MACHINE SHOP TIPS #56 Hole Layout Pt 2 of 2 tubalcain

Tubalcain shows how to accurately layout & ream holes by 3 different methods. part 2 of 2

Category:

Education

Tags:

• tips
• #56
• hole
• layout
• pt
• rev
• oct
• 2011

[Nator187]

You should link those two channels in the description of your first video. It makes things easier for us using our mobile phone. Thanks

[mrpete222]

@Nator187 Good idea, but how is it done?

[DieselCrawler86]

Did you fabricate the bench block yourself or did you purchase it from some one?

[mrpete222]

@DieselCrawler86 Got it at an auction.

[yeshelloyou]

I've watched nearly all your video's several times. I find them quite addictive, your an excellent teacher. I'm disabled and cant do some of the things you show. You make it look so much fun and so very interesting that by hook or crook I am going to have a go. I struggle to even walk so this should be interesting! I have even just ordered a 9x30 bench lath. Thank you.

[madaboutpix]

impressive, keep the great videos coming!

[ArtemiaSalina]

@alsledge46 Yes, I agree. Mr. Pete mentioned the dowel pins were 2 thou over and that's what introduced the error. I think the DRO example was smack dab on and the other methods were accordingly less accurate when you account for the dowel pin error.

[alsledge46]

The DRO error is from the oversize pins. Measure the left side of one pin using a square to the left side of the next pin using the inside of the caliper. This gives a true "center to center" measurement without factoring the pin diameter which will always lead to error. I do love your work as others also seem to. Hope this spurs an interest in younger people.

[pinhead1304]

best videos on youtube

[rkward101]

@mrpete222

There is a Video Tools tab/pull-down menu that allows annotations to be added to any video. You can type or paste you link there. Keep in mind that the annotation text does not have to match the link text. In other words, you annotation might just say "Click here for part 1", but the link would be "you tube.com/watch?v=t6evpRPPlrY"

Hope this helps ...

[nosloppyagape]

do you use a plug gage to calibrate your calipers?

[thumpervids]

perhaps a good way to verify the differences would be to measure with your calipers when you scribe the mark, then again after you have punched the mark.

[pseudorandomly]

I've watched the whole "tips" series, and I'm not even a machinist. But I have parts made for me quite often, and it's useful to be able to talk to them about techniques and how things can be done. So thanks for putting these out!

I think the errors in the DRO method happened at the drill press. Despite your attempt to keep chips from getting under the block, you lifted it slightly when you slid it. When you removed the block from the table, you could see chips where the block was.

[anvil1231]

Thank you