• RME Gear & Apparel

Bolt Hole Patern Transfer

Shawn

Shawn

Just Hanging Out
Location
Holly Day
What method has bee best for you in transferring a bolt hole pattern from a piece to a sheet of steel?

Example, I need to make a transfer case mount and there is a pre-drilled circular bolt pattern in the case that I need to transfer over to a sheet plate. I have always used a cardboard template cut out and have been able to get close. But I'm looking for more of an exact.

Input?
 
Shawn

Shawn

Just Hanging Out
Location
Holly Day
ok, I have an idea. I'm going to buy some all thread, cut it into 3" pieces, sharpen one end and screw the other into the T case. Hold up the sheet to the sharpened ends and tap the sheet with a hammer to create the pattern.

;)
 
UNSTUCK

UNSTUCK

But stuck more often.
Shawn said:
What method has bee best for you in transferring a bolt hole pattern from a piece to a sheet of steel?

Example, I need to make a transfer case mount and there is a pre-drilled circular bolt pattern in the case that I need to transfer over to a sheet plate. I have always used a cardboard template cut out and have been able to get close. But I'm looking for more of an exact.

Input?
Click to expand...

Same idea, but use poster board. Lay the board over the object to be copied, then tap all around it with a hammer. It will leave an exact imprint of your object on the poster board, as long as you don't move the board while making your copy. You can then cut out the imprint and trace it onto your sheet of steel.

Hope that helps.
 
Shawn

Shawn

Just Hanging Out
Location
Holly Day
BroncoMama said:
I am insanely jealous of the fact that you are making a transfer case mount whilst I'm getting ready to go out into the frigidly cold garage and examine some Dana 20 bolts.
Click to expand...

It has been quite a chore mounting this HUGE thing and relocating everything...
 
Bodine

Bodine

One Call That's All
Location
WVC
Shawn said:
ok, I have an idea. I'm going to buy some all thread, cut it into 3" pieces, sharpen one end and screw the other into the T case. Hold up the sheet to the sharpened ends and tap the sheet with a hammer to create the pattern.

;)
Click to expand...

Pointed set screws work well when doing that also depending on the case you should be able to get the B/P dims from the manufacturer. Or get the radius and number of holes and a template can be made in a cam program.
 
M

Meat_

Banned
Location
Lehi
I thought you said you had this thing mounted already? Do you need to lift heavy stuff or something? Is that why you are anxious for me to come over to get the 40s?
 
Shawn

Shawn

Just Hanging Out
Location
Holly Day
Meat_ said:
I thought you said you had this thing mounted already? Do you need to lift heavy stuff or something? Is that why you are anxious for me to come over to get the 40s?
Click to expand...

mounted, unmounted, I have placed it many times. Building the cross member and designing the link attachments is finally done. Now I'm onto the actual "mounting of the case.

I have bee using an engine hoist for most of the lifting...;)
 
Kiel

Kiel

Formerly WJ ZUK
I did what you did on my stak output mount. Carboard temp. then hammered the holes and screwed them in to make sure they were good. Then plasma'd and just drilled the holed one size larger for ease. Fit no problem
 
B

bobdog

4x4 Addict!
Location
Sandy
Shawn said:
ok, I have an idea. I'm going to buy some all thread, cut it into 3" pieces, sharpen one end and screw the other into the T case. Hold up the sheet to the sharpened ends and tap the sheet with a hammer to create the pattern.

;)
Click to expand...

I like that idea, but depending on how exact you need to be unless you sharpen the all thread so that the points are exactly centered you will be off some. Any circle pattern can easily be laid out using a compass and some math.
 
BCGPER

BCGPER

Starting Another Thread
Location
Sunny Arizona
I've always used the round end of a ball pein hammer. Just place the round end over the hole, and tap it lightly with a second hammer. It will cut a perfect circle out of the paper. Install a bolt to keep it aligned, then move on to the next hole and repeat the process.
 
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