MFT hole plugs - 3D printed

[Crazyraceguy]

[member=76739]TomK_2[/member] you can rest assured that the OF1400 is far more is far more solid/tight than that old Craftsman unit (on its best day).....however, it may not be the best choice for use in that particular type of jig.
The reasoning behind that is the method of attachment for the copy rings (bushings). They have a quick and very simple "snap in" arrangement. It is great for popping the chip deflector and bushings on and off, in a tool-less manor, but there is a possibility of some slight movement. For most cases, were absolute precision is not the main goal, it's a worthy trade off.
When that need arises, the OF1010 is a better choice. There is an opposing thing going on there though. The copy rings, along with any other device that attaches to the base, are a bit more fiddly to install. They actually use 4 tiny screws, which allow for centering/adjustment. This is obviously slower, but the pay-back is precision.
The OF1010 is plenty of router for tasks like template work. It fills that space between a compact trim style router and it big brother OF1400 perfectly.  It is big enough for most uses and still not be overly heavy (over-kill).
Don't get me wrong, the OF1400 is great, but it is a bit much for a lot of everyday things.

There you go......way more than you asked for  [blink]

 

[Allano]

Yup, it's 1mm. I use a 45 degree bit in a palm router.

Calipered a handy UJK dog and the diameter at the chamfer is 22mm.

You should be careful when measuring this way. The dog has a very short 22 mm cylindrical part above the chamfered part. It is actually visible in your photo. If you only make a 1x1 mm chamfer on the hole edge, this cylindrical part will protrude above the board surface.

When I made my MFT board, I just kept adding more chamfer to the holes until the 22 mm cylindrical part on my UJK dogs would just clear the board surface. I think I am close to a 2x2 chamfer.

 

[ElectricFeet]

You should be careful when measuring this way. The dog has a very short 22 mm cylindrical part above the chamfered part. It is actually visible in your photo. If you only make a 1x1 mm chamfer on the hole edge, this cylindrical part will protrude above the board surface.

Doh. That explains everything. I was also measuring 1mm horizontally (like RMW) but when I measured vertically it was 1.7. Couldn’t figure it out. The roundover explains the extra 0.7mm.