Thread: drilling profile rails
4 Weeks Ago #1
Do all pillar drills hang enough to lean over the frame to drill? Once I've done the epoxy resin I will need to drill the holes for the profile rails so I'm looking into buying a decent pillar drill, I'm pretty heavy handed so I don't want to use a hand drill.
4 Weeks Ago #2
I don't quite know what you are looking for, but my best guess is a radial drill. I have got one in Nottingham (Alfreton Road). If it is the right tool for the job. It is similar to this https://www.google.co.uk/imgres?imgu...act=mrc&uact=8 PM me if you think this is any use.It takes all sorts to make a world, I am just glad I am not one of them.
4 Weeks Ago #3
Thanks but what i mean is when looking at various drill presses you put you material under it and then drill but i cant be sticking the whole frame under it lol, once ive leveled the frame and the epoxy resin has cured i will then be marking the holes out for the hiwin rails and then carefully drill and tap, ive not seen how people actually do it with drill press but i really dont feel comfortable using a hand drill.
4 Weeks Ago #4
You could try a magnetic clamp drill, or some sort of clamp-on stand with a hand drill.It takes all sorts to make a world, I am just glad I am not one of them.
4 Weeks Ago #5
I've just finished drilling and tapping my rail mounting holes in the frame, but this is BEFORE the frame is assembled and the epoxy added.
My plan is that when everything is assembled in place, moat made, etc I will put long bolts into the holes covered in grease. After the pour, when things are nearly set I'll take them out.
The epoxy will not stick to them and the threads will be clear. I can then lay the rails down and bolt them in place. This method means you can drill the frame on a normal pillar drill.
I used my cnc machine to spot drill mark the holes:
But as yours is not ready yet you can use transfer punches to mark through the rail and into the frame (with the rail clamped in the right place and aligned parallel to the other one). Select the right diameter transfer punch which just about fits in the hole in the rail, and tap with a hammer. The pointed tip will create a centre mark on the frame below:
4 Weeks Ago #6My plan is that when everything is assembled in place, moat made, etc I will put long bolts into the holes covered in grease. After the pour, when things are nearly set I'll take them out.
Last edited by Clive S; 4 Weeks Ago at 12:49 AM...Clive
4 Weeks Ago #7
Using a small drill press, the smallest ones, you could turn the base 180 degrees and clamp it to the table . Then drill, then move and so on.
But honestly you can not skip the drilling and tapping. I used a nice pro Makita 2 speed Rotary drill, new drill bits and Big Gator Tap and Drill Guide Block. Plus a clamp or two.
Using the Big Gator Tap and Drill Guide Block when tapping was a big help and i did not break a bit. Quality cordless drill with a machine tap also will help speeding the last part of the process.
I also use transfer punches as above.
Also drilling before mounting the rails against a straight edge ??? The acceptable error is not so much as you imagine it. If you do not do things precisely from the start you will have to open some rail holes further.
4 Weeks Ago #8
Thanks guys really appreciate your input, will look for a decent pillar drill that i can clamp :)
4 Weeks Ago #9Neil...
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