G&L 1/5 DHC chipmunk - diary of a build.
09-15-2014, 01:00 PM
#777
Thanks guys, I am plugging away and got all the wiring done in the fuselage, just need to plug the wing in and go.
Still need to do the canopy and dry ink transfers. Guess I will do that tomorrow....amazing how much time it takes just to do wiring
TB
Still need to do the canopy and dry ink transfers. Guess I will do that tomorrow....amazing how much time it takes just to do wiring
TB
09-15-2014, 01:49 PM
#778
Join Date: Sep 2006
Location: The Sunshine state, when it's not raining!
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Ohhh how I know that feeling!
5 switches, three batteries, power board, 2 temp, 1 rpm, 1 airspeed, one USB outlet, throttle sensor, 9 servos, and a couple bridge rectifiers. Really glad I did not have lighting.
You are doing a fantastic job and as others, I can't wait to see the maiden.
5 switches, three batteries, power board, 2 temp, 1 rpm, 1 airspeed, one USB outlet, throttle sensor, 9 servos, and a couple bridge rectifiers. Really glad I did not have lighting.
You are doing a fantastic job and as others, I can't wait to see the maiden.
09-15-2014, 03:47 PM
#781
Canopy is installed.
As I thought I had to modify the wrench tool I made earlier.
I used some air hoes and fuel line to hold the screw in place.
I had to drill a third hole in the rear brace for the wrench to go threw, only way to install the screws.
Got some free weathering at the hatch, the canopy was binding there.
I trimmed the canopy back a bit, all is good now.
This should do it for the fuselage
I will do the dry ink transfers in the morning then onto the wing.
Almost there.
TB
As I thought I had to modify the wrench tool I made earlier.
I used some air hoes and fuel line to hold the screw in place.
I had to drill a third hole in the rear brace for the wrench to go threw, only way to install the screws.
Got some free weathering at the hatch
, the canopy was binding there.I trimmed the canopy back a bit, all is good now.
This should do it for the fuselage
I will do the dry ink transfers in the morning then onto the wing.
Almost there.
TB
09-15-2014, 04:27 PM
#782
Banned
I was waiting and hoping . . .
Tony,
I was hoping to see some information as to how you passed the wiring in the nearly finished wings to energize the navigation lights at the wing tips.
Zor
I was hoping to see some information as to how you passed the wiring in the nearly finished wings to energize the navigation lights at the wing tips.
Zor
09-15-2014, 05:47 PM
#785
Banned
Additional info for the uninitiated
The voltage drop across each diode is about 0.7 volts at any current load within its rating.
Looking at the attached sketch, if 7.4 DC volts is connected at top and bottom of the four diodes ( instead of a transformer ) the current will go thrugh two diodes and the voltage will drop by just about 1.4 volts to become 6.0 volts available. Similarly applying 5 NiCd or Ni Mh ( 6 volts ) will be reduced to 4.6 volts; close to four cells instead of five.
Zor
Last edited by Zor; 09-15-2014 at 06:08 PM. Reason: Corrected bull to full LOL
09-16-2014, 01:59 AM
#786
Todays tasks will be details on the fuselage, dry ink transfers and then I will work on the wing. I want to balance today if it does not rain. Weather is looking to be wet for the next few days so might not be able to make the field tomorrow. Friday looks to be the day, and maiden on Saturday.
TB
TB
09-16-2014, 06:21 AM
#788
Morning progress.
Ok Zor, just for you.
The nave lights are from DreamWorks hobbies, very affordable and they come two to a pack.
The black housing that holds the Led is from a Rcxel optical kill switch Led.
If you remember I did a channel from the root core all the way to the tip.
On the left wing tip I just used a 12" drill bit and drilled a hole from the nav light to the Pitot tube bay.
Then ran the wire in the channel with the servo leads.
On the right tip I drilled the hole to meet the channel then ran the wire to the aileron bay.
The nav lights where 3D printed by Chad. I did not paint them as I did not want a painted look.
I used a sharpie black marker to paint them with the ink.
This gives a more deeper looking color then just paint on top of the part.
Plus no wait time to dry, wont chip, can easily be touched up.
Sharpie has what they call the paint brush tips that are great for painting the ink color.
They come in red, green, black, and blue.
To hold the light housing I took the plastic insert that would be the leans if you painted it instead of having a Led.
I cut it to size and then glued it to the wing tip.
This gives me a way to mount the leans and housing to the block for removal if I ever need to replace it or the Led.
I drilled a hole and taped a 1-72 threaded screw to hold it to the block.
Then hit the screw with the sharpie.
Simple as pie, we got wing tip nave lights
Only issue is I did not adjust the cut outs before I started finishing the wing (totally forgot).
So the right side is small in the cut out and the housing barley fits so I am thinking if I want to cut it back or just leave it.
Landing gear are next.
TB
Ok Zor, just for you.
The nave lights are from DreamWorks hobbies, very affordable and they come two to a pack.
The black housing that holds the Led is from a Rcxel optical kill switch Led.
If you remember I did a channel from the root core all the way to the tip.
On the left wing tip I just used a 12" drill bit and drilled a hole from the nav light to the Pitot tube bay.
Then ran the wire in the channel with the servo leads.
On the right tip I drilled the hole to meet the channel then ran the wire to the aileron bay.
The nav lights where 3D printed by Chad. I did not paint them as I did not want a painted look.
I used a sharpie black marker to paint them with the ink.
This gives a more deeper looking color then just paint on top of the part.
Plus no wait time to dry, wont chip, can easily be touched up.
Sharpie has what they call the paint brush tips that are great for painting the ink color.
They come in red, green, black, and blue.
To hold the light housing I took the plastic insert that would be the leans if you painted it instead of having a Led.
I cut it to size and then glued it to the wing tip.
This gives me a way to mount the leans and housing to the block for removal if I ever need to replace it or the Led.
I drilled a hole and taped a 1-72 threaded screw to hold it to the block.
Then hit the screw with the sharpie.
Simple as pie, we got wing tip nave lights
Only issue is I did not adjust the cut outs before I started finishing the wing (totally forgot).
So the right side is small in the cut out and the housing barley fits so I am thinking if I want to cut it back or just leave it.
Landing gear are next.
TB
09-16-2014, 06:35 AM
#789
Join Date: Sep 2006
Location: The Sunshine state, when it's not raining!
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They look great. And trying to think ten steps ahead is not that easy, especially when one does not know what goes after step 4-5 or 6 without getting there.
09-16-2014, 02:41 PM
#791
Wing completion.
Well I got the wing all done and ready for flight.
The two thunderbolt rc 4 servo harnesses are installed and I do one male and one female so I don't mix them up.
the remaining details on the hatches are done. This is a test for when I do Angie.
All fasteners that are in painted areas will get silver vinyl fasteners after painting.
I did a test and when I painted the RCAF on the bottom of the wing I did not shoot clear first.
I painted the same way I did all the others, really light mist coats fallowed by wet coats.
The clear coating gives a much sharper line.
I still need to do the 671 on the left side, that stencils will be here tomorrow.
The hatches I use have a hole for the fastener to be applied after painting. Looks better and it is not just on top of the hatch.
Gear is all installed and ready to go.
if you remember when I painted the wing the first batch was orange and I forgot to repaint them on the second batch.
So I have a memento
I hope these Dubro wheels hold up. Nothing lasted on my first chippie.
if not I will get some Robart aluminum wheels.
Anti slip for the pilot is all in and ready for some nomenclatures.
I used 400 grit wet dry sand paper, glued with 3M spray glue.
I would first spray the bake, then apply it to a piece of wax paper. then transport it and peal it of.
This made the glue more uniform and nothing oozed out.
Pitot tube is in, hatches look good.
And finally the fuel fill and gage.
Basically I am done and all I need to do is balance and do filed setup, run up tests, taxi and so on.
I am sure as the weeks go on I will be adding small details and tweaking but for now......she is done
I will go in the morning and do setup and run-ups at the field.
TB
Well I got the wing all done and ready for flight.
The two thunderbolt rc 4 servo harnesses are installed and I do one male and one female so I don't mix them up.
the remaining details on the hatches are done. This is a test for when I do Angie.
All fasteners that are in painted areas will get silver vinyl fasteners after painting.
I did a test and when I painted the RCAF on the bottom of the wing I did not shoot clear first.
I painted the same way I did all the others, really light mist coats fallowed by wet coats.
The clear coating gives a much sharper line.
I still need to do the 671 on the left side, that stencils will be here tomorrow.
The hatches I use have a hole for the fastener to be applied after painting. Looks better and it is not just on top of the hatch.
Gear is all installed and ready to go.
if you remember when I painted the wing the first batch was orange and I forgot to repaint them on the second batch.
So I have a memento
I hope these Dubro wheels hold up. Nothing lasted on my first chippie.
if not I will get some Robart aluminum wheels.
Anti slip for the pilot is all in and ready for some nomenclatures.
I used 400 grit wet dry sand paper, glued with 3M spray glue.
I would first spray the bake, then apply it to a piece of wax paper. then transport it and peal it of.
This made the glue more uniform and nothing oozed out.
Pitot tube is in, hatches look good.
And finally the fuel fill and gage.
Basically I am done and all I need to do is balance and do filed setup, run up tests, taxi and so on.
I am sure as the weeks go on I will be adding small details and tweaking but for now......she is done
I will go in the morning and do setup and run-ups at the field.
TB
09-16-2014, 03:10 PM
#792
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I assume ( guess ) that 3d printed parts refers to such things as the name ( writings ) of the registration and other decors that on full size airplanes would have a thickness of 2 or more paint layers. That could be 0.002" to perhaps 0.005" . Same thickness would be on a reduced size model.
The word "printed" is, I think, confusing to me.
I am not crticizing . . . just trying to understand what is being referred to and the 2-3 heavy coats of prime would be to increase the thickness of the paint above the background finish upon which the printing is being done.
Sorry if I am "dumb" _ _ _ I was born that way _ _ _
Zor
The word "printed" is, I think, confusing to me.
I am not crticizing . . . just trying to understand what is being referred to and the 2-3 heavy coats of prime would be to increase the thickness of the paint above the background finish upon which the printing is being done.
Sorry if I am "dumb" _ _ _ I was born that way _ _ _
Zor
3d printing is also known as rapid prototyping and their are a number of variations of the theme. The term "3d printing" is applied because the machines used look and work very much like your standard printer. In basic terms they build up 3 dimensional items by building them up with very thin layers of material which are bound together with some form of agent. A Google search for either term, 3d printing or rapid prototyping, will provide you with hours and hours of detailed explanations of the various processes. Needless to say it has revolutionized many industries and is a fantastic tool for scale builders. Below are a few parts that I have had 3d printed for various projects.
Scale hubs for my Hellcat. The gray hub is the one that came with the tire while the white hub was the one I designed and had 3d printed. These are made from a nylon type of material.
Here is the tailwheel yoke for my Hellcat which is printed from stainless steel.
Another stainless steel tail wheel yoke, this time for a much larger Macchi 202. Also the computer model from which the part was 3d printed.
Cockpit details for various models. (And a gun barrel as well.)
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09-16-2014, 08:51 PM
#795
Banned
Printed ? _ _ _ Layer built ?
Chad Veich,
To show my appreciation for your explanation _ _ _
But let us not pursue this further as it seems out of topic in this thread.
Whatever binds the layers together does not contribute to homogeneity of the finished structure or shape.
I can see the fabrication principle but I have great doubts about the resulting characteristics of the printed product as compared to the known usual fabrication methods.
I thinks I would have lots to learn about all this printing technique and how it relates to building model airplanes.
Zor
To show my appreciation for your explanation _ _ _
But let us not pursue this further as it seems out of topic in this thread.
Whatever binds the layers together does not contribute to homogeneity of the finished structure or shape.
I can see the fabrication principle but I have great doubts about the resulting characteristics of the printed product as compared to the known usual fabrication methods.
I thinks I would have lots to learn about all this printing technique and how it relates to building model airplanes.
Zor
09-17-2014, 02:47 AM
#798
Zor, 3D printing has opened up a whole new world in scale building for me. Things that we use to have to spend countless hours fabricating out of materials that really don't hold up can now be printed in very strong materials in any shape or form. You don't have to own a 3d printer, there are dozens of online companies that will print anything you want. The most valuable tool would be a cad program and the knowledge to design your own parts like Chad does. With this the sky is the limit to what one can do. Soon all plastic formed parts in kits will be replaced with high quality 3D printed parts like cockpits and other scale details.
My wing tip navigation lights would have been almost impossible for me to build at least as nice as the ones Chad made for me. This ability for builders to have these parts are such a great tool and it is amazing to the existent that we can take are models to. I can see that a lot of my future builds will have many 3D printed details in them. To have someone like Chad out there that can design and make parts for us modelers is such a great tool, thanks Chad.
TB
My wing tip navigation lights would have been almost impossible for me to build at least as nice as the ones Chad made for me. This ability for builders to have these parts are such a great tool and it is amazing to the existent that we can take are models to. I can see that a lot of my future builds will have many 3D printed details in them. To have someone like Chad out there that can design and make parts for us modelers is such a great tool, thanks Chad.
TB
Last edited by TonyBuilder; 09-17-2014 at 02:50 AM.
09-17-2014, 11:32 AM
#800
Well I made it out to the field today. It was a great day, weather was cooperative and quite nice, got lots of pics and videos.
So first order of business was to mate the wing to the fuselage for the first time since I painted the wing.
That went good and no problems.... short of I forgot my setup stand.
One of the pilots that was there helped me.
The day started out cloudy and even a shower or two.
Next I needed to balance to see where I was at.
On the plans it shows the CG at 4"
I am balanced at 4"-3/8
On my first chippie I balanced at the recommended Cg and was very noes heavy, ended up taking off 16oz
So I don't want to add unnecessary weight if I don't need it, talking about weight.....................I did weigh her and............................................... ............??????
I will have to go back over the first build and see what I did there.
TB
So first order of business was to mate the wing to the fuselage for the first time since I painted the wing.
That went good and no problems.... short of I forgot my setup stand.
One of the pilots that was there helped me.
The day started out cloudy and even a shower or two.
Next I needed to balance to see where I was at.
On the plans it shows the CG at 4"
I am balanced at 4"-3/8
On my first chippie I balanced at the recommended Cg and was very noes heavy, ended up taking off 16oz
So I don't want to add unnecessary weight if I don't need it, talking about weight.....................I did weigh her and............................................... ............??????
I will have to go back over the first build and see what I did there.
TB
Last edited by TonyBuilder; 09-17-2014 at 11:44 AM.