Ball End Router Bits

[land shark]

Just a dumb thought but wouldn't a dove tail bit work and reduce friction also you could put a flat stock Teflon or nylon in there easier and further reduce friction.

[foxfish]

Not dumb at all - might well work but you will still have the problem with the router bit shaft measuring 1/4'' (6.35mm) so if you are using a 7mm spear there wont be much tolerance to stop the spear jamming in the grove when you fire the gun?

[devondave]

Foxfish , just an idea , is it possible to drill a 6.5mm hole with an extension drill like for theading electric cable though wooden standard lamps etc ? Not sure how straight this would be or if a bit that small is feasible , also you probably need to drill the hole early in construction and then machine too it . Sorry if this is bol**cks but it's going to be hard to get a 6.5mm ball cutter with a smaller diameter shank !

[foxfish]

At the end of the day it would be easier to but a American imperial measurement spear & one of these ? Enclosed UHMW Track for Spearguns

[land shark]

just an idea , is it possible to drill a 6.5mm hole with an extension drill like for theading electric cable though wooden standard lamps etc

they have a tendency to wonder

[land shark]

how about just over routing it and glass bedding the spear in like you would a regular gun stock

just a thought

[foxfish]

How about I use one of these rare beast !!

[Magpie]

Where'd you find one? Don't lose it eh!

[Pastor]

It would get pretty hot on a stock removal pass, possibly even causing some ignition Could you not laminate up a pair of semi circular grooves, then cut a slot in the top and finally use that burr to clean out the track?

[foxfish]

Would you believe Keyside on the bridge - 7.5mm ball 3.2 shank = £5.00.

[foxfish]

Yeah you are right mate but good for finishing the final track.

[Pastor]

Absolutely, if you can get most of the waste out of the way first that could do just the job. How are you thinking of holding it? A Dremel type tool mounted under a table?

[Magpie]

Ha ha, right under your nose!

[foxfish]

I would think OMD will make up something for me but i have got 3 more derlin tracks to use up first - happy days

[land shark]

with that close of a tolerence I would wonder about tool wonder