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Semi-enclosed track question

Thread Status: Hello , There was no answer in this thread for more than 60 days.
It can take a long time to get an up-to-date response or contact with relevant users.

lawstraljan16

Active Member
Jul 9, 2012
445
63
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For a 7mm shaft, what size ball router would I need to use? Obviously thinking in advance for after lamination.

Also, if using a semi-enclosed track, would you still be able to tie the line on the rear of the gun or would you have to tie the line on one of the shark fins?
Thanks

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8mm but it not very easy to coat routed out wood, you might be better to cut out a 10mm grove, fill with epoxy & then rout out a 8mm track. the problem is you will be limited by the router bit shaft size anyway.
Personally I prefer using a premade track.
What do you mean by a semi enclosed track?
 
By semi I mean half way between normal track and enclosed track.

So cut out a 10mm track, fill it with epoxy and cut out 8 would be best?

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Yeah ive looked at those. But I kinda like your idea, would save me a few dollars, and also diy made hehe.

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Thats very innovative. You are one clever man foxfish!

Instead of carbon, would a hard plastic work good enough?

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Perhaps, but the carbon tube is made with epoxy & will adhere to the wood, I am not sure if plastic is a good option for a serious weapon!
I found the square carbon tube on EBay for a good price but honestly the neptronic track is great...
anyway... try a search for JK West, he build loads of poured epoxy track guns in detail on this forum.
 
Thanks foxfish. I thought of something, see what you think and give an honest opinion.

Cut a partition of the gun wood where the rail is placed just like what you would do for the neptonic rail. Lets say for a 7mm shaft and for semi enclosed, id cut about 6mm deep and 10mm wide. Take that piece or another piece of wood with the same dimensions and use a round router to cut a hole of 4mm deep and 7.5mm wide. Then coat the rail guide on the inside (circular part) with something like fibre, carbon or suggest another material?
Then glue in the rail guide.

How does that sound?

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Well to start with I am still not sure what a semi enclosed track is? I mean most router bits have a 6mm shaft but trying to find (buy) a 7.5 - 8mm ball end bit is not always easy anyway! So if you can find a bit with a 8mm ball & a 6mm shaft (slot) there is not much stopping the spear breaking out of the track! the idea of an enclosed track is two stop the spear rising or wobbling so a good fit with a decent amount of meat to the slot is important... personally I think you should use an open track or buy an enclosed track but hey it is your gun & you must do want you feel is best :)
 
By 'semi enclosed' track I mean instead of totally covering the spear, the track will be half way of the spear (3.5mm of the 7mm).

Any reason though why you'd prefer an open track rather than an enclosed track? I ask to learn, not argue so dont get me wrong. Im still 50/50 on what ill do and hearing opinions always helps. Some say enclosed or semi enclosed, some say open. Urgh

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Ok like I have already pointed out a router bit will have either a 4mm shaft but far more likely a 6mm (1/4") shaft so at the very best you will have a 4mm slot but more likely a 6mm slot. The only way to get a 3.5 slot would be with a custom made router bit or buy a track.
I have made 3mm slots buy using the carbon tube & cutting the slot with a straight 3mm router bit.
Do you know what I mean?
 
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