The previous blog covered the “easy holes” set and this is about the remaining holes. This may sound confusing, but I hope I can explain properly.
When you place the TCT bit’s 3mm tip bit into the proposed hole position (assume the hole has not been drilled),
You may notice the 3mm locator holes on the jig for the 3mm pins are positioned over the 20mm dog holes on the board making it a tad difficult to align the jig.
There are two approaches to solve this:-;
1. The included user manual documented method using the Parf Locator dogs (included in the jig kit).
2. Using the UJK Parf Revision Dogs (bough separately)
Method 1.
The TCT bit has to be relocated to the alternative jig’s position (assume no hole and bit moved)
and the large holes on the jig are located above the existing dog holes.
With the bit moved the holes now align,
and alignment could be made using the supplied locator dogs,
With this setup, the remaining dogs can all be drilled.
Method 2.
The TCT bit remains in the same position and using purchased revision dogs,
they can be inserted into the existing dog holes,
Before continuing, I thoroughly recommended all the existing holes get chamfered so the jig can lay flat along the board… can get away without as long as the jig is clamped down. Should not be an issue as the holes will eventually need chamfering… just doing it early.
Now the jig can be located using the 3mm pins,
and with this setup, you basically have the “easy hole” setup.
For either method, clamp the jig (optional, but recommended), attach the drill, the chip catcher, the dusty…
If you want to know what happens next, you’ll have to watch the video,
Remember my 3rd. pin conundrum from the previous blog, these revision dogs came in sets of 3 and like the pins, no idea why the need for the 3rd. except as a spare.
If your first cut is too short... Take the second cut from the longer end... LBD
