8057 6 жыл бұрын

Your readout won't find the center for you unless you did your boring on the mill and maintaned the center at xy.0000. Otherwise, you have to find the center of what you're drilling or milling with a center finder or an indicator, moving the x and y. Once you manually find the center, zero out the x and y on your readout. When you're in the bolt circle function the value will be all 0.0000 for the center. That is the point it uses to trig the bolt pattern with the diameter and number of holes you enter.