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On the HomebrewPCBs list, what people came up with to drill holes in PCBs is to mount a drill below the table, with a laser dot or crosshair projected on top, and raise the drill from the bottom. --

Ah, yes. I've now got that one, but was really looking for the /09 details, and the 13611... Thanks, 73, Julian, G3YGF

Did you see this ? http://ftb.ko4bb.com/manuals/100.15.206.33/Ailtech_7514_PANFI_Precision_Automatic_Noise_Figure_Indicator_Service_Manual.pdf Michael

I'm looking for a manual for the AIL/Eaton 7514 option 09 PANFI, and the AIL 13611 Noise Figure meter/receivers? Just wondered if anyone still has one? Julian, G3YGF

etch, then laminate, then drill worked very well for me.? 30K RPM from a Proxxon hand piece (I used the 120 volt one, I think) carbide drills, and it goes right through a PC board. For metal work,

Well Harvey that does work and offers a possibility of using the 91S just to mark the holes rather than to drill them totally through and that would work like a punch to guide the final drilling. Sam

I'd be tempted to reverse the order of the steps.? Etch first, then drill and route. Harvey

Well I was going to use my LPKF 91S to do the drilling and routing and then toner transfer followed by toner tranfer foil like PulsarFx used to use. If there are issues with the holes after that then

Sam, I have solved my problem for a total cost including table of $50. I'm not about to make my own PCBs. This is for drilling enclosures. Pick a reference point and zero the DRO at that point. Then

One problem with pre-drilled holes and then toner transfer may be incomplete toner transfer around the periphery of the holes. Professional manual PC drillers drill from the bottom, with the top of

Reg, One option would be to use the CNC to drill all of the holes and then lightly sand the PCB for the toner transfer process. I'm going to try that as the drilling process is the most intensive

My Clausing lathe and mill will get DROs in due time. But this will be my 'go to' for things like small boxes and front panels as it will be configured specifically for that all the time whereas the

Sam, Thanks for the tips. I'll look into those. The crosshair tool is yet another tool change. There are a lot of tools for setting absolute reference positions. Have Fun! Reg

Hi Reg, I remember seeing a bombsight type device that can be added to a drill press to give you a crosshair for that. I have to see if I can figure out where I saw that. Also for doing front panels

Herman, Beautiful work. Thanks for the comment about using a center drill for the initial hole. They are *much* stiffer. The only real issue is there is very little daylight between the table and the

FWIW The larger DROs cost more than the drill press and table did. I don't need .001" locations for instrument and radio panels. 0.1 mm (<0.005") is good enough.

Mine came from temu. My sister and I have had a steady stream of stuff from temu arriving for many months. Very good customer support.

To answer my own question, I see Temu has them for $1.99, they are carbon fiber, not SS. I have not used Temu and read various levels of customer service, some say it's great others say terrible. "Do

There are larger DRO's available, as well as remote readout sensors for milling machines. Not $2.50, though. Harvey

I could suggest either CNC, or a mill with large DRO's. Harvey