M VII plastic rack details

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kenbu
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Post by kenbu »

Has anyone checked into having these made by a 3d printing service? Seems like a perfect application.

Ken
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fredsheldon
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Post by fredsheldon »

kenbu wrote:Has anyone checked into having these made by a 3d printing service? Seems like a perfect application.

Ken
And you can have them print out a couple of guns while they are at it. :D
Fred Sheldon
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heathicus
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Post by heathicus »

kenbu wrote:Has anyone checked into having these made by a 3d printing service? Seems like a perfect application.

Ken
Absolutely does seem perfect. I'd be interested in the price. A plastic latch release button for the front face shield on my motorcycle helmet broke a while back. I couldn't get a replacement from the manufacturer, so I made a model of it in Google and shopped it to a couple of 3D printing services online. Just a small L-shaped piece, about 1.5"x1"x.75". The quotes I got were all around $60. I found the same helmet on clearance for $40, shipping included.
Heath
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-10ER - SN 39722, Born 1950, Acquired March 2011, awaiting restoration
damagi
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Post by damagi »

I have a set of mark VII tubes with the track intact if anyone is interested...pm me if you are interested.
Mark 7, Pro Planer, Jointer, Bandsaw w/Kreg, Biscuit Joiner, Belt Sander, Jig Saw, Ringmaster, DC3300, Overarm Pin Router, Incra Ultimate setup

JWBS-14 w/6" riser, RBI Hawk 226 Ultra, Bosch GSM12SD Axial Glide Dual Compound Miter Saw

-- I have parts/SPTs available, so if you are in the Seattle area and need something let me know --
damagi AT gmail DOT com
drdale
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Gear Rack

Post by drdale »

It has taken months but I finally got the aluminum gear rack back from the shop. It has 2 sections 18" long. I tried to attach pictures but the site keeps telling me the files are too big but I have saved them in photoshop as small as it will let me.

Anyway, I think I will be OK with the info you have already given me. I wonder if you can comment on the details of the rivets that will attach the rack to the steel tube. I assume I just drill out the old ones. I have rivets that will fit in the holes but I have several lengths to choose from. How long should the "compression" part of the rivet be?

The rivet holes in the rack are in two stages, the inner half of the hole is smaller than the top half. I assume the larger hole can accommodate the expanded part of the rivet.

Any other advice would be appreciated as I don't want to screw this up after waiting so long to get this made up.

Dale
drdale
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Gear Rack

Post by drdale »

It has taken months but I finally got the aluminum gear rack back from the shop. It has 2 sections 18" long. I tried to attach pictures but the site keeps telling me the files are too big but I have saved them in photoshop as small as it will let me.

Anyway, I think I will be OK with the info you have already given me. I wonder if you can comment on the details of the rivets that will attach the rack to the steel tube. I assume I just drill out the old ones. I have rivets that will fit in the holes but I have several lengths to choose from. How long should the "compression" part of the rivet be?

The rivet holes in the rack are in two stages, the inner half of the hole is smaller than the top half. I assume the larger hole can accommodate the expanded part of the rivet.

Any other advice would be appreciated as I don't want to screw this up after waiting so long to get this made up.

Dale
nothungry3
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Post by nothungry3 »

Dale,
Reading this thread left me hanging.
How did things work out? Cost, performance, etc.
nh3
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r_mack1969
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Post by r_mack1969 »

I'm with nh3...how'd the racks work???
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JPG
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Post by JPG »

He is still waiting fer an answer to de rivet questions.:eek:

So, the counterbored holes are indeed to allow the rivet head to be below the root of the gear rack.

The rivet length should protrude inside about 1/8 to 3/16 inch before 'pulling'.

I would use steel rivets for this.:cool:



FWIW, getting the original rivets out can be somewhat challenging.:D File down and drive into the tube(pin first). They be kinda 'hardened'.
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