3D Print Files for CTH Motor Mounts
______________________________________________________________________________________________________
______________________________________________________________________________________________________
We would like to thank our customers who have designed 3D printed motor mounts for CTH planes. All of these designs are free for you to download and use.
We are still going to continue putting our indestructable stainless steel motor mounts in the kits. These mount files are for all the 3D Printer fanatics out there.
Disclaimer...These printed mounts were origionally designed so we could use shorter lightweight motors on planes and increase prop clearance. Some heavier motor bolt patterns were added. Some of the designs below have not been tested. We have broken a few 3D printed mounts in testing. We also have some 3D printed mounts that have lasted for years. Printed 3D mounts are made from plastic that can melt so be aware of motors that run hot. Use fiber washers between the print and the motor if needed.
We are still going to continue putting our indestructable stainless steel motor mounts in the kits. These mount files are for all the 3D Printer fanatics out there.
Disclaimer...These printed mounts were origionally designed so we could use shorter lightweight motors on planes and increase prop clearance. Some heavier motor bolt patterns were added. Some of the designs below have not been tested. We have broken a few 3D printed mounts in testing. We also have some 3D printed mounts that have lasted for years. Printed 3D mounts are made from plastic that can melt so be aware of motors that run hot. Use fiber washers between the print and the motor if needed.
We suggest the following printer settings: Use PETG filament with 30% to 50% triangle fill with 4 surface layers and 10 base layers where screws may be used in the mounting of the motor. You will need to add a minimal support. Use the same settings on the extensions but if they are longer extensions also use 10 top layers to help with mounting the motors. Print mounts and extensions with the motor sides down on the printing plate.
Hot glue makes a permanent glue bond with the 3D printer filament so you can glue the mount directly to the wing. I punch holes through the laminate and tape on the finished wing with a soldering iron before hot gluing the motor mounts in place. I have also put a bolt through the mount and the wing on some planes. I have also seen some flyers use some formica under the mounts for added strength. Some of Chuck's designs have a wider mounting plate to decrease the need for the formica plates.
Hot glue makes a permanent glue bond with the 3D printer filament so you can glue the mount directly to the wing. I punch holes through the laminate and tape on the finished wing with a soldering iron before hot gluing the motor mounts in place. I have also put a bolt through the mount and the wing on some planes. I have also seen some flyers use some formica under the mounts for added strength. Some of Chuck's designs have a wider mounting plate to decrease the need for the formica plates.
Chuck has designed motor mount designs that fit the different Crashtesthobby flying wing airfoils. These are the most comprehensive 3D printed motor mounts I have ever seen. Many thanks Chuck for all the time you put into these designs!!! You really have gone the second mile. He has designed his mounts so you can choose your CTH flying wing, print the specific mount then choose an extension to fit your motor and prop.
Please start by reading his instructions and design explainations. It includes a lot of valuable information. You can download all of the mounts and extensions from his instruction file but the files are also separated out and listed below. Wide mounts are designed to work without Formica. The extensions allow a variety of motors to be put on each mount and are designed to give more prop clearance where needed especially when using the quad motors. Some of his designs work without an extension but just use the aluminum X mount included with the motor. I have listed all of the extensions below so they are easier to download.
Please start by reading his instructions and design explainations. It includes a lot of valuable information. You can download all of the mounts and extensions from his instruction file but the files are also separated out and listed below. Wide mounts are designed to work without Formica. The extensions allow a variety of motors to be put on each mount and are designed to give more prop clearance where needed especially when using the quad motors. Some of his designs work without an extension but just use the aluminum X mount included with the motor. I have listed all of the extensions below so they are easier to download.
Read Me file. It has a great explanation of Chuck's 2 piece mount designs.
| 3d_printable_motor_mounts_instructions_and_links_v3.docx |
Mounts for Assassins, Widowmakers, Scythes and Rebels. Wide mounts do not need Formica.
|
| ||||
|
| ||||
|
| ||||
|
| ||||
|
| ||||
|
| ||||
|
| ||||
Big wing 3D printed motor mounts Wide Mounts are designed to not need formica.
|
| ||||
|
| ||||
|
| ||||
|
| ||||
List of extensions that fit the mounts above.
Please refer to Chuck's instruction manual to choose an extension length.
Please refer to Chuck's instruction manual to choose an extension length.
Designed for 16mm T-motors. "Secure" because they have 4 corner screws for strength.
| 6_mm_secure_small_t_motor_extension_v3.stl |
| 10_mm_secure_small_t_motor_extension_v3.stl |
| 15_mm_secure_small_t_motor_extension_v3.stl |
| 20_mm_secure_small_t_motor_extension_v3.stl |
Designed for 16mm T-motors. Single bolt attachment.
| 6_mm_round_small_t_motor_extension_v3.stl |
| 10_mm_round_small_t_motor_extension_v3.stl |
| 15_mm_round_small_t_motor_extension_v3.stl |
| 20_mm_round_small_t_motor_extension_v3.stl |
Designed to fit motors with 28XX mm motor bolt patterns
| 5_mm_28_mm_outrunner_extension_v3.stl |
| 10_mm_28_mm_outrunner_extension_v3.stl |
| 15_mm_28_mm_outrunner_extension_v3.stl |
| 20_mm_28_mm_outrunner_extension_v3.stl |
Designed to attach the 35XX motors on the large wing designs.
35XX motors can also be mounted with the aluminum X adapters that come with the motors.
35XX motors can also be mounted with the aluminum X adapters that come with the motors.
| 6_mm_large_28_35_mm_outrunner_extension_v3.stl |
| 10_mm_large_28_38_mm_outrunner_extension_v3.stl |
| 15_mm_large_28_35_mm_outrunner_extension_v3.stl |
| 20_mm_large_28_35_mm_outrunner_extension_v3.stl |
Designed to put a T-motor on the larger mounts.
| 6_mm_large_t_motor_extension_v3.stl |
| 10_mm_large_t_motor_extension_v3.stl |
| 15_mm_large_t_motor_extension_v3.stl |
| 20_mm_large_t_motor_extension_v3.stl |
Designed with the bolt pattern of the Bad A motors.
| 6_mm_large_ba2800_outrunner_extension_v3.stl |
| 10_mm_large_ba2800_outrunner_extension_v3.stl |
| 15_mm_large_ba2800_outrunner_extension_v3.stl |
| 20_mm_large_ba2800_outrunner_extension_v3.stl |
The Assassin version is shown in pictures below but other STL files for all of the different airfoils are very similar and the extensions are interchangeable.
|
|
|
Here are some other designs to meet different needs.
Tom's quad motor adapter is designed to make it so you can use your quad motor with 20 mm bolt pattern with the stainless steel motor mount we have in the kits. It also moves the motor back 1.5 cm or 5/8" so you will have more prop clearance with the back trailing edge of the wing since the quad motors are so short.
Tom's quad motor adapter is designed to make it so you can use your quad motor with 20 mm bolt pattern with the stainless steel motor mount we have in the kits. It also moves the motor back 1.5 cm or 5/8" so you will have more prop clearance with the back trailing edge of the wing since the quad motors are so short.
| assassin_adapter_f80_motor_16mm.stl |
|
|
Kevin's origional strong motor mount designs with a thicker motor plate and a wedge at the angle. Great design for the Roswell.
| strong_16mm_motor_mount.stl |
| |||
|
|
|
My attempt at a lightweight motor mount design for 16-35 mm base bolt patterns. Don't cut your shock cord installing the mount. You can adjust the mount for your bolt pattern with a soldering iron if needed.
| 1x-mm-wedge_round_5-15-24-hpetg.stl |
|
|
|
These fins are designed to be glued into a slot in the end of the wing. They are a little brittle but a great idea.
| lt_winglet_100mm.stl |
|
|
|
Hot glue works great with the 3D printed mounts. I can't peel the EPP foam off when glued with hot glue.
More great designs by our customers. I have tried most of them:
Grim Reaper motor mount design by Jeff
https://www.rcgroups.com/forums/showpost.php?p=51657021&postcount=12357
Assassin and Rebel Files available to download on RC Groups
https://www.rcgroups.com/forums/showpost.php?p=51651861&postcount=2182
https://www.rcgroups.com/forums/showpost.php?p=51660429&postcount=2190
Vertigo
https://www.rcgroups.com/forums/showpost.php?p=51660429&postcount=2190
Thingiverse RC motor mounts designed by customers.
https://www.thingiverse.com/thing:4728585 - Designed for The CTH Assassin
https://www.thingiverse.com/thing:2626657 - Designed for the CTH Assassin
https://www.thingiverse.com/thing:2428204 - Another CTH Assassin design
https://www.thingiverse.com/thing:1869643 Motor mount for the Scythe.
https://www.thingiverse.com/thing:1310526
https://www.thingiverse.com/thing:3705055
Grim Reaper motor mount design by Jeff
https://www.rcgroups.com/forums/showpost.php?p=51657021&postcount=12357
Assassin and Rebel Files available to download on RC Groups
https://www.rcgroups.com/forums/showpost.php?p=51651861&postcount=2182
https://www.rcgroups.com/forums/showpost.php?p=51660429&postcount=2190
Vertigo
https://www.rcgroups.com/forums/showpost.php?p=51660429&postcount=2190
Thingiverse RC motor mounts designed by customers.
https://www.thingiverse.com/thing:4728585 - Designed for The CTH Assassin
https://www.thingiverse.com/thing:2626657 - Designed for the CTH Assassin
https://www.thingiverse.com/thing:2428204 - Another CTH Assassin design
https://www.thingiverse.com/thing:1869643 Motor mount for the Scythe.
https://www.thingiverse.com/thing:1310526
https://www.thingiverse.com/thing:3705055
__________________________________________________________________________________________________
Print your own ready-made decals
The following files have been done by Les who has made them so you can re-size and modify them to your needs with a Word document.
Here are his instructions:
1. Click on a Word file below and it will download to your PC, either save the file or select an image, copy and save.
2. Click on the image so that the dotted border can be seen. Re-size as needed and then print. Note that clicking/hold on the green dot will allow the image to be rotated into landscape format. If you want to modify the image, 'Picture Tools' will appear in the toolbar at the top, use the tools to make any changes and to alter the color.
3. Select a picture frame if wanted
4. Use Corrections, Colour, Artistic Effects and the other buttons to change the image to suit.
5. Expand or contract image - all elements are grouped and will re-scale equally. If the image is stretched too much it may disappear from the page, ‘Undo’ will bring it back.
6. Print onto paper in draft mode and place over the model to check the fit, re-size as appropriate.
7. To save photo paper, try and squeeze in a number of images on one A4 page, smaller ones look good on the fins.
Design them yourself
Begin by searching the web for clipart, Bing Image Feed is very good. You can also go to Google and search for "images" such as "Albatross cartoon images". If you search for just "Albatross" you will get pictures of birds.. If you search for "Grim Reaper cartoon images" you will get more simple children's type images and if you search for "Grim Reaper" it will be more intense art images. You can also do searches on Pinterest for some great ideas.
If using Bing, type in your search theme, click on ‘Filters’ at the right side of the screen, then move to ‘Images’ and choose Clipart. If for personal use, licence rights won’t apply, but there are options to select clipart available for commercial use and that’s the filter used to find the elements in the Word files below. Having found an image, click to open, then hit copy, and paste into an MS Word page. Now the editing starts.
Click on the image and ‘Picture Tools’ appears at the top, click on it and the tools palette appears. Firstly, click ‘Position’ to unlock the image so it can be moved around the page and then experiment to see what’s possible. If the image is stretched too much it may disappear from the page, ‘Undo’ will bring it back. Text can be added – click on ‘Insert’ and then on ‘WordArt’., type the text and select the font, colour and size. Picture Tools is a pretty basic graphics package, but is easier to use than vector based software, but it’s not always easy to move text around, so practice is necessary to achieve the right effect. The ‘Send Forward and Backward’ commands allow multiple images to be built up for effect.
One command that is important is to be able to set transparent colour – this renders the selected background transparent, allowing multiple images to be built up and still be seen.
Once you have built up a number of elements, they will have to be grouped so that the image can be stretched or contracted to suit its final location, and have each element move in unison. To do this on a Windows 10 PC, make sure the image is large and is in the centre of the screen, hit the Windows key and prtsc key at the same time – this saves the image in .png format in the ‘Screenshot’ folder on the PC. Open this folder, click to highlight, right click the mouse and Open With Paint (the Paint app should be already loaded in the apps file). Select ‘Crop’, crop the image and save again as a .png picture in a folder you have selected. Finally, go to that folder, click on the file image without opening the file and hit copy, then paste back into a Word file, click ‘Position’ again and you are done, you have an image that is a collection of elements that can be stretched to A4/A3 size without losing resolution.
Printing the Image
The graphic can be printed on a home inkjet printer using A4 Matt/satin or gloss Vinyl Self Adhesive Sticker Paper, easily bought on Amazon or from a company such as PhotoPaperDirect. As the ink is water based, it has to be set with a fixative which is sprayed on. If you have access to a colour laser printer, no fixative would be needed. Alternatively, apply a layer of CTH laminate over the vinyl, making sure there is an overlap to hold it down.
Test print on draft mode, and once happy, print on the vinyl at ‘best quality’ setting, as you would for a photograph. Let the ink dry. Cut around the image to size, remove the backing and it’s ready to enhance that wing.
We like to print the decals and art work on photo paper to get the brightest colors possible then cut them out and either put the decals directly on the foam under the laminate or put them on top of the laminate and use clear tape or laminate to and seal the edges. When attached with 2" wide clear packing tape on top of the laminate they can easily be removed or changed later. Be careful not to add too much weight behind the CG. A dusting of a spray adhesive on the back of the decal helps to hold it in place while you laminate over the top but isn't needed if you are careful when you are laminating or taping.
Print your own ready-made decals
The following files have been done by Les who has made them so you can re-size and modify them to your needs with a Word document.
Here are his instructions:
1. Click on a Word file below and it will download to your PC, either save the file or select an image, copy and save.
2. Click on the image so that the dotted border can be seen. Re-size as needed and then print. Note that clicking/hold on the green dot will allow the image to be rotated into landscape format. If you want to modify the image, 'Picture Tools' will appear in the toolbar at the top, use the tools to make any changes and to alter the color.
3. Select a picture frame if wanted
4. Use Corrections, Colour, Artistic Effects and the other buttons to change the image to suit.
5. Expand or contract image - all elements are grouped and will re-scale equally. If the image is stretched too much it may disappear from the page, ‘Undo’ will bring it back.
6. Print onto paper in draft mode and place over the model to check the fit, re-size as appropriate.
7. To save photo paper, try and squeeze in a number of images on one A4 page, smaller ones look good on the fins.
Design them yourself
Begin by searching the web for clipart, Bing Image Feed is very good. You can also go to Google and search for "images" such as "Albatross cartoon images". If you search for just "Albatross" you will get pictures of birds.. If you search for "Grim Reaper cartoon images" you will get more simple children's type images and if you search for "Grim Reaper" it will be more intense art images. You can also do searches on Pinterest for some great ideas.
If using Bing, type in your search theme, click on ‘Filters’ at the right side of the screen, then move to ‘Images’ and choose Clipart. If for personal use, licence rights won’t apply, but there are options to select clipart available for commercial use and that’s the filter used to find the elements in the Word files below. Having found an image, click to open, then hit copy, and paste into an MS Word page. Now the editing starts.
Click on the image and ‘Picture Tools’ appears at the top, click on it and the tools palette appears. Firstly, click ‘Position’ to unlock the image so it can be moved around the page and then experiment to see what’s possible. If the image is stretched too much it may disappear from the page, ‘Undo’ will bring it back. Text can be added – click on ‘Insert’ and then on ‘WordArt’., type the text and select the font, colour and size. Picture Tools is a pretty basic graphics package, but is easier to use than vector based software, but it’s not always easy to move text around, so practice is necessary to achieve the right effect. The ‘Send Forward and Backward’ commands allow multiple images to be built up for effect.
One command that is important is to be able to set transparent colour – this renders the selected background transparent, allowing multiple images to be built up and still be seen.
Once you have built up a number of elements, they will have to be grouped so that the image can be stretched or contracted to suit its final location, and have each element move in unison. To do this on a Windows 10 PC, make sure the image is large and is in the centre of the screen, hit the Windows key and prtsc key at the same time – this saves the image in .png format in the ‘Screenshot’ folder on the PC. Open this folder, click to highlight, right click the mouse and Open With Paint (the Paint app should be already loaded in the apps file). Select ‘Crop’, crop the image and save again as a .png picture in a folder you have selected. Finally, go to that folder, click on the file image without opening the file and hit copy, then paste back into a Word file, click ‘Position’ again and you are done, you have an image that is a collection of elements that can be stretched to A4/A3 size without losing resolution.
Printing the Image
The graphic can be printed on a home inkjet printer using A4 Matt/satin or gloss Vinyl Self Adhesive Sticker Paper, easily bought on Amazon or from a company such as PhotoPaperDirect. As the ink is water based, it has to be set with a fixative which is sprayed on. If you have access to a colour laser printer, no fixative would be needed. Alternatively, apply a layer of CTH laminate over the vinyl, making sure there is an overlap to hold it down.
Test print on draft mode, and once happy, print on the vinyl at ‘best quality’ setting, as you would for a photograph. Let the ink dry. Cut around the image to size, remove the backing and it’s ready to enhance that wing.
We like to print the decals and art work on photo paper to get the brightest colors possible then cut them out and either put the decals directly on the foam under the laminate or put them on top of the laminate and use clear tape or laminate to and seal the edges. When attached with 2" wide clear packing tape on top of the laminate they can easily be removed or changed later. Be careful not to add too much weight behind the CG. A dusting of a spray adhesive on the back of the decal helps to hold it in place while you laminate over the top but isn't needed if you are careful when you are laminating or taping.
| crashtest_hobby_logo_options-3.docx |
| dragons_wings_and_flames.docx |
| assassin_decals_final_2.docx |
| bullseye_decals_black.docx |
| bullseye_decals_ready.docx |
| grim_reaper_options_ready_2.docx |
| pelican_albatross_logos.docx |
| pelican_logos.docx |
| pinata_logos.docx |
| rebel_logos.docx |
| scythe_and_cth_logos.docx |
| scythe_logo_edited_and_locked.docx |
| vertigo_logo.docx |
| 16mm_motor_mount.stl |
