Armor CAD Drawings

[Rick DeBruyn]

I have a MK1 project that has its armor cut down so I will need to fabricate all the armor, has any one produced CAD drawings or dimensioned plans? Any help would be appreciated.

[Jon Bradshaw]

I got these drawings from another thread on this site. I think they are the only drawings on this site.

[Jon Bradshaw]

More of the same. Come to think of it I'm not sure they were from this site, I've had them for about a year.

[RichardT10829]

i am in the process of trying to get card patterns made for Mk1 armour, i will keep you all posted, from the patterns i will be able to write them into CAD form or for a CNC program if people want to get them cut that way.

Rich

[Jordan Baker]

There was a whole entier thread made not to long ago about the drawings for the carrier. There were those posted giving the outline shapes and I posted a bunch of handdrawn ones with the hole placements.

[RichardT10829]

I think that was the thread the above pics also came from, i believe they were posted up towards the end of that thread Jordan.

[Rick DeBruyn]

Hi all,

Thank you for the excellent information & discussion.

Since my original post I have been in discussions with a local fabrication shop, which among other fabrication activities have a steel water cutting machine which they say is accurate to 7/1000 of an inch. I am going to deliver 2 of my (fairly complete) Mk1’s to their shop they will produce cad drawings then water cut the plate.

If any would like to add their name to the list we could collectively lower the production costs. Email me at “rick@aztecinspection.com” . The fabricator is in central Alberta, Canada.

I will keep the thread updated as to how the production proceeds (with costs) as I am advised from the fabricator.

Before I give the go-ahead to the fabricator to cut the plate I would like to provide the CAD drawings for comment from any that are willing to double check the dimension accuracy (please email me if you would check).

I plan to give the attached side armor drawing to the fabricator to assist in their CAD drawings (more to come as I can measure and produce them), can any comment on its accuracy? As I measured the rivets there seemed to be slight differences from carrier side to side and even on the measurements from the same side…perhaps the problem is that in the riveting process they (rivets) don’t flatten completely central to the drilled hole.

Thanks, Rick

[RichardT10829]

from what we discussed via email the measurements provided on the rough drawings were all wrong (for a canadian carrier anyway) i produced dxf's but they need corrected with size etc i spent little over a week making them, but without the correct sizes from an unmolested carrier they are a risk of being slightly out. It will be easier to drill the plates on the carrier as per Martyns method, what would be good is the water jet could cut out the center bulkhead easily and all the viewing visors on the front armour. keep me posted Rick but if you have got the outer dimensions of the plate done the rivet holes are easy enough. when i measured the remnants of the side armour (minus the rivet heads) the holes were 10mm and the counter sunk diameter was 10.8mm but i could not measure counter sink depth as my vernier is missing.

send me what you got dxf wise matey but if you have got the outer plate measured right, it will save me a 5 hour drive to Kevins house to measure his canadian armour

i will try and get some ply blanks cut from your current spec's and try them against my carrier.

[RichardT10829]

right, the college have cut out two blanks for the side armour, so i will collect and try it on the carrier, at least i will be able to accurately plot the bottom holes but cant help with the uprights as they have all been chopped off.

[Lynn Eades]

Thanks for posting your pdf. If they are accurate, they will be really helpful.
Cheers.

[RichardT10829]

Rick, are those two carriers yours ?


I have collected the blanks so i can hopefully get them retro fitted tonight and post up the results tomorrow. I am confident we can produce something accurate for the large numbers of people in our predicament


"the system works"

[Rick DeBruyn]

Richard I’ve been fortunate enough to track down 4 Mk1’s. Between the 2 almost complete UC’s I will be able to obtain all “un-molested” measurements needed to produce armor for the cut down units I have.

It would be nice to have a couple users/owners from the forum double check my measurements, what is the forums unit preference; Metric or Imperial? I used Imperial assuming that was the original units used back in the 1940’s.

As I previously posted, I noticed some unexpected slight rivet-hole differences when measuring the side armor. I talked to Rob L. & he thought it was probably due to inconsistent flattening of the rivets during manufacture…what do you think? As suggested in a previous post, the most accurate solution would be to remove the rivets from original plate to get the factory “specs”.

As you can see from the photos the UC’s are rough and in need of a lot of “elbow grease”, also I will need to obtain fair bit of newly manufactured & NOS parts, etc. to finish them up. I plan to have at least one done by next summer for the “Alberta parade tour”.

[RichardT10829]

On the contrary Rick they are four gorgeous vehicles !!! and iam green with envy ! i think your right about the rivet holes, and i can only suggest that the plates are drawn up without them ? that way they can be drilled on the carrier, failing that if you used teh mk1 mortar carrier the frames are all still in situ so should get spot on dimensions for the holes from that i would think. i have the blanks at my place now but my car failed its mot so have had to drown my sorrows with a £400 fix it bill. will have the results for you tommorow as i still have remnants left i should be able to see if the plate fits or not

[martyn]

Ok here we go this is how we did mine, make the plates drill the plates as best you think, offer them to your hull tack weld them in place, then build it up bit by bit after your happy its all going to fit weld the front behind where the frames would be, take it off and then make your frames,then mount the frames and drill through your plates on the vehicle its the best way to make it.

[RichardT10829]

and its always best to go from experience cheers Martyn i suppose from carrier to carrier the holes and rivet types could be different depending on what the carrier would be used for.

[Eric Korhonen]

Rick:
Your carriers are gorgeous, they are far from rough shape. Most are cut down to next to nothing. You have a very nice collection there. I look forward to seeing your progress on them.

Eric